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/Problem12_label32_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:41:49,554 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:41:49,557 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:41:49,574 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:41:49,574 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:41:49,576 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:41:49,577 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:41:49,579 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:41:49,581 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:41:49,584 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:41:49,586 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:41:49,586 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:41:49,587 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:41:49,589 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:41:49,590 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:41:49,598 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:41:49,599 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:41:49,604 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:41:49,607 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:41:49,609 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:41:49,610 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:41:49,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:41:49,616 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:41:49,616 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:41:49,617 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:41:49,618 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:41:49,619 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:41:49,619 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:41:49,621 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:41:49,622 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:41:49,622 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:41:49,624 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:41:49,625 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:41:49,625 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:41:49,626 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:41:49,627 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:41:49,627 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 08:41:49,646 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:41:49,647 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:41:49,648 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:41:49,648 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:41:49,648 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:41:49,648 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:41:49,648 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:41:49,649 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:41:49,649 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:41:49,649 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:41:49,649 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:41:49,649 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:41:49,649 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:41:49,650 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:41:49,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:41:49,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:41:49,651 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:41:49,651 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:41:49,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:41:49,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:41:49,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:41:49,652 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:41:49,652 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:41:49,652 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:41:49,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:41:49,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:41:49,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:41:49,653 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:41:49,653 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:41:49,653 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:41:49,653 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:41:49,653 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:41:49,654 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:41:49,654 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:41:49,654 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:41:49,654 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:41:49,702 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:41:49,714 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:41:49,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:41:49,719 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:41:49,719 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:41:49,720 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c [2018-11-07 08:41:49,783 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001b38887/9a49db3f3a0c4320994664072cca9376/FLAG6b92823b3 [2018-11-07 08:41:50,542 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:41:50,543 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label32_true-unreach-call.c [2018-11-07 08:41:50,574 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001b38887/9a49db3f3a0c4320994664072cca9376/FLAG6b92823b3 [2018-11-07 08:41:50,590 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/001b38887/9a49db3f3a0c4320994664072cca9376 [2018-11-07 08:41:50,602 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:41:50,605 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:41:50,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:41:50,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:41:50,612 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:41:50,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:41:50" (1/1) ... [2018-11-07 08:41:50,617 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 08:41:50, skipping insertion in model container [2018-11-07 08:41:50,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:41:50" (1/1) ... [2018-11-07 08:41:50,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:41:50,787 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:41:52,204 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:41:52,209 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:41:52,861 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:41:52,896 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:41:52,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52 WrapperNode [2018-11-07 08:41:52,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:41:52,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:41:52,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:41:52,899 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:41:52,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,217 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:41:53,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:41:53,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:41:53,229 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:41:53,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (1/1) ... [2018-11-07 08:41:53,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:41:53,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:41:53,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:41:53,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:41:53,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (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 08:41:53,573 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:41:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:41:53,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:41:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:41:53,574 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:41:53,574 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:41:53,575 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:41:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:41:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:41:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:41:53,576 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:41:53,576 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:41:53,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:41:53,578 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:41:53,578 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:42:02,458 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:42:02,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:42:02 BoogieIcfgContainer [2018-11-07 08:42:02,459 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:42:02,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:42:02,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:42:02,463 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:42:02,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:41:50" (1/3) ... [2018-11-07 08:42:02,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360808a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:42:02, skipping insertion in model container [2018-11-07 08:42:02,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:41:52" (2/3) ... [2018-11-07 08:42:02,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360808a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:42:02, skipping insertion in model container [2018-11-07 08:42:02,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:42:02" (3/3) ... [2018-11-07 08:42:02,467 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label32_true-unreach-call.c [2018-11-07 08:42:02,477 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:42:02,487 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:42:02,504 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:42:02,548 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:42:02,549 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:42:02,549 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:42:02,549 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:42:02,549 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:42:02,549 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:42:02,549 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:42:02,549 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:42:02,589 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 08:42:02,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-07 08:42:02,598 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:42:02,599 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] [2018-11-07 08:42:02,601 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:42:02,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:42:02,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1790779988, now seen corresponding path program 1 times [2018-11-07 08:42:02,611 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:42:02,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:42:02,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:42:02,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:42:02,662 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:42:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:42:03,139 WARN L179 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-11-07 08:42:03,166 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 08:42:03,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:42:03,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:42:03,170 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:42:03,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:42:03,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:42:03,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:42:03,221 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-11-07 08:42:15,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:42:15,025 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-11-07 08:42:15,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:42:15,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-11-07 08:42:15,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:42:15,065 INFO L225 Difference]: With dead ends: 3234 [2018-11-07 08:42:15,066 INFO L226 Difference]: Without dead ends: 2388 [2018-11-07 08:42:15,078 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:42:15,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-11-07 08:42:15,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-11-07 08:42:15,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-11-07 08:42:15,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-11-07 08:42:15,262 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 50 [2018-11-07 08:42:15,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:42:15,263 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-11-07 08:42:15,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:42:15,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-11-07 08:42:15,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-07 08:42:15,272 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:42:15,273 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:15,273 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:42:15,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:42:15,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1628117594, now seen corresponding path program 1 times [2018-11-07 08:42:15,274 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:42:15,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:42:15,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:42:15,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:42:15,275 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:42:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:42:15,668 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:42:15,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:42:15,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:42:15,669 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:42:15,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:42:15,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:42:15,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:42:15,672 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-11-07 08:42:28,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:42:28,280 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-11-07 08:42:28,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:42:28,283 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2018-11-07 08:42:28,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:42:28,337 INFO L225 Difference]: With dead ends: 9453 [2018-11-07 08:42:28,337 INFO L226 Difference]: Without dead ends: 7071 [2018-11-07 08:42:28,352 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:42:28,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-11-07 08:42:28,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-11-07 08:42:28,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-11-07 08:42:28,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-11-07 08:42:28,574 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 150 [2018-11-07 08:42:28,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:42:28,575 INFO L480 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-11-07 08:42:28,575 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:42:28,576 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-11-07 08:42:28,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-07 08:42:28,591 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:42:28,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:42:28,592 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:42:28,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:42:28,594 INFO L82 PathProgramCache]: Analyzing trace with hash 395335138, now seen corresponding path program 1 times [2018-11-07 08:42:28,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:42:28,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:42:28,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:42:28,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:42:28,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:42:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:42:29,067 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:42:29,336 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 08:42:29,336 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:42:29,336 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:42:29,338 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 201 with the following transitions: [2018-11-07 08:42:29,346 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], [2167], [2169], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 08:42:29,427 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:42:29,427 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:42:30,702 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:42:30,704 INFO L272 AbstractInterpreter]: Visited 157 different actions 308 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 08:42:30,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:42:30,751 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:42:31,348 INFO L227 lantSequenceWeakener]: Weakened 197 states. On average, predicates are now at 77.87% of their original sizes. [2018-11-07 08:42:31,352 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:42:32,140 INFO L415 sIntCurrentIteration]: We unified 199 AI predicates to 199 [2018-11-07 08:42:32,142 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:42:32,143 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:42:32,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-07 08:42:32,144 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:42:32,148 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:42:32,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:42:32,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:42:32,149 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 10 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown