java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 07:58:31,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 07:58:31,603 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 07:58:31,621 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 07:58:31,621 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 07:58:31,622 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 07:58:31,624 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 07:58:31,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 07:58:31,627 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 07:58:31,628 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 07:58:31,629 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 07:58:31,629 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 07:58:31,630 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 07:58:31,631 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 07:58:31,632 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 07:58:31,633 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 07:58:31,634 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 07:58:31,635 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 07:58:31,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 07:58:31,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 07:58:31,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 07:58:31,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 07:58:31,644 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 07:58:31,644 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 07:58:31,644 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 07:58:31,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 07:58:31,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 07:58:31,647 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 07:58:31,648 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 07:58:31,649 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 07:58:31,649 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 07:58:31,650 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 07:58:31,650 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 07:58:31,650 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 07:58:31,651 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 07:58:31,652 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 07:58:31,652 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 07:58:31,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 07:58:31,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 07:58:31,669 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 07:58:31,669 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 07:58:31,670 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 07:58:31,670 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 07:58:31,670 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 07:58:31,670 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 07:58:31,670 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 07:58:31,671 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 07:58:31,671 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 07:58:31,671 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 07:58:31,671 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 07:58:31,671 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 07:58:31,672 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 07:58:31,672 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 07:58:31,672 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 07:58:31,673 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 07:58:31,673 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 07:58:31,673 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 07:58:31,673 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 07:58:31,673 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 07:58:31,674 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 07:58:31,674 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 07:58:31,674 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 07:58:31,674 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 07:58:31,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 07:58:31,675 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 07:58:31,675 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 07:58:31,675 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 07:58:31,675 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 07:58:31,675 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 07:58:31,676 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 07:58:31,677 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 07:58:31,677 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 07:58:31,677 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 07:58:31,749 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 07:58:31,770 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 07:58:31,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 07:58:31,777 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 07:58:31,777 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 07:58:31,778 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label42_true-unreach-call.c [2018-10-27 07:58:31,848 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29cfab009/c17fef67576b4d4d9bc6e0f7f0314354/FLAGdc42ec3ab [2018-10-27 07:58:32,685 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 07:58:32,686 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label42_true-unreach-call.c [2018-10-27 07:58:32,731 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29cfab009/c17fef67576b4d4d9bc6e0f7f0314354/FLAGdc42ec3ab [2018-10-27 07:58:32,747 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29cfab009/c17fef67576b4d4d9bc6e0f7f0314354 [2018-10-27 07:58:32,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 07:58:32,761 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 07:58:32,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 07:58:32,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 07:58:32,770 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 07:58:32,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:58:32" (1/1) ... [2018-10-27 07:58:32,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a96e45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:32, skipping insertion in model container [2018-10-27 07:58:32,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 07:58:32" (1/1) ... [2018-10-27 07:58:32,788 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 07:58:32,986 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 07:58:34,374 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:58:34,379 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 07:58:35,111 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 07:58:35,148 INFO L193 MainTranslator]: Completed translation [2018-10-27 07:58:35,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35 WrapperNode [2018-10-27 07:58:35,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 07:58:35,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 07:58:35,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 07:58:35,150 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 07:58:35,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 07:58:35,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 07:58:35,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 07:58:35,713 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 07:58:35,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:35,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:36,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... [2018-10-27 07:58:36,071 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 07:58:36,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 07:58:36,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 07:58:36,072 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 07:58:36,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 07:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 07:58:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 07:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-27 07:58:36,146 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-27 07:58:36,146 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 07:58:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 07:58:36,148 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 07:58:36,148 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 07:58:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 07:58:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 07:58:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 07:58:36,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 07:58:36,149 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 07:58:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 07:58:47,162 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 07:58:47,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:58:47 BoogieIcfgContainer [2018-10-27 07:58:47,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 07:58:47,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 07:58:47,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 07:58:47,167 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 07:58:47,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 07:58:32" (1/3) ... [2018-10-27 07:58:47,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55414e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:58:47, skipping insertion in model container [2018-10-27 07:58:47,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 07:58:35" (2/3) ... [2018-10-27 07:58:47,169 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55414e5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 07:58:47, skipping insertion in model container [2018-10-27 07:58:47,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 07:58:47" (3/3) ... [2018-10-27 07:58:47,171 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label42_true-unreach-call.c [2018-10-27 07:58:47,181 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 07:58:47,193 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 07:58:47,210 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 07:58:47,257 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 07:58:47,257 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 07:58:47,257 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 07:58:47,257 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 07:58:47,257 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 07:58:47,257 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 07:58:47,258 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 07:58:47,258 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 07:58:47,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-27 07:58:47,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-10-27 07:58:47,315 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:58:47,316 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] [2018-10-27 07:58:47,318 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:58:47,323 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:58:47,324 INFO L82 PathProgramCache]: Analyzing trace with hash 1770921932, now seen corresponding path program 1 times [2018-10-27 07:58:47,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:58:47,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:58:47,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:58:47,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:58:47,384 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:58:47,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:58:47,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:58:47,912 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:58:47,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 07:58:47,914 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:58:47,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 07:58:47,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 07:58:47,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 07:58:47,938 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-10-27 07:59:04,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:59:04,236 INFO L93 Difference]: Finished difference Result 4105 states and 7669 transitions. [2018-10-27 07:59:04,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 07:59:04,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-10-27 07:59:04,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:59:04,297 INFO L225 Difference]: With dead ends: 4105 [2018-10-27 07:59:04,297 INFO L226 Difference]: Without dead ends: 2979 [2018-10-27 07:59:04,316 INFO L605 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 [2018-10-27 07:59:04,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2979 states. [2018-10-27 07:59:04,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2979 to 2849. [2018-10-27 07:59:04,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2849 states. [2018-10-27 07:59:04,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 5075 transitions. [2018-10-27 07:59:04,518 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 5075 transitions. Word has length 72 [2018-10-27 07:59:04,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:59:04,519 INFO L481 AbstractCegarLoop]: Abstraction has 2849 states and 5075 transitions. [2018-10-27 07:59:04,519 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 07:59:04,519 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 5075 transitions. [2018-10-27 07:59:04,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-27 07:59:04,535 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:04,536 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:59:04,536 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:04,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:04,536 INFO L82 PathProgramCache]: Analyzing trace with hash -646362735, now seen corresponding path program 1 times [2018-10-27 07:59:04,538 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:04,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:04,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:04,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:04,539 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:04,864 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:59:04,865 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:59:04,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:59:04,865 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:04,867 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:59:04,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:59:04,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:59:04,868 INFO L87 Difference]: Start difference. First operand 2849 states and 5075 transitions. Second operand 6 states. [2018-10-27 07:59:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:59:18,123 INFO L93 Difference]: Finished difference Result 8249 states and 15059 transitions. [2018-10-27 07:59:18,124 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 07:59:18,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-10-27 07:59:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:59:18,170 INFO L225 Difference]: With dead ends: 8249 [2018-10-27 07:59:18,171 INFO L226 Difference]: Without dead ends: 5406 [2018-10-27 07:59:18,185 INFO L605 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 [2018-10-27 07:59:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5406 states. [2018-10-27 07:59:18,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5406 to 5361. [2018-10-27 07:59:18,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5361 states. [2018-10-27 07:59:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5361 states to 5361 states and 8751 transitions. [2018-10-27 07:59:18,378 INFO L78 Accepts]: Start accepts. Automaton has 5361 states and 8751 transitions. Word has length 143 [2018-10-27 07:59:18,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:59:18,379 INFO L481 AbstractCegarLoop]: Abstraction has 5361 states and 8751 transitions. [2018-10-27 07:59:18,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:59:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 5361 states and 8751 transitions. [2018-10-27 07:59:18,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-27 07:59:18,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:18,388 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 07:59:18,388 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:18,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:18,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1327608448, now seen corresponding path program 1 times [2018-10-27 07:59:18,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:18,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:18,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:18,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:18,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 07:59:18,726 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 07:59:18,727 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 07:59:18,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:18,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:59:18,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:59:18,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:59:18,728 INFO L87 Difference]: Start difference. First operand 5361 states and 8751 transitions. Second operand 6 states. [2018-10-27 07:59:36,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 07:59:36,414 INFO L93 Difference]: Finished difference Result 18319 states and 30888 transitions. [2018-10-27 07:59:36,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 07:59:36,415 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-10-27 07:59:36,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 07:59:36,491 INFO L225 Difference]: With dead ends: 18319 [2018-10-27 07:59:36,492 INFO L226 Difference]: Without dead ends: 12964 [2018-10-27 07:59:36,534 INFO L605 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 [2018-10-27 07:59:36,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12964 states. [2018-10-27 07:59:37,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12964 to 12895. [2018-10-27 07:59:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12895 states. [2018-10-27 07:59:37,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12895 states to 12895 states and 19360 transitions. [2018-10-27 07:59:37,223 INFO L78 Accepts]: Start accepts. Automaton has 12895 states and 19360 transitions. Word has length 146 [2018-10-27 07:59:37,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 07:59:37,223 INFO L481 AbstractCegarLoop]: Abstraction has 12895 states and 19360 transitions. [2018-10-27 07:59:37,223 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 07:59:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 12895 states and 19360 transitions. [2018-10-27 07:59:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-10-27 07:59:37,239 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 07:59:37,239 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, 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] [2018-10-27 07:59:37,239 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 07:59:37,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:37,240 INFO L82 PathProgramCache]: Analyzing trace with hash 2095905532, now seen corresponding path program 1 times [2018-10-27 07:59:37,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 07:59:37,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:37,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 07:59:37,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 07:59:37,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 07:59:37,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 07:59:37,571 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 130 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 07:59:37,571 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 07:59:37,572 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 07:59:37,573 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-10-27 07:59:37,575 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3075], [3083], [3091], [3099], [3103], [3105], [3108], [3116], [3121], [3125], [3128], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3171], [3176], [3178], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-27 07:59:37,623 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 07:59:37,623 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 07:59:38,089 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 07:59:38,091 INFO L272 AbstractInterpreter]: Visited 86 different actions 86 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 07:59:38,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 07:59:38,104 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 07:59:38,642 INFO L227 lantSequenceWeakener]: Weakened 216 states. On average, predicates are now at 71.76% of their original sizes. [2018-10-27 07:59:38,643 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 07:59:38,791 INFO L415 sIntCurrentIteration]: We unified 226 AI predicates to 226 [2018-10-27 07:59:38,791 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 07:59:38,792 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 07:59:38,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-27 07:59:38,793 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 07:59:38,793 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 07:59:38,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 07:59:38,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 07:59:38,798 INFO L87 Difference]: Start difference. First operand 12895 states and 19360 transitions. Second operand 6 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown