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/Problem19_label47_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 12:41:36,566 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 12:41:36,568 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 12:41:36,580 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 12:41:36,580 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 12:41:36,581 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 12:41:36,583 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 12:41:36,585 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 12:41:36,586 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 12:41:36,587 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 12:41:36,588 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 12:41:36,588 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 12:41:36,589 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 12:41:36,590 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 12:41:36,592 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 12:41:36,592 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 12:41:36,593 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 12:41:36,595 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 12:41:36,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 12:41:36,599 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 12:41:36,600 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 12:41:36,601 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 12:41:36,604 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 12:41:36,604 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 12:41:36,604 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 12:41:36,605 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 12:41:36,606 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 12:41:36,607 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 12:41:36,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 12:41:36,609 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 12:41:36,609 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 12:41:36,610 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 12:41:36,610 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 12:41:36,610 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 12:41:36,614 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 12:41:36,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 12:41:36,616 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 12:41:36,631 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 12:41:36,631 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 12:41:36,632 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 12:41:36,632 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 12:41:36,632 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 12:41:36,632 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 12:41:36,632 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 12:41:36,633 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 12:41:36,633 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 12:41:36,633 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 12:41:36,633 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 12:41:36,633 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 12:41:36,634 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 12:41:36,634 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 12:41:36,635 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 12:41:36,635 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 12:41:36,635 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 12:41:36,635 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 12:41:36,635 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 12:41:36,635 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 12:41:36,636 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 12:41:36,636 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 12:41:36,636 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 12:41:36,636 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 12:41:36,636 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 12:41:36,637 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 12:41:36,637 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 12:41:36,637 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 12:41:36,637 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 12:41:36,637 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 12:41:36,638 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 12:41:36,638 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 12:41:36,638 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 12:41:36,638 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 12:41:36,685 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 12:41:36,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 12:41:36,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 12:41:36,709 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 12:41:36,709 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 12:41:36,710 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-11-07 12:41:36,785 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cec68237/7ab6efe373c845399a373746f9c77b40/FLAG3b07d29a2 [2018-11-07 12:41:37,712 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 12:41:37,713 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label47_false-unreach-call.c [2018-11-07 12:41:37,763 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cec68237/7ab6efe373c845399a373746f9c77b40/FLAG3b07d29a2 [2018-11-07 12:41:37,780 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cec68237/7ab6efe373c845399a373746f9c77b40 [2018-11-07 12:41:37,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 12:41:37,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 12:41:37,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 12:41:37,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 12:41:37,803 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 12:41:37,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:41:37" (1/1) ... [2018-11-07 12:41:37,807 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7293a3c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:37, skipping insertion in model container [2018-11-07 12:41:37,807 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:41:37" (1/1) ... [2018-11-07 12:41:37,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 12:41:38,065 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 12:41:40,045 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:41:40,053 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 12:41:41,273 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 12:41:41,334 INFO L193 MainTranslator]: Completed translation [2018-11-07 12:41:41,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41 WrapperNode [2018-11-07 12:41:41,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 12:41:41,336 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 12:41:41,336 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 12:41:41,336 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 12:41:41,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:41,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:41,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 12:41:41,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 12:41:41,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 12:41:41,859 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 12:41:41,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:41,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:41,915 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:41,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:42,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:42,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:42,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (1/1) ... [2018-11-07 12:41:42,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 12:41:42,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 12:41:42,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 12:41:42,360 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 12:41:42,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (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 12:41:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 12:41:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 12:41:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 12:41:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-11-07 12:41:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-11-07 12:41:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-11-07 12:41:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-11-07 12:41:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 12:41:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 12:41:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 12:41:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 12:41:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 12:41:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 12:41:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 12:41:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 12:41:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 12:41:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 12:41:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 12:41:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 12:41:57,327 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 12:41:57,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:41:57 BoogieIcfgContainer [2018-11-07 12:41:57,327 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 12:41:57,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 12:41:57,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 12:41:57,332 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 12:41:57,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:41:37" (1/3) ... [2018-11-07 12:41:57,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c5c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:41:57, skipping insertion in model container [2018-11-07 12:41:57,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:41:41" (2/3) ... [2018-11-07 12:41:57,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68c5c456 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:41:57, skipping insertion in model container [2018-11-07 12:41:57,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:41:57" (3/3) ... [2018-11-07 12:41:57,336 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label47_false-unreach-call.c [2018-11-07 12:41:57,346 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 12:41:57,356 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 12:41:57,375 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 12:41:57,429 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 12:41:57,430 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 12:41:57,430 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 12:41:57,430 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 12:41:57,430 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 12:41:57,430 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 12:41:57,431 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 12:41:57,431 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 12:41:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-11-07 12:41:57,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-07 12:41:57,493 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:41:57,495 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:41:57,497 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:41:57,503 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:41:57,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1585777530, now seen corresponding path program 1 times [2018-11-07 12:41:57,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:41:57,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:41:57,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:41:57,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:41:57,554 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:41:57,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:41:57,860 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 12:41:57,961 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 12:41:57,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:41:57,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 12:41:57,967 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:41:57,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 12:41:57,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 12:41:57,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:41:57,995 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-11-07 12:42:12,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:42:12,706 INFO L93 Difference]: Finished difference Result 5034 states and 9499 transitions. [2018-11-07 12:42:12,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 12:42:12,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-07 12:42:12,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:42:12,771 INFO L225 Difference]: With dead ends: 5034 [2018-11-07 12:42:12,771 INFO L226 Difference]: Without dead ends: 3254 [2018-11-07 12:42:12,791 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 12:42:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2018-11-07 12:42:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3207. [2018-11-07 12:42:12,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3207 states. [2018-11-07 12:42:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 5994 transitions. [2018-11-07 12:42:13,003 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 5994 transitions. Word has length 15 [2018-11-07 12:42:13,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:42:13,004 INFO L480 AbstractCegarLoop]: Abstraction has 3207 states and 5994 transitions. [2018-11-07 12:42:13,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 12:42:13,004 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 5994 transitions. [2018-11-07 12:42:13,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-11-07 12:42:13,010 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:42:13,010 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:42:13,011 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:42:13,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:42:13,012 INFO L82 PathProgramCache]: Analyzing trace with hash -496581386, now seen corresponding path program 1 times [2018-11-07 12:42:13,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:42:13,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:42:13,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:42:13,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:42:13,014 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:42:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:42:13,366 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:42:13,367 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:42:13,367 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 12:42:13,367 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:42:13,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 12:42:13,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 12:42:13,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 12:42:13,370 INFO L87 Difference]: Start difference. First operand 3207 states and 5994 transitions. Second operand 6 states. [2018-11-07 12:42:31,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:42:31,689 INFO L93 Difference]: Finished difference Result 9586 states and 17981 transitions. [2018-11-07 12:42:31,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 12:42:31,689 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2018-11-07 12:42:31,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:42:31,735 INFO L225 Difference]: With dead ends: 9586 [2018-11-07 12:42:31,735 INFO L226 Difference]: Without dead ends: 6385 [2018-11-07 12:42:31,746 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 12:42:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2018-11-07 12:42:31,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 6261. [2018-11-07 12:42:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6261 states. [2018-11-07 12:42:31,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6261 states to 6261 states and 11290 transitions. [2018-11-07 12:42:31,941 INFO L78 Accepts]: Start accepts. Automaton has 6261 states and 11290 transitions. Word has length 88 [2018-11-07 12:42:31,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:42:31,942 INFO L480 AbstractCegarLoop]: Abstraction has 6261 states and 11290 transitions. [2018-11-07 12:42:31,942 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 12:42:31,942 INFO L276 IsEmpty]: Start isEmpty. Operand 6261 states and 11290 transitions. [2018-11-07 12:42:31,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 12:42:31,950 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:42:31,950 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:42:31,951 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:42:31,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:42:31,951 INFO L82 PathProgramCache]: Analyzing trace with hash -805674407, now seen corresponding path program 1 times [2018-11-07 12:42:31,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:42:31,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:42:31,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:42:31,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:42:31,953 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:42:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:42:32,175 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 12:42:32,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 12:42:32,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 12:42:32,176 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:42:32,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 12:42:32,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 12:42:32,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 12:42:32,177 INFO L87 Difference]: Start difference. First operand 6261 states and 11290 transitions. Second operand 5 states. [2018-11-07 12:42:49,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 12:42:49,598 INFO L93 Difference]: Finished difference Result 18898 states and 34251 transitions. [2018-11-07 12:42:49,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 12:42:49,600 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2018-11-07 12:42:49,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 12:42:49,658 INFO L225 Difference]: With dead ends: 18898 [2018-11-07 12:42:49,658 INFO L226 Difference]: Without dead ends: 12643 [2018-11-07 12:42:49,676 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 12:42:49,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12643 states. [2018-11-07 12:42:49,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12643 to 12378. [2018-11-07 12:42:49,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12378 states. [2018-11-07 12:42:49,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12378 states to 12378 states and 18858 transitions. [2018-11-07 12:42:49,979 INFO L78 Accepts]: Start accepts. Automaton has 12378 states and 18858 transitions. Word has length 102 [2018-11-07 12:42:49,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 12:42:49,980 INFO L480 AbstractCegarLoop]: Abstraction has 12378 states and 18858 transitions. [2018-11-07 12:42:49,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 12:42:49,980 INFO L276 IsEmpty]: Start isEmpty. Operand 12378 states and 18858 transitions. [2018-11-07 12:42:49,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-07 12:42:49,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 12:42:49,985 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 12:42:49,985 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 12:42:49,985 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:42:49,986 INFO L82 PathProgramCache]: Analyzing trace with hash 530660719, now seen corresponding path program 1 times [2018-11-07 12:42:49,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 12:42:49,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:42:49,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 12:42:49,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 12:42:49,987 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 12:42:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 12:42:50,525 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 12:42:50,525 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 12:42:50,526 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 12:42:50,527 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-07 12:42:50,529 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5246], [5248], [5251], [5259], [5267], [5275], [5283], [5291], [5299], [5307], [5315], [5323], [5331], [5339], [5347], [5355], [5363], [5371], [5379], [5387], [5395], [5403], [5411], [5419], [5427], [5435], [5443], [5451], [5459], [5467], [5475], [5483], [5491], [5499], [5507], [5515], [5523], [5531], [5539], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5822], [5823], [5827], [5838], [5841], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-11-07 12:42:50,573 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 12:42:50,573 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 12:42:51,142 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 12:42:51,145 INFO L272 AbstractInterpreter]: Visited 95 different actions 95 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 12:42:51,189 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 12:42:51,190 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 12:42:51,679 INFO L227 lantSequenceWeakener]: Weakened 183 states. On average, predicates are now at 74.83% of their original sizes. [2018-11-07 12:42:51,680 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 12:42:51,898 INFO L415 sIntCurrentIteration]: We unified 191 AI predicates to 191 [2018-11-07 12:42:51,899 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 12:42:51,900 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 12:42:51,900 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 12:42:51,900 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 12:42:51,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 12:42:51,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 12:42:51,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 12:42:51,901 INFO L87 Difference]: Start difference. First operand 12378 states and 18858 transitions. Second operand 7 states. [2018-11-07 12:42:55,924 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