java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label33_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 18:49:22,843 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 18:49:22,845 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 18:49:22,857 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 18:49:22,858 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 18:49:22,859 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 18:49:22,860 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 18:49:22,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 18:49:22,864 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 18:49:22,864 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 18:49:22,865 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 18:49:22,866 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 18:49:22,867 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 18:49:22,868 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 18:49:22,869 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 18:49:22,870 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 18:49:22,870 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 18:49:22,872 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 18:49:22,874 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 18:49:22,876 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 18:49:22,877 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 18:49:22,878 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 18:49:22,881 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 18:49:22,881 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 18:49:22,881 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 18:49:22,882 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 18:49:22,883 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 18:49:22,884 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 18:49:22,885 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 18:49:22,886 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 18:49:22,886 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 18:49:22,887 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 18:49:22,887 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 18:49:22,888 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 18:49:22,889 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 18:49:22,889 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 18:49:22,890 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-12 18:49:22,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 18:49:22,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 18:49:22,917 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 18:49:22,917 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 18:49:22,917 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 18:49:22,917 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 18:49:22,917 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 18:49:22,918 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 18:49:22,918 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 18:49:22,918 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 18:49:22,918 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 18:49:22,918 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 18:49:22,919 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 18:49:22,920 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 18:49:22,920 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 18:49:22,920 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 18:49:22,921 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 18:49:22,921 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 18:49:22,921 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 18:49:22,921 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 18:49:22,921 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 18:49:22,922 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 18:49:22,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 18:49:22,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 18:49:22,924 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 18:49:22,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 18:49:22,924 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 18:49:22,924 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 18:49:22,925 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 18:49:22,925 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 18:49:22,925 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 18:49:22,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 18:49:22,926 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 18:49:22,926 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 18:49:22,926 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 18:49:22,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 18:49:23,008 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 18:49:23,012 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 18:49:23,014 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 18:49:23,015 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 18:49:23,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label33_true-unreach-call.c [2018-11-12 18:49:23,080 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885fda0ad/d2042576426341599c43319ee9e9f81a/FLAG96afbdf09 [2018-11-12 18:49:23,793 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 18:49:23,794 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label33_true-unreach-call.c [2018-11-12 18:49:23,831 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885fda0ad/d2042576426341599c43319ee9e9f81a/FLAG96afbdf09 [2018-11-12 18:49:23,853 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/885fda0ad/d2042576426341599c43319ee9e9f81a [2018-11-12 18:49:23,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 18:49:23,868 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 18:49:23,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 18:49:23,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 18:49:23,876 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 18:49:23,877 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:49:23" (1/1) ... [2018-11-12 18:49:23,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dafbbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:23, skipping insertion in model container [2018-11-12 18:49:23,880 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 06:49:23" (1/1) ... [2018-11-12 18:49:23,891 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 18:49:24,051 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 18:49:25,593 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:49:25,599 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 18:49:26,287 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 18:49:26,317 INFO L193 MainTranslator]: Completed translation [2018-11-12 18:49:26,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26 WrapperNode [2018-11-12 18:49:26,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 18:49:26,319 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 18:49:26,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 18:49:26,320 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 18:49:26,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 18:49:26,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 18:49:26,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 18:49:26,658 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 18:49:26,672 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (1/1) ... [2018-11-12 18:49:26,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 18:49:26,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 18:49:26,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 18:49:26,949 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 18:49:26,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (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 [2018-11-12 18:49:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 18:49:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 18:49:27,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 18:49:27,023 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-12 18:49:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-12 18:49:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 18:49:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 18:49:27,024 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 18:49:27,024 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 18:49:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 18:49:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 18:49:27,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 18:49:27,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 18:49:27,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 18:49:27,026 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 18:49:36,646 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 18:49:36,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:49:36 BoogieIcfgContainer [2018-11-12 18:49:36,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 18:49:36,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 18:49:36,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 18:49:36,652 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 18:49:36,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 06:49:23" (1/3) ... [2018-11-12 18:49:36,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49dd7061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:49:36, skipping insertion in model container [2018-11-12 18:49:36,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 06:49:26" (2/3) ... [2018-11-12 18:49:36,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49dd7061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 06:49:36, skipping insertion in model container [2018-11-12 18:49:36,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 06:49:36" (3/3) ... [2018-11-12 18:49:36,656 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label33_true-unreach-call.c [2018-11-12 18:49:36,666 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 18:49:36,676 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 18:49:36,694 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 18:49:36,741 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 18:49:36,742 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 18:49:36,742 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 18:49:36,742 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 18:49:36,742 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 18:49:36,742 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 18:49:36,743 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 18:49:36,743 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 18:49:36,882 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-12 18:49:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-12 18:49:36,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:49:36,906 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] [2018-11-12 18:49:36,909 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:49:36,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:49:36,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1505698572, now seen corresponding path program 1 times [2018-11-12 18:49:36,932 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:49:36,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:49:36,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:49:36,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:49:36,985 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:49:37,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:49:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:49:37,510 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:49:37,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:49:37,511 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:49:37,517 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:49:37,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:49:37,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:49:37,540 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-11-12 18:49:50,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:49:50,217 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-11-12 18:49:50,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:49:50,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 56 [2018-11-12 18:49:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:49:50,259 INFO L225 Difference]: With dead ends: 3234 [2018-11-12 18:49:50,260 INFO L226 Difference]: Without dead ends: 2388 [2018-11-12 18:49:50,272 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:49:50,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-11-12 18:49:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-11-12 18:49:50,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-11-12 18:49:50,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-11-12 18:49:50,475 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 56 [2018-11-12 18:49:50,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:49:50,476 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-11-12 18:49:50,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:49:50,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-11-12 18:49:50,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-12 18:49:50,492 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:49:50,493 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:49:50,493 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:49:50,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:49:50,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1233616770, now seen corresponding path program 1 times [2018-11-12 18:49:50,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:49:50,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:49:50,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:49:50,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:49:50,497 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:49:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:49:50,885 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:49:50,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:49:50,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 18:49:50,886 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:49:50,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 18:49:50,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 18:49:50,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 18:49:50,889 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-11-12 18:50:04,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:50:04,498 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-11-12 18:50:04,501 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 18:50:04,501 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-11-12 18:50:04,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:50:04,548 INFO L225 Difference]: With dead ends: 9453 [2018-11-12 18:50:04,548 INFO L226 Difference]: Without dead ends: 7071 [2018-11-12 18:50:04,561 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 18:50:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-11-12 18:50:04,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-11-12 18:50:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-11-12 18:50:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-11-12 18:50:04,768 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 156 [2018-11-12 18:50:04,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:50:04,769 INFO L480 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-11-12 18:50:04,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 18:50:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-11-12 18:50:04,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-11-12 18:50:04,783 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:50:04,785 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 18:50:04,786 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:50:04,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:50:04,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1668109382, now seen corresponding path program 1 times [2018-11-12 18:50:04,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:50:04,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:50:04,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:50:04,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:50:04,788 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:50:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:50:05,043 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 18:50:05,044 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 18:50:05,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-12 18:50:05,044 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:50:05,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-12 18:50:05,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-12 18:50:05,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-12 18:50:05,046 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 4 states. [2018-11-12 18:50:12,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:50:12,834 INFO L93 Difference]: Finished difference Result 27807 states and 43305 transitions. [2018-11-12 18:50:12,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-12 18:50:12,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2018-11-12 18:50:12,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:50:12,958 INFO L225 Difference]: With dead ends: 27807 [2018-11-12 18:50:12,958 INFO L226 Difference]: Without dead ends: 20790 [2018-11-12 18:50:13,000 INFO L604 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 [2018-11-12 18:50:13,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20790 states. [2018-11-12 18:50:13,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20790 to 20790. [2018-11-12 18:50:13,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20790 states. [2018-11-12 18:50:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20790 states to 20790 states and 31085 transitions. [2018-11-12 18:50:13,562 INFO L78 Accepts]: Start accepts. Automaton has 20790 states and 31085 transitions. Word has length 206 [2018-11-12 18:50:13,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:50:13,563 INFO L480 AbstractCegarLoop]: Abstraction has 20790 states and 31085 transitions. [2018-11-12 18:50:13,563 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-12 18:50:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 20790 states and 31085 transitions. [2018-11-12 18:50:13,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-11-12 18:50:13,575 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:50:13,575 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, 2, 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] [2018-11-12 18:50:13,579 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:50:13,579 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:50:13,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1323393900, now seen corresponding path program 1 times [2018-11-12 18:50:13,580 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:50:13,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:50:13,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:50:13,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:50:13,581 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:50:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:50:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 98 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 18:50:13,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:50:13,955 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:50:13,956 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-11-12 18:50:13,966 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2215], [2217], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2376], [2377], [2381], [2385], [2389], [2393], [2397], [2400], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 18:50:14,037 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:50:14,037 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:50:14,630 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:50:14,631 INFO L272 AbstractInterpreter]: Visited 85 different actions 85 times. Never merged. Never widened. Performed 792 root evaluator evaluations with a maximum evaluation depth of 6. Performed 792 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 26 variables. [2018-11-12 18:50:14,679 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:50:14,679 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:50:15,261 INFO L227 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.7% of their original sizes. [2018-11-12 18:50:15,261 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:50:15,591 INFO L415 sIntCurrentIteration]: We unified 209 AI predicates to 209 [2018-11-12 18:50:15,592 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:50:15,593 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:50:15,593 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [5] total 11 [2018-11-12 18:50:15,593 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:50:15,594 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-12 18:50:15,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-12 18:50:15,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-12 18:50:15,594 INFO L87 Difference]: Start difference. First operand 20790 states and 31085 transitions. Second operand 8 states. [2018-11-12 18:50:22,980 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:51:04,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:51:04,333 INFO L93 Difference]: Finished difference Result 42344 states and 63189 transitions. [2018-11-12 18:51:04,333 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-12 18:51:04,333 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 210 [2018-11-12 18:51:04,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:51:04,409 INFO L225 Difference]: With dead ends: 42344 [2018-11-12 18:51:04,409 INFO L226 Difference]: Without dead ends: 21560 [2018-11-12 18:51:04,462 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 211 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-12 18:51:04,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21560 states. [2018-11-12 18:51:05,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21560 to 21558. [2018-11-12 18:51:05,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21558 states. [2018-11-12 18:51:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21558 states to 21558 states and 31867 transitions. [2018-11-12 18:51:05,844 INFO L78 Accepts]: Start accepts. Automaton has 21558 states and 31867 transitions. Word has length 210 [2018-11-12 18:51:05,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:51:05,844 INFO L480 AbstractCegarLoop]: Abstraction has 21558 states and 31867 transitions. [2018-11-12 18:51:05,844 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-12 18:51:05,845 INFO L276 IsEmpty]: Start isEmpty. Operand 21558 states and 31867 transitions. [2018-11-12 18:51:05,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-11-12 18:51:05,856 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:51:05,856 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, 2, 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] [2018-11-12 18:51:05,857 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:51:05,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:51:05,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1234390904, now seen corresponding path program 1 times [2018-11-12 18:51:05,858 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:51:05,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:51:05,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:51:05,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:51:05,859 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:51:05,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:51:06,189 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:51:06,523 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-12 18:51:06,524 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:51:06,524 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:51:06,524 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-11-12 18:51:06,525 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2215], [2217], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2376], [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], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-12 18:51:06,536 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:51:06,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:51:06,688 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:51:07,153 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:51:07,154 INFO L272 AbstractInterpreter]: Visited 154 different actions 302 times. Merged at 5 different actions 5 times. Never widened. Performed 4661 root evaluator evaluations with a maximum evaluation depth of 6. Performed 4661 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:51:07,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:51:07,193 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:51:07,916 INFO L227 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 76.21% of their original sizes. [2018-11-12 18:51:07,917 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:51:11,642 INFO L415 sIntCurrentIteration]: We unified 275 AI predicates to 275 [2018-11-12 18:51:11,642 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:51:11,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:51:11,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [5] total 22 [2018-11-12 18:51:11,643 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:51:11,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-12 18:51:11,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-12 18:51:11,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-11-12 18:51:11,644 INFO L87 Difference]: Start difference. First operand 21558 states and 31867 transitions. Second operand 19 states. [2018-11-12 18:52:02,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 18:52:02,737 INFO L93 Difference]: Finished difference Result 43412 states and 64708 transitions. [2018-11-12 18:52:02,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-12 18:52:02,737 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 276 [2018-11-12 18:52:02,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 18:52:02,845 INFO L225 Difference]: With dead ends: 43412 [2018-11-12 18:52:02,845 INFO L226 Difference]: Without dead ends: 22628 [2018-11-12 18:52:02,928 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 296 GetRequests, 253 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=296, Invalid=1264, Unknown=0, NotChecked=0, Total=1560 [2018-11-12 18:52:02,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22628 states. [2018-11-12 18:52:03,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22628 to 22623. [2018-11-12 18:52:03,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22623 states. [2018-11-12 18:52:03,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22623 states to 22623 states and 32981 transitions. [2018-11-12 18:52:03,490 INFO L78 Accepts]: Start accepts. Automaton has 22623 states and 32981 transitions. Word has length 276 [2018-11-12 18:52:03,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 18:52:03,493 INFO L480 AbstractCegarLoop]: Abstraction has 22623 states and 32981 transitions. [2018-11-12 18:52:03,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-12 18:52:03,493 INFO L276 IsEmpty]: Start isEmpty. Operand 22623 states and 32981 transitions. [2018-11-12 18:52:03,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-11-12 18:52:03,505 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 18:52:03,505 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, 2, 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] [2018-11-12 18:52:03,506 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 18:52:03,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:52:03,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1828480064, now seen corresponding path program 1 times [2018-11-12 18:52:03,506 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 18:52:03,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:52:03,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 18:52:03,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 18:52:03,509 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 18:52:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 18:52:03,861 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 18:52:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 99 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-12 18:52:04,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 18:52:04,187 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 18:52:04,187 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 281 with the following transitions: [2018-11-12 18:52:04,189 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2215], [2217], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2376], [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] [2018-11-12 18:52:04,201 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 18:52:04,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 18:52:04,347 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 18:52:04,614 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 18:52:04,615 INFO L272 AbstractInterpreter]: Visited 158 different actions 310 times. Merged at 5 different actions 5 times. Never widened. Performed 4957 root evaluator evaluations with a maximum evaluation depth of 6. Performed 4957 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-12 18:52:04,627 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 18:52:04,627 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 18:52:05,317 INFO L227 lantSequenceWeakener]: Weakened 32 states. On average, predicates are now at 74.59% of their original sizes. [2018-11-12 18:52:05,317 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 18:52:05,883 INFO L415 sIntCurrentIteration]: We unified 279 AI predicates to 279 [2018-11-12 18:52:05,883 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 18:52:05,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 18:52:05,884 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [5] total 20 [2018-11-12 18:52:05,884 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 18:52:05,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 18:52:05,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 18:52:05,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2018-11-12 18:52:05,887 INFO L87 Difference]: Start difference. First operand 22623 states and 32981 transitions. Second operand 17 states. Received shutdown request... [2018-11-12 18:52:56,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-11-12 18:52:56,775 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 18:52:56,780 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 18:52:56,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 06:52:56 BoogieIcfgContainer [2018-11-12 18:52:56,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 18:52:56,782 INFO L168 Benchmark]: Toolchain (without parser) took 212914.86 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 61.6 MB). Peak memory consumption was 3.4 GB. Max. memory is 7.1 GB. [2018-11-12 18:52:56,783 INFO L168 Benchmark]: CDTParser took 0.26 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. [2018-11-12 18:52:56,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2448.88 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-11-12 18:52:56,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 338.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. [2018-11-12 18:52:56,785 INFO L168 Benchmark]: Boogie Preprocessor took 290.35 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2018-11-12 18:52:56,786 INFO L168 Benchmark]: RCFGBuilder took 9698.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 655.2 MB). Peak memory consumption was 655.2 MB. Max. memory is 7.1 GB. [2018-11-12 18:52:56,787 INFO L168 Benchmark]: TraceAbstraction took 200132.65 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 205.9 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-11-12 18:52:56,792 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 2448.88 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 338.22 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 769.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 290.35 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9698.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.5 GB in the end (delta: 655.2 MB). Peak memory consumption was 655.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200132.65 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 205.9 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was constructing difference of abstraction (22623states) and FLOYD_HOARE automaton (currently 23 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (14095 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 200.0s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 185.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3583 SDtfs, 19842 SDslu, 1089 SDs, 0 SdLazy, 30822 SolverSat, 6949 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 87.4s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 817 GetRequests, 729 SyntacticMatches, 6 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22623occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9975270652192411 AbsIntWeakeningRatio, 0.10615989515072084 AbsIntAvgWeakeningVarsNumRemoved, 15.644823066841415 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 55 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 1184 NumberOfCodeBlocks, 1184 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1178 ConstructedInterpolants, 0 QuantifiedInterpolants, 697496 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 541/614 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown