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_label23_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:39:16,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:39:16,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:39:16,819 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:39:16,819 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:39:16,820 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:39:16,821 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:39:16,823 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:39:16,825 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:39:16,826 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:39:16,827 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:39:16,827 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:39:16,828 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:39:16,829 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:39:16,830 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:39:16,831 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:39:16,834 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:39:16,837 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:39:16,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:39:16,841 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:39:16,842 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:39:16,843 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:39:16,846 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:39:16,846 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:39:16,847 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:39:16,848 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:39:16,848 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:39:16,849 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:39:16,850 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:39:16,851 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:39:16,851 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:39:16,852 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:39:16,852 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:39:16,853 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:39:16,854 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:39:16,855 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:39:16,855 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 08:39:16,874 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:39:16,874 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:39:16,876 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:39:16,876 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:39:16,876 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:39:16,877 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:39:16,877 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:39:16,877 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:39:16,877 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:39:16,877 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:39:16,881 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:39:16,881 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:39:16,881 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:39:16,881 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:39:16,882 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:39:16,882 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:39:16,883 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:39:16,883 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:39:16,883 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:39:16,883 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:39:16,883 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:39:16,884 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:39:16,884 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:39:16,884 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:39:16,884 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:39:16,884 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:39:16,885 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:39:16,885 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:39:16,885 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:39:16,885 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:39:16,885 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:39:16,886 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:39:16,886 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:39:16,886 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:39:16,886 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:39:16,886 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:39:16,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:39:16,949 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:39:16,953 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:39:16,954 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:39:16,955 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:39:16,955 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label23_true-unreach-call.c [2018-11-07 08:39:17,020 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6db862136/bc8c184e10f342a3aa424204b86447fe/FLAG1a2a38810 [2018-11-07 08:39:17,776 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:39:17,777 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label23_true-unreach-call.c [2018-11-07 08:39:17,810 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6db862136/bc8c184e10f342a3aa424204b86447fe/FLAG1a2a38810 [2018-11-07 08:39:17,825 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6db862136/bc8c184e10f342a3aa424204b86447fe [2018-11-07 08:39:17,840 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:39:17,841 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:39:17,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:39:17,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:39:17,847 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:39:17,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:39:17" (1/1) ... [2018-11-07 08:39:17,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@163eabe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:17, skipping insertion in model container [2018-11-07 08:39:17,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:39:17" (1/1) ... [2018-11-07 08:39:17,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:39:18,027 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:39:19,406 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:39:19,411 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:39:20,037 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:39:20,073 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:39:20,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20 WrapperNode [2018-11-07 08:39:20,074 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:39:20,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:39:20,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:39:20,076 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:39:20,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:39:20,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:39:20,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:39:20,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:39:20,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,586 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,631 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,658 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (1/1) ... [2018-11-07 08:39:20,685 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:39:20,686 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:39:20,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:39:20,686 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:39:20,687 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (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 08:39:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:39:20,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:39:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:39:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 08:39:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 08:39:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 08:39:20,758 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 08:39:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 08:39:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 08:39:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:39:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:39:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:39:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:39:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:39:20,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:39:29,925 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:39:29,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:39:29 BoogieIcfgContainer [2018-11-07 08:39:29,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:39:29,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:39:29,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:39:29,931 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:39:29,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:39:17" (1/3) ... [2018-11-07 08:39:29,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e12776d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:39:29, skipping insertion in model container [2018-11-07 08:39:29,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:39:20" (2/3) ... [2018-11-07 08:39:29,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e12776d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:39:29, skipping insertion in model container [2018-11-07 08:39:29,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:39:29" (3/3) ... [2018-11-07 08:39:29,935 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label23_true-unreach-call.c [2018-11-07 08:39:29,945 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:39:29,956 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:39:29,975 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:39:30,149 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:39:30,149 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:39:30,149 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:39:30,149 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:39:30,149 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:39:30,150 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:39:30,150 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:39:30,150 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:39:30,219 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 08:39:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-07 08:39:30,227 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:39:30,228 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] [2018-11-07 08:39:30,230 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:39:30,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:39:30,237 INFO L82 PathProgramCache]: Analyzing trace with hash -868014412, now seen corresponding path program 1 times [2018-11-07 08:39:30,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:39:30,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:30,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:39:30,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:30,303 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:39:30,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:39:30,773 WARN L179 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:39:30,909 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 08:39:30,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:39:30,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:39:30,914 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:39:30,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:39:30,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:39:30,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:39:30,952 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 08:39:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:39:38,302 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 08:39:38,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:39:38,312 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2018-11-07 08:39:38,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:39:38,348 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 08:39:38,349 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 08:39:38,360 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:39:38,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 08:39:38,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 08:39:38,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 08:39:38,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3014 transitions. [2018-11-07 08:39:38,531 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3014 transitions. Word has length 42 [2018-11-07 08:39:38,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:39:38,532 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 3014 transitions. [2018-11-07 08:39:38,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:39:38,532 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3014 transitions. [2018-11-07 08:39:38,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-07 08:39:38,539 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:39:38,539 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:38,540 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:39:38,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:39:38,540 INFO L82 PathProgramCache]: Analyzing trace with hash -1913612190, now seen corresponding path program 1 times [2018-11-07 08:39:38,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:39:38,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:38,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:39:38,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:38,542 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:39:38,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:39:38,771 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:39:38,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:39:38,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:39:38,772 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:39:38,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:39:38,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:39:38,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:39:38,776 INFO L87 Difference]: Start difference. First operand 1604 states and 3014 transitions. Second operand 5 states. [2018-11-07 08:39:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:39:49,193 INFO L93 Difference]: Finished difference Result 4873 states and 9168 transitions. [2018-11-07 08:39:49,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:39:49,200 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2018-11-07 08:39:49,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:39:49,227 INFO L225 Difference]: With dead ends: 4873 [2018-11-07 08:39:49,227 INFO L226 Difference]: Without dead ends: 3275 [2018-11-07 08:39:49,233 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:39:49,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-11-07 08:39:49,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-11-07 08:39:49,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-11-07 08:39:49,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5443 transitions. [2018-11-07 08:39:49,367 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5443 transitions. Word has length 112 [2018-11-07 08:39:49,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:39:49,368 INFO L480 AbstractCegarLoop]: Abstraction has 3241 states and 5443 transitions. [2018-11-07 08:39:49,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:39:49,368 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5443 transitions. [2018-11-07 08:39:49,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-07 08:39:49,377 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:39:49,377 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:49,377 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:39:49,383 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:39:49,383 INFO L82 PathProgramCache]: Analyzing trace with hash -904578762, now seen corresponding path program 1 times [2018-11-07 08:39:49,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:39:49,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:49,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:39:49,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:49,386 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:39:49,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:39:49,790 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 19 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:39:49,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:39:49,790 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:39:49,791 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-11-07 08:39:49,793 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], [2103], [2105], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [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], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 08:39:49,837 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:39:49,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:39:50,482 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:39:50,483 INFO L272 AbstractInterpreter]: Visited 84 different actions 160 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 08:39:50,528 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:39:50,531 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:39:50,531 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:39:50,531 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:39:50,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:39:50,546 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:39:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:39:50,626 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:39:50,814 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:39:50,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:39:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:39:51,148 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:39:51,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2018-11-07 08:39:51,149 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:39:51,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:39:51,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:39:51,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:39:51,151 INFO L87 Difference]: Start difference. First operand 3241 states and 5443 transitions. Second operand 3 states. [2018-11-07 08:39:57,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:39:57,461 INFO L93 Difference]: Finished difference Result 9583 states and 16414 transitions. [2018-11-07 08:39:57,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:39:57,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2018-11-07 08:39:57,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:39:57,509 INFO L225 Difference]: With dead ends: 9583 [2018-11-07 08:39:57,509 INFO L226 Difference]: Without dead ends: 6348 [2018-11-07 08:39:57,526 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 236 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:39:57,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6348 states. [2018-11-07 08:39:57,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6348 to 6348. [2018-11-07 08:39:57,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6348 states. [2018-11-07 08:39:57,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6348 states to 6348 states and 9511 transitions. [2018-11-07 08:39:57,739 INFO L78 Accepts]: Start accepts. Automaton has 6348 states and 9511 transitions. Word has length 118 [2018-11-07 08:39:57,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:39:57,740 INFO L480 AbstractCegarLoop]: Abstraction has 6348 states and 9511 transitions. [2018-11-07 08:39:57,740 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:39:57,740 INFO L276 IsEmpty]: Start isEmpty. Operand 6348 states and 9511 transitions. [2018-11-07 08:39:57,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-07 08:39:57,744 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:39:57,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:39:57,744 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:39:57,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:39:57,745 INFO L82 PathProgramCache]: Analyzing trace with hash 729480887, now seen corresponding path program 1 times [2018-11-07 08:39:57,745 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:39:57,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:57,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:39:57,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:39:57,746 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:39:57,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:39:58,100 WARN L179 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:39:58,515 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:39:58,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:39:58,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:39:58,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:39:58,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:39:58,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:39:58,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:39:58,518 INFO L87 Difference]: Start difference. First operand 6348 states and 9511 transitions. Second operand 6 states. [2018-11-07 08:40:07,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:40:07,065 INFO L93 Difference]: Finished difference Result 15974 states and 23466 transitions. [2018-11-07 08:40:07,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:40:07,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-11-07 08:40:07,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:40:07,119 INFO L225 Difference]: With dead ends: 15974 [2018-11-07 08:40:07,119 INFO L226 Difference]: Without dead ends: 9632 [2018-11-07 08:40:07,145 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:40:07,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9632 states. [2018-11-07 08:40:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9632 to 9612. [2018-11-07 08:40:07,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9612 states. [2018-11-07 08:40:07,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9612 states to 9612 states and 13079 transitions. [2018-11-07 08:40:07,393 INFO L78 Accepts]: Start accepts. Automaton has 9612 states and 13079 transitions. Word has length 127 [2018-11-07 08:40:07,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:40:07,393 INFO L480 AbstractCegarLoop]: Abstraction has 9612 states and 13079 transitions. [2018-11-07 08:40:07,394 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:40:07,395 INFO L276 IsEmpty]: Start isEmpty. Operand 9612 states and 13079 transitions. [2018-11-07 08:40:07,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 08:40:07,397 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:40:07,398 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:07,398 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:40:07,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:40:07,398 INFO L82 PathProgramCache]: Analyzing trace with hash 100502571, now seen corresponding path program 1 times [2018-11-07 08:40:07,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:40:07,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:07,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:40:07,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:07,403 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:40:07,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:40:07,710 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:40:08,062 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:40:08,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:40:08,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:40:08,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:40:08,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:40:08,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:40:08,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:40:08,065 INFO L87 Difference]: Start difference. First operand 9612 states and 13079 transitions. Second operand 6 states. [2018-11-07 08:40:18,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:40:18,294 INFO L93 Difference]: Finished difference Result 26236 states and 36786 transitions. [2018-11-07 08:40:18,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:40:18,301 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-11-07 08:40:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:40:18,390 INFO L225 Difference]: With dead ends: 26236 [2018-11-07 08:40:18,391 INFO L226 Difference]: Without dead ends: 16630 [2018-11-07 08:40:18,430 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:40:18,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16630 states. [2018-11-07 08:40:18,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16630 to 16385. [2018-11-07 08:40:18,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16385 states. [2018-11-07 08:40:18,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16385 states to 16385 states and 21996 transitions. [2018-11-07 08:40:18,957 INFO L78 Accepts]: Start accepts. Automaton has 16385 states and 21996 transitions. Word has length 149 [2018-11-07 08:40:18,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:40:18,957 INFO L480 AbstractCegarLoop]: Abstraction has 16385 states and 21996 transitions. [2018-11-07 08:40:18,957 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:40:18,958 INFO L276 IsEmpty]: Start isEmpty. Operand 16385 states and 21996 transitions. [2018-11-07 08:40:18,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-11-07 08:40:18,962 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:40:18,963 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:18,963 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:40:18,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:40:18,963 INFO L82 PathProgramCache]: Analyzing trace with hash -628961745, now seen corresponding path program 1 times [2018-11-07 08:40:18,964 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:40:18,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:18,965 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:40:18,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:18,965 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:40:19,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:40:19,220 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:40:19,220 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:40:19,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:40:19,221 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:40:19,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:40:19,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:40:19,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:40:19,222 INFO L87 Difference]: Start difference. First operand 16385 states and 21996 transitions. Second operand 6 states. [2018-11-07 08:40:28,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:40:28,914 INFO L93 Difference]: Finished difference Result 43155 states and 61960 transitions. [2018-11-07 08:40:28,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:40:28,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-11-07 08:40:28,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:40:29,030 INFO L225 Difference]: With dead ends: 43155 [2018-11-07 08:40:29,031 INFO L226 Difference]: Without dead ends: 26776 [2018-11-07 08:40:29,363 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:40:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26776 states. [2018-11-07 08:40:29,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26776 to 26469. [2018-11-07 08:40:29,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26469 states. [2018-11-07 08:40:29,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26469 states to 26469 states and 35507 transitions. [2018-11-07 08:40:29,921 INFO L78 Accepts]: Start accepts. Automaton has 26469 states and 35507 transitions. Word has length 163 [2018-11-07 08:40:29,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:40:29,921 INFO L480 AbstractCegarLoop]: Abstraction has 26469 states and 35507 transitions. [2018-11-07 08:40:29,922 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:40:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 26469 states and 35507 transitions. [2018-11-07 08:40:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-11-07 08:40:29,926 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:40:29,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:29,926 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:40:29,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:40:29,927 INFO L82 PathProgramCache]: Analyzing trace with hash -2070879037, now seen corresponding path program 1 times [2018-11-07 08:40:29,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:40:29,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:29,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:40:29,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:29,928 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:40:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:40:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:40:30,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:40:30,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 08:40:30,250 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:40:30,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:40:30,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:40:30,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:40:30,251 INFO L87 Difference]: Start difference. First operand 26469 states and 35507 transitions. Second operand 6 states. [2018-11-07 08:40:45,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:40:45,117 INFO L93 Difference]: Finished difference Result 103822 states and 153829 transitions. [2018-11-07 08:40:45,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 08:40:45,118 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 169 [2018-11-07 08:40:45,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:40:45,415 INFO L225 Difference]: With dead ends: 103822 [2018-11-07 08:40:45,415 INFO L226 Difference]: Without dead ends: 77359 [2018-11-07 08:40:45,531 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:40:45,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77359 states. [2018-11-07 08:40:46,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77359 to 77208. [2018-11-07 08:40:46,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77208 states. [2018-11-07 08:40:47,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77208 states to 77208 states and 105846 transitions. [2018-11-07 08:40:47,201 INFO L78 Accepts]: Start accepts. Automaton has 77208 states and 105846 transitions. Word has length 169 [2018-11-07 08:40:47,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:40:47,202 INFO L480 AbstractCegarLoop]: Abstraction has 77208 states and 105846 transitions. [2018-11-07 08:40:47,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:40:47,202 INFO L276 IsEmpty]: Start isEmpty. Operand 77208 states and 105846 transitions. [2018-11-07 08:40:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-11-07 08:40:47,205 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:40:47,206 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:40:47,206 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:40:47,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:40:47,206 INFO L82 PathProgramCache]: Analyzing trace with hash 899913922, now seen corresponding path program 1 times [2018-11-07 08:40:47,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:40:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:47,207 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:40:47,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:40:47,208 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:40:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:40:47,494 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:40:47,742 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 08:40:47,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:40:47,743 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:40:47,743 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-11-07 08:40:47,744 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], [2103], [2105], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [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 08:40:47,759 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:40:47,760 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:40:49,303 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:40:49,303 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 08:40:49,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:40:49,344 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:40:49,874 INFO L227 lantSequenceWeakener]: Weakened 189 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-07 08:40:49,874 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:40:50,603 INFO L415 sIntCurrentIteration]: We unified 191 AI predicates to 191 [2018-11-07 08:40:50,604 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:40:50,605 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:40:50,605 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [4] total 12 [2018-11-07 08:40:50,606 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:40:50,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:40:50,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:40:50,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:40:50,607 INFO L87 Difference]: Start difference. First operand 77208 states and 105846 transitions. Second operand 10 states. Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown