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/Problem18_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:47:33,819 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:47:33,821 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:47:33,836 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:47:33,837 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:47:33,838 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:47:33,839 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:47:33,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:47:33,843 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:47:33,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:47:33,846 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:47:33,847 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:47:33,848 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:47:33,849 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:47:33,850 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:47:33,853 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:47:33,854 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:47:33,864 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:47:33,867 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:47:33,868 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:47:33,869 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:47:33,870 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:47:33,873 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:47:33,873 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:47:33,873 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:47:33,874 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:47:33,875 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:47:33,876 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:47:33,876 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:47:33,877 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:47:33,878 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:47:33,878 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:47:33,878 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:47:33,879 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:47:33,880 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:47:33,880 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:47:33,881 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 08:47:33,907 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:47:33,907 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:47:33,908 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:47:33,908 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:47:33,909 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:47:33,909 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:47:33,909 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:47:33,909 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:47:33,909 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:47:33,910 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:47:33,910 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:47:33,910 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:47:33,911 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:47:33,911 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:47:33,912 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:47:33,912 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:47:33,912 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:47:33,912 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:47:33,912 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:47:33,913 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:47:33,914 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:47:33,914 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:47:33,915 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:47:33,915 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:47:33,915 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:47:33,915 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:47:33,915 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:47:33,916 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:47:33,916 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:47:33,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:47:33,916 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:47:33,917 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:47:33,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:47:33,917 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:47:33,917 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:47:33,917 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:47:33,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:47:33,986 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:47:33,990 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:47:33,992 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:47:33,992 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:47:33,993 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label51_true-unreach-call.c [2018-10-27 08:47:34,059 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/073f36ea0/5226d6fdb1424779a686ffcd5eb3a5bb/FLAG831c1a331 [2018-10-27 08:47:34,806 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:47:34,807 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label51_true-unreach-call.c [2018-10-27 08:47:34,834 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/073f36ea0/5226d6fdb1424779a686ffcd5eb3a5bb/FLAG831c1a331 [2018-10-27 08:47:34,853 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/073f36ea0/5226d6fdb1424779a686ffcd5eb3a5bb [2018-10-27 08:47:34,864 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:47:34,866 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:47:34,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:47:34,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:47:34,872 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:47:34,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:47:34" (1/1) ... [2018-10-27 08:47:34,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1986afa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:34, skipping insertion in model container [2018-10-27 08:47:34,878 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:47:34" (1/1) ... [2018-10-27 08:47:34,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:47:35,024 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:47:36,106 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:47:36,111 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:47:36,541 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:47:36,568 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:47:36,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36 WrapperNode [2018-10-27 08:47:36,569 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:47:36,570 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:47:36,570 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:47:36,571 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:47:36,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:36,654 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:36,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:47:36,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:47:36,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:47:36,984 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:47:37,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,124 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,162 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (1/1) ... [2018-10-27 08:47:37,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:47:37,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:47:37,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:47:37,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:47:37,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (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 08:47:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:47:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:47:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:47:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:47:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:47:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:47:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:47:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:47:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:47:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:47:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:47:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:47:45,805 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:47:45,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:47:45 BoogieIcfgContainer [2018-10-27 08:47:45,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:47:45,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:47:45,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:47:45,810 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:47:45,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:47:34" (1/3) ... [2018-10-27 08:47:45,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e25a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:47:45, skipping insertion in model container [2018-10-27 08:47:45,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:47:36" (2/3) ... [2018-10-27 08:47:45,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76e25a36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:47:45, skipping insertion in model container [2018-10-27 08:47:45,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:47:45" (3/3) ... [2018-10-27 08:47:45,814 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label51_true-unreach-call.c [2018-10-27 08:47:45,825 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:47:45,835 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:47:45,853 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:47:45,898 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:47:45,898 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:47:45,899 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:47:45,899 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:47:45,899 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:47:45,899 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:47:45,899 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:47:45,900 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:47:45,937 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 08:47:45,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-10-27 08:47:45,948 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:47:45,950 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] [2018-10-27 08:47:45,952 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:47:45,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:47:45,959 INFO L82 PathProgramCache]: Analyzing trace with hash -198133833, now seen corresponding path program 1 times [2018-10-27 08:47:45,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:47:46,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:47:46,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:47:46,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:47:46,011 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:47:46,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:47:46,524 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-27 08:47:46,549 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 08:47:46,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:47:46,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:47:46,552 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:47:46,559 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:47:46,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:47:46,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:47:46,582 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-10-27 08:47:57,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:47:57,254 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-10-27 08:47:57,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:47:57,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-10-27 08:47:57,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:47:57,294 INFO L225 Difference]: With dead ends: 2974 [2018-10-27 08:47:57,294 INFO L226 Difference]: Without dead ends: 2193 [2018-10-27 08:47:57,306 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 08:47:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-10-27 08:47:57,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-10-27 08:47:57,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-10-27 08:47:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3506 transitions. [2018-10-27 08:47:57,487 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3506 transitions. Word has length 67 [2018-10-27 08:47:57,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:47:57,488 INFO L481 AbstractCegarLoop]: Abstraction has 2193 states and 3506 transitions. [2018-10-27 08:47:57,488 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:47:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3506 transitions. [2018-10-27 08:47:57,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-10-27 08:47:57,501 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:47:57,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:47:57,502 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:47:57,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:47:57,503 INFO L82 PathProgramCache]: Analyzing trace with hash 228041992, now seen corresponding path program 1 times [2018-10-27 08:47:57,503 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:47:57,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:47:57,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:47:57,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:47:57,506 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:47:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:47:57,794 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:47:57,794 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:47:57,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 08:47:57,794 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:47:57,797 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 08:47:57,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 08:47:57,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 08:47:57,800 INFO L87 Difference]: Start difference. First operand 2193 states and 3506 transitions. Second operand 5 states. [2018-10-27 08:48:06,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:48:06,931 INFO L93 Difference]: Finished difference Result 6600 states and 10738 transitions. [2018-10-27 08:48:06,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:48:06,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2018-10-27 08:48:06,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:48:06,968 INFO L225 Difference]: With dead ends: 6600 [2018-10-27 08:48:06,968 INFO L226 Difference]: Without dead ends: 4413 [2018-10-27 08:48:06,976 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 08:48:06,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-10-27 08:48:07,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-10-27 08:48:07,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-10-27 08:48:07,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6712 transitions. [2018-10-27 08:48:07,121 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6712 transitions. Word has length 137 [2018-10-27 08:48:07,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:48:07,122 INFO L481 AbstractCegarLoop]: Abstraction has 4378 states and 6712 transitions. [2018-10-27 08:48:07,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 08:48:07,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6712 transitions. [2018-10-27 08:48:07,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-10-27 08:48:07,127 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:48:07,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:07,128 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:48:07,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:48:07,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1314809025, now seen corresponding path program 1 times [2018-10-27 08:48:07,129 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:48:07,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:48:07,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:48:07,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:48:07,130 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:48:07,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:48:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:48:07,371 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:48:07,371 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:48:07,371 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:48:07,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:48:07,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:48:07,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:48:07,373 INFO L87 Difference]: Start difference. First operand 4378 states and 6712 transitions. Second operand 6 states. [2018-10-27 08:48:15,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:48:15,946 INFO L93 Difference]: Finished difference Result 15364 states and 24184 transitions. [2018-10-27 08:48:15,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:48:15,950 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-10-27 08:48:15,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:48:16,004 INFO L225 Difference]: With dead ends: 15364 [2018-10-27 08:48:16,005 INFO L226 Difference]: Without dead ends: 10992 [2018-10-27 08:48:16,029 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 08:48:16,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10992 states. [2018-10-27 08:48:16,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10992 to 10926. [2018-10-27 08:48:16,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10926 states. [2018-10-27 08:48:16,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10926 states to 10926 states and 15805 transitions. [2018-10-27 08:48:16,304 INFO L78 Accepts]: Start accepts. Automaton has 10926 states and 15805 transitions. Word has length 164 [2018-10-27 08:48:16,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:48:16,304 INFO L481 AbstractCegarLoop]: Abstraction has 10926 states and 15805 transitions. [2018-10-27 08:48:16,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:48:16,307 INFO L276 IsEmpty]: Start isEmpty. Operand 10926 states and 15805 transitions. [2018-10-27 08:48:16,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-10-27 08:48:16,311 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:48:16,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:48:16,312 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:48:16,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:48:16,313 INFO L82 PathProgramCache]: Analyzing trace with hash -446989259, now seen corresponding path program 1 times [2018-10-27 08:48:16,313 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:48:16,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:48:16,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:48:16,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:48:16,314 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:48:16,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:48:16,564 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:48:16,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:48:16,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:48:16,564 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:48:16,565 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:48:16,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:48:16,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:48:16,566 INFO L87 Difference]: Start difference. First operand 10926 states and 15805 transitions. Second operand 4 states. [2018-10-27 08:48:23,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:48:23,523 INFO L93 Difference]: Finished difference Result 26109 states and 38076 transitions. [2018-10-27 08:48:23,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:48:23,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2018-10-27 08:48:23,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:48:23,597 INFO L225 Difference]: With dead ends: 26109 [2018-10-27 08:48:23,598 INFO L226 Difference]: Without dead ends: 15189 [2018-10-27 08:48:23,642 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:48:23,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15189 states. [2018-10-27 08:48:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15189 to 15183. [2018-10-27 08:48:24,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15183 states. [2018-10-27 08:48:24,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 19641 transitions. [2018-10-27 08:48:24,121 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 19641 transitions. Word has length 174 [2018-10-27 08:48:24,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:48:24,122 INFO L481 AbstractCegarLoop]: Abstraction has 15183 states and 19641 transitions. [2018-10-27 08:48:24,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:48:24,122 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 19641 transitions. [2018-10-27 08:48:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-10-27 08:48:24,129 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:48:24,130 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, 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] [2018-10-27 08:48:24,130 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:48:24,130 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:48:24,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1032798605, now seen corresponding path program 1 times [2018-10-27 08:48:24,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:48:24,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:48:24,132 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:48:24,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:48:24,132 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:48:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:48:24,443 WARN L179 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:48:24,876 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 120 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:48:24,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:48:24,876 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:48:24,877 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-10-27 08:48:24,882 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2059], [2061], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:48:24,975 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:48:24,976 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:48:25,444 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:48:25,446 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 08:48:25,489 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:48:25,489 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:48:26,046 INFO L227 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 78.28% of their original sizes. [2018-10-27 08:48:26,046 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:48:26,292 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-10-27 08:48:26,292 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:48:26,293 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:48:26,293 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-27 08:48:26,293 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:48:26,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:48:26,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:48:26,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:48:26,297 INFO L87 Difference]: Start difference. First operand 15183 states and 19641 transitions. Second operand 6 states. [2018-10-27 08:50:29,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:50:29,075 INFO L93 Difference]: Finished difference Result 31065 states and 40142 transitions. [2018-10-27 08:50:29,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:50:29,075 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2018-10-27 08:50:29,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:50:29,114 INFO L225 Difference]: With dead ends: 31065 [2018-10-27 08:50:29,115 INFO L226 Difference]: Without dead ends: 15888 [2018-10-27 08:50:29,144 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 08:50:29,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15888 states. [2018-10-27 08:50:29,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15888 to 15886. [2018-10-27 08:50:29,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15886 states. [2018-10-27 08:50:29,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15886 states to 15886 states and 20353 transitions. [2018-10-27 08:50:29,428 INFO L78 Accepts]: Start accepts. Automaton has 15886 states and 20353 transitions. Word has length 239 [2018-10-27 08:50:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:50:29,428 INFO L481 AbstractCegarLoop]: Abstraction has 15886 states and 20353 transitions. [2018-10-27 08:50:29,429 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:50:29,429 INFO L276 IsEmpty]: Start isEmpty. Operand 15886 states and 20353 transitions. [2018-10-27 08:50:29,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2018-10-27 08:50:29,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:50:29,440 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:50:29,441 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:50:29,441 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:50:29,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1020425839, now seen corresponding path program 1 times [2018-10-27 08:50:29,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:50:29,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:50:29,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:50:29,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:50:29,446 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:50:29,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:50:29,970 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 08:50:30,184 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 08:50:30,403 WARN L179 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 08:50:30,722 WARN L179 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-27 08:50:31,088 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 239 proven. 185 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:50:31,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:50:31,088 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:50:31,088 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 427 with the following transitions: [2018-10-27 08:50:31,089 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2059], [2061], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2216], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [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], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:50:31,097 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:50:31,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:50:31,368 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:50:31,369 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 08:50:31,407 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:50:31,407 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:50:31,844 INFO L227 lantSequenceWeakener]: Weakened 423 states. On average, predicates are now at 77.88% of their original sizes. [2018-10-27 08:50:31,844 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:50:32,135 INFO L415 sIntCurrentIteration]: We unified 425 AI predicates to 425 [2018-10-27 08:50:32,136 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:50:32,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:50:32,136 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-10-27 08:50:32,136 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:50:32,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:50:32,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:50:32,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:50:32,138 INFO L87 Difference]: Start difference. First operand 15886 states and 20353 transitions. Second operand 10 states. [2018-10-27 08:51:23,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:51:23,184 INFO L93 Difference]: Finished difference Result 33183 states and 42603 transitions. [2018-10-27 08:51:23,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 08:51:23,184 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 426 [2018-10-27 08:51:23,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:51:23,222 INFO L225 Difference]: With dead ends: 33183 [2018-10-27 08:51:23,222 INFO L226 Difference]: Without dead ends: 18006 [2018-10-27 08:51:23,239 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 434 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-10-27 08:51:23,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18006 states. [2018-10-27 08:51:23,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18006 to 18001. [2018-10-27 08:51:23,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18001 states. [2018-10-27 08:51:23,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18001 states to 18001 states and 22517 transitions. [2018-10-27 08:51:23,518 INFO L78 Accepts]: Start accepts. Automaton has 18001 states and 22517 transitions. Word has length 426 [2018-10-27 08:51:23,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:51:23,520 INFO L481 AbstractCegarLoop]: Abstraction has 18001 states and 22517 transitions. [2018-10-27 08:51:23,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 08:51:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 18001 states and 22517 transitions. [2018-10-27 08:51:23,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2018-10-27 08:51:23,561 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:51:23,562 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:23,563 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:51:23,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:51:23,563 INFO L82 PathProgramCache]: Analyzing trace with hash -920710077, now seen corresponding path program 1 times [2018-10-27 08:51:23,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:51:23,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:51:23,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:51:23,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:51:23,565 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:51:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:51:24,378 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:51:25,892 INFO L134 CoverageAnalysis]: Checked inductivity of 642 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2018-10-27 08:51:25,892 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:51:25,893 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:51:25,893 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 981 with the following transitions: [2018-10-27 08:51:25,894 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [795], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2059], [2061], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2144], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [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], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:51:25,908 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:51:25,908 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-27 08:51:26,208 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 08:51:26,209 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 08:51:26,210 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 08:51:26,210 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:51:26,210 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 08:51:26,220 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:51:26,221 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:51:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:51:26,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:51:26,576 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 08:51:26,777 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 08:51:26,778 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:51:26,783 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:51:26,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:51:26 BoogieIcfgContainer [2018-10-27 08:51:26,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:51:26,784 INFO L168 Benchmark]: Toolchain (without parser) took 231919.35 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -530.6 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 08:51:26,785 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:51:26,786 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1702.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:51:26,787 INFO L168 Benchmark]: Boogie Procedure Inliner took 413.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -918.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2018-10-27 08:51:26,788 INFO L168 Benchmark]: Boogie Preprocessor took 256.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-27 08:51:26,789 INFO L168 Benchmark]: RCFGBuilder took 8564.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 499.0 MB). Peak memory consumption was 499.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:51:26,789 INFO L168 Benchmark]: TraceAbstraction took 220976.53 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -273.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-27 08:51:26,795 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1702.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 413.48 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.9 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -918.3 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 256.81 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8564.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 499.0 MB). Peak memory consumption was 499.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220976.53 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -273.5 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was analyzing trace of length 981 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 4 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 220.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 209.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3616 SDtfs, 15000 SDslu, 1162 SDs, 0 SdLazy, 25123 SolverSat, 5419 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 161.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 703 GetRequests, 662 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18001occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.2s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9976405237274804 AbsIntWeakeningRatio, 0.08748114630467571 AbsIntAvgWeakeningVarsNumRemoved, 16.502262443438916 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 114 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1207 NumberOfCodeBlocks, 1207 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1201 ConstructedInterpolants, 0 QuantifiedInterpolants, 1855542 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 549/806 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown