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/Problem13_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:53:13,088 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:53:13,090 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:53:13,103 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:53:13,103 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:53:13,104 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:53:13,105 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:53:13,107 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:53:13,109 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:53:13,110 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:53:13,111 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:53:13,111 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:53:13,112 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:53:13,113 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:53:13,114 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:53:13,115 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:53:13,116 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:53:13,117 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:53:13,119 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:53:13,121 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:53:13,122 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:53:13,123 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:53:13,126 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:53:13,126 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:53:13,126 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:53:13,128 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:53:13,129 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:53:13,129 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:53:13,130 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:53:13,131 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:53:13,131 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:53:13,132 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:53:13,132 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:53:13,133 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:53:13,134 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:53:13,134 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:53:13,135 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 08:53:13,151 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:53:13,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:53:13,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:53:13,152 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:53:13,152 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:53:13,153 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:53:13,153 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:53:13,153 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:53:13,153 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:53:13,153 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:53:13,154 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:53:13,154 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:53:13,154 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:53:13,154 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:53:13,155 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:53:13,155 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:53:13,155 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:53:13,156 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:53:13,156 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:53:13,156 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:53:13,156 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:53:13,156 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:53:13,157 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:53:13,157 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:53:13,157 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:53:13,157 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:53:13,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:53:13,158 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:53:13,158 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:53:13,158 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:53:13,158 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:53:13,158 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:53:13,159 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:53:13,159 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:53:13,159 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:53:13,159 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:53:13,204 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:53:13,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:53:13,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:53:13,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:53:13,224 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:53:13,225 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-11-07 08:53:13,289 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b4764ab8/982b7090606e40e7a21fc43f36a3dc5a/FLAG5fec37c1a [2018-11-07 08:53:14,146 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:53:14,147 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label38_true-unreach-call.c [2018-11-07 08:53:14,185 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b4764ab8/982b7090606e40e7a21fc43f36a3dc5a/FLAG5fec37c1a [2018-11-07 08:53:14,210 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b4764ab8/982b7090606e40e7a21fc43f36a3dc5a [2018-11-07 08:53:14,223 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:53:14,225 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:53:14,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:53:14,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:53:14,233 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:53:14,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:53:14" (1/1) ... [2018-11-07 08:53:14,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:14, skipping insertion in model container [2018-11-07 08:53:14,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:53:14" (1/1) ... [2018-11-07 08:53:14,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:53:14,451 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:53:16,055 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:53:16,059 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:53:16,787 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:53:16,829 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:53:16,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16 WrapperNode [2018-11-07 08:53:16,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:53:16,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:53:16,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:53:16,833 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:53:16,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,272 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:53:17,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:53:17,282 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:53:17,282 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:53:17,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (1/1) ... [2018-11-07 08:53:17,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:53:17,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:53:17,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:53:17,564 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:53:17,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (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 08:53:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:53:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:53:17,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:53:17,641 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:53:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:53:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:53:17,642 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:53:17,642 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:53:17,643 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:53:17,643 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:53:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:53:17,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:53:17,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:53:17,645 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:53:17,645 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:53:27,132 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:53:27,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:53:27 BoogieIcfgContainer [2018-11-07 08:53:27,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:53:27,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:53:27,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:53:27,138 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:53:27,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:53:14" (1/3) ... [2018-11-07 08:53:27,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d1f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:53:27, skipping insertion in model container [2018-11-07 08:53:27,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:53:16" (2/3) ... [2018-11-07 08:53:27,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d1f53e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:53:27, skipping insertion in model container [2018-11-07 08:53:27,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:53:27" (3/3) ... [2018-11-07 08:53:27,142 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label38_true-unreach-call.c [2018-11-07 08:53:27,153 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:53:27,166 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:53:27,186 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:53:27,248 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:53:27,248 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:53:27,248 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:53:27,249 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:53:27,249 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:53:27,249 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:53:27,249 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:53:27,249 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:53:27,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 08:53:27,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-11-07 08:53:27,312 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:53:27,313 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, 1, 1, 1, 1, 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 08:53:27,316 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:53:27,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:53:27,322 INFO L82 PathProgramCache]: Analyzing trace with hash 437838356, now seen corresponding path program 1 times [2018-11-07 08:53:27,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:53:27,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:53:27,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:53:27,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:53:27,382 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:53:27,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:53:27,865 WARN L179 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:53:28,013 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 08:53:28,016 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:53:28,016 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:53:28,017 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:53:28,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:53:28,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:53:28,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:53:28,062 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 08:53:37,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:53:37,585 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-11-07 08:53:37,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:53:37,587 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-11-07 08:53:37,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:53:37,631 INFO L225 Difference]: With dead ends: 3087 [2018-11-07 08:53:37,635 INFO L226 Difference]: Without dead ends: 1965 [2018-11-07 08:53:37,656 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 08:53:37,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-11-07 08:53:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-11-07 08:53:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-07 08:53:37,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-11-07 08:53:37,825 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 66 [2018-11-07 08:53:37,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:53:37,826 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-11-07 08:53:37,826 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:53:37,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-11-07 08:53:37,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 08:53:37,835 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:53:37,836 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:53:37,836 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:53:37,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:53:37,837 INFO L82 PathProgramCache]: Analyzing trace with hash 124498118, now seen corresponding path program 1 times [2018-11-07 08:53:37,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:53:37,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:53:37,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:53:37,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:53:37,838 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:53:37,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:53:38,283 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:53:38,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:53:38,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:53:38,284 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:53:38,286 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:53:38,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:53:38,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:53:38,287 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-11-07 08:53:50,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:53:50,891 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-11-07 08:53:50,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:53:50,891 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-07 08:53:50,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:53:50,921 INFO L225 Difference]: With dead ends: 5634 [2018-11-07 08:53:50,921 INFO L226 Difference]: Without dead ends: 3681 [2018-11-07 08:53:50,930 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:53:50,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-11-07 08:53:51,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-11-07 08:53:51,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-11-07 08:53:51,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-11-07 08:53:51,051 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 143 [2018-11-07 08:53:51,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:53:51,052 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-11-07 08:53:51,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:53:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-11-07 08:53:51,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-11-07 08:53:51,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:53:51,063 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:53:51,064 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:53:51,064 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:53:51,064 INFO L82 PathProgramCache]: Analyzing trace with hash -738024772, now seen corresponding path program 1 times [2018-11-07 08:53:51,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:53:51,065 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:53:51,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:53:51,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:53:51,066 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:53:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:53:51,669 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:53:51,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:53:51,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:53:51,670 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:53:51,672 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:53:51,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:53:51,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:53:51,673 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-11-07 08:54:01,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:54:01,513 INFO L93 Difference]: Finished difference Result 12385 states and 20601 transitions. [2018-11-07 08:54:01,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:54:01,514 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-11-07 08:54:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:54:01,564 INFO L225 Difference]: With dead ends: 12385 [2018-11-07 08:54:01,564 INFO L226 Difference]: Without dead ends: 8741 [2018-11-07 08:54:01,586 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:54:01,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8741 states. [2018-11-07 08:54:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8741 to 8684. [2018-11-07 08:54:01,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8684 states. [2018-11-07 08:54:01,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8684 states to 8684 states and 12864 transitions. [2018-11-07 08:54:01,830 INFO L78 Accepts]: Start accepts. Automaton has 8684 states and 12864 transitions. Word has length 162 [2018-11-07 08:54:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:54:01,831 INFO L480 AbstractCegarLoop]: Abstraction has 8684 states and 12864 transitions. [2018-11-07 08:54:01,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:54:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8684 states and 12864 transitions. [2018-11-07 08:54:01,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-11-07 08:54:01,836 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:01,836 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, 2, 2, 2, 2, 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] [2018-11-07 08:54:01,836 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:01,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:01,837 INFO L82 PathProgramCache]: Analyzing trace with hash -645382492, now seen corresponding path program 1 times [2018-11-07 08:54:01,837 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:01,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:01,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:01,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:01,838 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:02,205 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:54:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:54:02,616 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:54:02,616 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:54:02,616 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:54:02,619 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:54:02,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:54:02,619 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:54:02,620 INFO L87 Difference]: Start difference. First operand 8684 states and 12864 transitions. Second operand 6 states. [2018-11-07 08:54:13,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:54:13,482 INFO L93 Difference]: Finished difference Result 22909 states and 34919 transitions. [2018-11-07 08:54:13,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:54:13,486 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2018-11-07 08:54:13,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:54:13,574 INFO L225 Difference]: With dead ends: 22909 [2018-11-07 08:54:13,574 INFO L226 Difference]: Without dead ends: 14231 [2018-11-07 08:54:13,616 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:54:13,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14231 states. [2018-11-07 08:54:14,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14231 to 14057. [2018-11-07 08:54:14,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14057 states. [2018-11-07 08:54:14,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14057 states to 14057 states and 19960 transitions. [2018-11-07 08:54:14,040 INFO L78 Accepts]: Start accepts. Automaton has 14057 states and 19960 transitions. Word has length 174 [2018-11-07 08:54:14,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:54:14,040 INFO L480 AbstractCegarLoop]: Abstraction has 14057 states and 19960 transitions. [2018-11-07 08:54:14,040 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:54:14,041 INFO L276 IsEmpty]: Start isEmpty. Operand 14057 states and 19960 transitions. [2018-11-07 08:54:14,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-11-07 08:54:14,051 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:54:14,051 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 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 08:54:14,052 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:54:14,052 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:14,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1546539748, now seen corresponding path program 1 times [2018-11-07 08:54:14,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:54:14,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:14,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:54:14,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:54:14,054 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:54:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:54:14,433 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 118 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 08:54:14,435 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:54:14,436 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:54:14,437 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 230 with the following transitions: [2018-11-07 08:54:14,447 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3055], [3057], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3225], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 08:54:14,521 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:54:14,521 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:54:15,021 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:54:15,023 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 08:54:15,054 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:54:15,054 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:54:15,746 INFO L227 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 71.63% of their original sizes. [2018-11-07 08:54:15,746 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:54:15,935 INFO L415 sIntCurrentIteration]: We unified 228 AI predicates to 228 [2018-11-07 08:54:15,935 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:54:15,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:54:15,937 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-11-07 08:54:15,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:54:15,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:54:15,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:54:15,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:54:15,938 INFO L87 Difference]: Start difference. First operand 14057 states and 19960 transitions. Second operand 6 states. Received shutdown request... [2018-11-07 08:57:18,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:57:18,776 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:57:18,782 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:57:18,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:57:18 BoogieIcfgContainer [2018-11-07 08:57:18,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:57:18,783 INFO L168 Benchmark]: Toolchain (without parser) took 244559.29 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 26.2 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 08:57:18,784 INFO L168 Benchmark]: CDTParser took 0.18 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 08:57:18,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2603.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-07 08:57:18,786 INFO L168 Benchmark]: Boogie Procedure Inliner took 450.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 08:57:18,793 INFO L168 Benchmark]: Boogie Preprocessor took 281.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. [2018-11-07 08:57:18,794 INFO L168 Benchmark]: RCFGBuilder took 9569.57 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 179.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -285.4 kB). Peak memory consumption was 680.9 MB. Max. memory is 7.1 GB. [2018-11-07 08:57:18,795 INFO L168 Benchmark]: TraceAbstraction took 231648.12 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 848.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 08:57:18,801 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 2603.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 450.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 812.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 281.10 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9569.57 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 179.8 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -285.4 kB). Peak memory consumption was 680.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231648.12 ms. Allocated memory was 2.5 GB in the beginning and 4.2 GB in the end (delta: 1.7 GB). Free memory was 2.2 GB in the beginning and 1.4 GB in the end (delta: 848.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (14057states) and FLOYD_HOARE automaton (currently 6 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (27562 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 231.5s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 226.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3117 SDtfs, 17126 SDslu, 1846 SDs, 0 SdLazy, 21382 SolverSat, 6579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 197.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 265 GetRequests, 233 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14057occurred 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, 0.9977427305087492 AbsIntWeakeningRatio, 0.11842105263157894 AbsIntAvgWeakeningVarsNumRemoved, 16.464912280701753 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 268 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 774 NumberOfCodeBlocks, 774 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 436160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 300/367 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown