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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 14:37:10,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 14:37:10,400 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 14:37:10,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 14:37:10,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 14:37:10,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 14:37:10,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 14:37:10,417 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 14:37:10,419 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 14:37:10,419 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 14:37:10,421 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 14:37:10,422 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 14:37:10,423 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 14:37:10,424 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 14:37:10,425 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 14:37:10,426 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 14:37:10,427 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 14:37:10,428 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 14:37:10,430 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 14:37:10,432 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 14:37:10,433 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 14:37:10,434 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 14:37:10,437 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 14:37:10,437 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 14:37:10,437 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 14:37:10,438 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 14:37:10,439 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 14:37:10,440 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 14:37:10,441 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 14:37:10,442 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 14:37:10,442 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 14:37:10,443 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 14:37:10,443 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 14:37:10,443 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 14:37:10,446 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 14:37:10,448 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 14:37:10,448 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.epf [2018-11-07 14:37:10,467 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 14:37:10,467 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 14:37:10,468 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 14:37:10,468 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 14:37:10,469 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 14:37:10,469 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 14:37:10,469 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 14:37:10,469 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 14:37:10,469 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 14:37:10,470 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 14:37:10,470 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 14:37:10,470 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 14:37:10,471 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 14:37:10,471 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 14:37:10,472 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 14:37:10,472 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 14:37:10,472 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 14:37:10,472 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 14:37:10,472 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 14:37:10,473 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 14:37:10,473 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 14:37:10,473 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 14:37:10,473 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 14:37:10,473 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 14:37:10,475 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 14:37:10,475 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 14:37:10,475 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 14:37:10,475 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 14:37:10,475 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 14:37:10,476 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 14:37:10,476 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 14:37:10,476 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 14:37:10,477 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 14:37:10,477 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 14:37:10,530 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 14:37:10,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 14:37:10,555 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 14:37:10,556 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 14:37:10,557 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 14:37:10,558 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label09_true-unreach-call.c [2018-11-07 14:37:10,620 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b48ec31/db64f53936b54ed19a42608e5291de1d/FLAG06c4bf993 [2018-11-07 14:37:11,347 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 14:37:11,348 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label09_true-unreach-call.c [2018-11-07 14:37:11,377 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b48ec31/db64f53936b54ed19a42608e5291de1d/FLAG06c4bf993 [2018-11-07 14:37:11,393 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93b48ec31/db64f53936b54ed19a42608e5291de1d [2018-11-07 14:37:11,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 14:37:11,407 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 14:37:11,408 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 14:37:11,408 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 14:37:11,412 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 14:37:11,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:37:11" (1/1) ... [2018-11-07 14:37:11,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3164a125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:11, skipping insertion in model container [2018-11-07 14:37:11,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:37:11" (1/1) ... [2018-11-07 14:37:11,429 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 14:37:11,577 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 14:37:12,866 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 14:37:12,871 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 14:37:13,474 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 14:37:13,509 INFO L193 MainTranslator]: Completed translation [2018-11-07 14:37:13,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13 WrapperNode [2018-11-07 14:37:13,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 14:37:13,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 14:37:13,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 14:37:13,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 14:37:13,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:13,860 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:13,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 14:37:13,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 14:37:13,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 14:37:13,870 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 14:37:13,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:13,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:13,898 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:13,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:13,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:14,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:14,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (1/1) ... [2018-11-07 14:37:14,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 14:37:14,084 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 14:37:14,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 14:37:14,085 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 14:37:14,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (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 14:37:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 14:37:14,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 14:37:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 14:37:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 14:37:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 14:37:14,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 14:37:14,158 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 14:37:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 14:37:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 14:37:14,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 14:37:14,159 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 14:37:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 14:37:14,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 14:37:14,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 14:37:14,161 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 14:37:24,012 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 14:37:24,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:37:24 BoogieIcfgContainer [2018-11-07 14:37:24,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 14:37:24,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 14:37:24,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 14:37:24,019 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 14:37:24,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:37:11" (1/3) ... [2018-11-07 14:37:24,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578e8c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:37:24, skipping insertion in model container [2018-11-07 14:37:24,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:37:13" (2/3) ... [2018-11-07 14:37:24,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578e8c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:37:24, skipping insertion in model container [2018-11-07 14:37:24,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:37:24" (3/3) ... [2018-11-07 14:37:24,023 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label09_true-unreach-call.c [2018-11-07 14:37:24,033 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 14:37:24,043 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 14:37:24,061 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 14:37:24,108 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 14:37:24,108 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 14:37:24,108 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 14:37:24,109 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 14:37:24,109 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 14:37:24,109 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 14:37:24,109 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 14:37:24,109 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 14:37:24,168 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 14:37:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2018-11-07 14:37:24,178 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:37:24,179 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, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 14:37:24,181 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:37:24,186 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:37:24,186 INFO L82 PathProgramCache]: Analyzing trace with hash -539031517, now seen corresponding path program 1 times [2018-11-07 14:37:24,189 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:37:24,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:24,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:37:24,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:24,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:37:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:37:24,940 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 14:37:24,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:37:24,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 14:37:24,944 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:37:24,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 14:37:24,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 14:37:24,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 14:37:24,977 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 14:37:32,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:37:32,920 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 14:37:32,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 14:37:32,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 73 [2018-11-07 14:37:32,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:37:32,959 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 14:37:32,960 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 14:37:32,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 14:37:32,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 14:37:33,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 14:37:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 14:37:33,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2969 transitions. [2018-11-07 14:37:33,162 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2969 transitions. Word has length 73 [2018-11-07 14:37:33,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:37:33,164 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2969 transitions. [2018-11-07 14:37:33,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 14:37:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2969 transitions. [2018-11-07 14:37:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-11-07 14:37:33,177 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:37:33,178 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 14:37:33,178 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:37:33,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:37:33,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1174971868, now seen corresponding path program 1 times [2018-11-07 14:37:33,179 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:37:33,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:33,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:37:33,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:33,182 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:37:33,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:37:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:37:33,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:37:33,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 14:37:33,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:37:33,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 14:37:33,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 14:37:33,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 14:37:33,519 INFO L87 Difference]: Start difference. First operand 1604 states and 2969 transitions. Second operand 5 states. [2018-11-07 14:37:44,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:37:44,205 INFO L93 Difference]: Finished difference Result 4038 states and 7427 transitions. [2018-11-07 14:37:44,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 14:37:44,207 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-11-07 14:37:44,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:37:44,224 INFO L225 Difference]: With dead ends: 4038 [2018-11-07 14:37:44,225 INFO L226 Difference]: Without dead ends: 2440 [2018-11-07 14:37:44,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 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 14:37:44,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2018-11-07 14:37:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2413. [2018-11-07 14:37:44,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2413 states. [2018-11-07 14:37:44,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 4141 transitions. [2018-11-07 14:37:44,313 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 4141 transitions. Word has length 147 [2018-11-07 14:37:44,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:37:44,314 INFO L480 AbstractCegarLoop]: Abstraction has 2413 states and 4141 transitions. [2018-11-07 14:37:44,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 14:37:44,314 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 4141 transitions. [2018-11-07 14:37:44,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 14:37:44,322 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:37:44,323 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, 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] [2018-11-07 14:37:44,323 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:37:44,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:37:44,324 INFO L82 PathProgramCache]: Analyzing trace with hash 710506752, now seen corresponding path program 1 times [2018-11-07 14:37:44,329 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:37:44,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:44,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:37:44,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:44,330 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:37:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:37:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:37:44,533 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:37:44,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 14:37:44,534 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:37:44,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 14:37:44,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 14:37:44,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 14:37:44,535 INFO L87 Difference]: Start difference. First operand 2413 states and 4141 transitions. Second operand 4 states. [2018-11-07 14:37:53,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:37:53,104 INFO L93 Difference]: Finished difference Result 9492 states and 16758 transitions. [2018-11-07 14:37:53,115 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 14:37:53,115 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2018-11-07 14:37:53,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:37:53,168 INFO L225 Difference]: With dead ends: 9492 [2018-11-07 14:37:53,169 INFO L226 Difference]: Without dead ends: 7085 [2018-11-07 14:37:53,183 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 14:37:53,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7085 states. [2018-11-07 14:37:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7085 to 7085. [2018-11-07 14:37:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7085 states. [2018-11-07 14:37:53,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7085 states to 7085 states and 11755 transitions. [2018-11-07 14:37:53,409 INFO L78 Accepts]: Start accepts. Automaton has 7085 states and 11755 transitions. Word has length 149 [2018-11-07 14:37:53,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:37:53,410 INFO L480 AbstractCegarLoop]: Abstraction has 7085 states and 11755 transitions. [2018-11-07 14:37:53,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 14:37:53,410 INFO L276 IsEmpty]: Start isEmpty. Operand 7085 states and 11755 transitions. [2018-11-07 14:37:53,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-11-07 14:37:53,416 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:37:53,417 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, 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 14:37:53,417 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:37:53,417 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:37:53,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2064727429, now seen corresponding path program 1 times [2018-11-07 14:37:53,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:37:53,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:53,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:37:53,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:37:53,419 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:37:53,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:37:53,667 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 14:37:53,667 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 14:37:53,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 14:37:53,668 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:37:53,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 14:37:53,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 14:37:53,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 14:37:53,669 INFO L87 Difference]: Start difference. First operand 7085 states and 11755 transitions. Second operand 6 states. [2018-11-07 14:38:00,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 14:38:00,139 INFO L93 Difference]: Finished difference Result 16634 states and 27837 transitions. [2018-11-07 14:38:00,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 14:38:00,141 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-11-07 14:38:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 14:38:00,193 INFO L225 Difference]: With dead ends: 16634 [2018-11-07 14:38:00,193 INFO L226 Difference]: Without dead ends: 9555 [2018-11-07 14:38:00,220 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 14:38:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9555 states. [2018-11-07 14:38:00,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9555 to 9513. [2018-11-07 14:38:00,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9513 states. [2018-11-07 14:38:00,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9513 states to 9513 states and 14979 transitions. [2018-11-07 14:38:00,476 INFO L78 Accepts]: Start accepts. Automaton has 9513 states and 14979 transitions. Word has length 176 [2018-11-07 14:38:00,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 14:38:00,477 INFO L480 AbstractCegarLoop]: Abstraction has 9513 states and 14979 transitions. [2018-11-07 14:38:00,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 14:38:00,477 INFO L276 IsEmpty]: Start isEmpty. Operand 9513 states and 14979 transitions. [2018-11-07 14:38:00,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-11-07 14:38:00,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 14:38:00,492 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, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 14:38:00,493 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 14:38:00,493 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:38:00,493 INFO L82 PathProgramCache]: Analyzing trace with hash -907554919, now seen corresponding path program 1 times [2018-11-07 14:38:00,493 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 14:38:00,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:38:00,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 14:38:00,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 14:38:00,495 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 14:38:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 14:38:00,770 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 14:38:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 132 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 14:38:00,931 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 14:38:00,931 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 14:38:00,932 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-11-07 14:38:00,934 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2331], [2339], [2347], [2351], [2353], [2356], [2361], [2365], [2369], [2373], [2376], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2448], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 14:38:00,984 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 14:38:00,984 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 14:38:01,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 14:38:01,526 INFO L272 AbstractInterpreter]: Visited 97 different actions 97 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 14:38:01,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 14:38:01,575 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 14:38:02,210 INFO L227 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 75.92% of their original sizes. [2018-11-07 14:38:02,210 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 14:38:02,524 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-11-07 14:38:02,524 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 14:38:02,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 14:38:02,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-07 14:38:02,525 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 14:38:02,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 14:38:02,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 14:38:02,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 14:38:02,527 INFO L87 Difference]: Start difference. First operand 9513 states and 14979 transitions. Second operand 8 states. [2018-11-07 14:38:08,196 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown