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/Problem18_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:43:22,850 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:43:22,852 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:43:22,866 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:43:22,866 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:43:22,867 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:43:22,869 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:43:22,871 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:43:22,873 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:43:22,874 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:43:22,875 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:43:22,875 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:43:22,876 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:43:22,878 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:43:22,879 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:43:22,880 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:43:22,881 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:43:22,883 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:43:22,885 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:43:22,887 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:43:22,888 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:43:22,889 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:43:22,892 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:43:22,892 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:43:22,893 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:43:22,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:43:22,895 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:43:22,896 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:43:22,897 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:43:22,898 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:43:22,898 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:43:22,899 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:43:22,899 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:43:22,899 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:43:22,901 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:43:22,901 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:43:22,902 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 19:43:22,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:43:22,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:43:22,918 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:43:22,919 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:43:22,919 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:43:22,919 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:43:22,919 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:43:22,919 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:43:22,920 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:43:22,920 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:43:22,920 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:43:22,920 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:43:22,920 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:43:22,921 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:43:22,921 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:43:22,921 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:43:22,922 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:43:22,922 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:43:22,922 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:43:22,922 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:43:22,922 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:43:22,923 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:43:22,923 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:43:22,923 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:43:22,923 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:43:22,924 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:43:22,924 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:43:22,924 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:43:22,924 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:43:22,924 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:43:22,925 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:43:22,925 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:43:22,925 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:43:22,925 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:43:22,928 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:43:22,994 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:43:23,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:43:23,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:43:23,018 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:43:23,019 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:43:23,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label42_true-unreach-call.c [2018-11-12 19:43:23,090 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5644e7a3c/3126a52dd5894e4fbfaeaac68e65f46a/FLAGa4c0289ee [2018-11-12 19:43:23,834 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:43:23,835 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label42_true-unreach-call.c [2018-11-12 19:43:23,862 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5644e7a3c/3126a52dd5894e4fbfaeaac68e65f46a/FLAGa4c0289ee [2018-11-12 19:43:23,884 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5644e7a3c/3126a52dd5894e4fbfaeaac68e65f46a [2018-11-12 19:43:23,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:43:23,900 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:43:23,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:43:23,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:43:23,907 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:43:23,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:43:23" (1/1) ... [2018-11-12 19:43:23,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af34afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:23, skipping insertion in model container [2018-11-12 19:43:23,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:43:23" (1/1) ... [2018-11-12 19:43:23,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:43:24,074 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:43:25,245 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:43:25,252 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:43:25,785 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:43:25,812 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:43:25,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25 WrapperNode [2018-11-12 19:43:25,813 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:43:25,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:43:25,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:43:25,815 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:43:25,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:43:26,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:43:26,102 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:43:26,102 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:43:26,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,131 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (1/1) ... [2018-11-12 19:43:26,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:43:26,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:43:26,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:43:26,334 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:43:26,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (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 19:43:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:43:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:43:26,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:43:26,401 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-12 19:43:26,401 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-12 19:43:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:43:26,402 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:43:26,402 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:43:26,402 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:43:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:43:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:43:26,403 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:43:26,403 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:43:34,149 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:43:34,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:43:34 BoogieIcfgContainer [2018-11-12 19:43:34,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:43:34,151 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:43:34,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:43:34,154 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:43:34,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:43:23" (1/3) ... [2018-11-12 19:43:34,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3458272e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:43:34, skipping insertion in model container [2018-11-12 19:43:34,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:43:25" (2/3) ... [2018-11-12 19:43:34,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3458272e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:43:34, skipping insertion in model container [2018-11-12 19:43:34,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:43:34" (3/3) ... [2018-11-12 19:43:34,158 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label42_true-unreach-call.c [2018-11-12 19:43:34,167 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:43:34,176 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:43:34,191 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:43:34,237 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:43:34,237 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:43:34,237 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:43:34,237 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:43:34,237 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:43:34,238 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:43:34,238 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:43:34,238 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:43:34,287 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-12 19:43:34,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-11-12 19:43:34,297 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:43:34,298 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 19:43:34,300 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:43:34,305 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:34,306 INFO L82 PathProgramCache]: Analyzing trace with hash -385321844, now seen corresponding path program 1 times [2018-11-12 19:43:34,308 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:43:34,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:34,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:43:34,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:34,353 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:43:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:43:34,766 WARN L179 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:43:34,857 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 19:43:34,860 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:43:34,860 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:43:34,861 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:34,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:43:34,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:43:34,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:43:34,890 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-11-12 19:43:41,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:43:41,742 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-11-12 19:43:41,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:43:41,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2018-11-12 19:43:41,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:43:41,777 INFO L225 Difference]: With dead ends: 2251 [2018-11-12 19:43:41,778 INFO L226 Difference]: Without dead ends: 1474 [2018-11-12 19:43:41,788 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:43:41,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-11-12 19:43:41,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-11-12 19:43:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-11-12 19:43:41,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-11-12 19:43:41,938 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 56 [2018-11-12 19:43:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:43:41,939 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-11-12 19:43:41,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:43:41,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-11-12 19:43:41,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-12 19:43:41,947 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:43:41,947 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] [2018-11-12 19:43:41,948 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:43:41,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:41,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1814229039, now seen corresponding path program 1 times [2018-11-12 19:43:41,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:43:41,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:41,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:43:41,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:41,950 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:43:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:43:42,250 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 19:43:42,250 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:43:42,250 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:43:42,250 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:42,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:43:42,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:43:42,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:43:42,253 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-11-12 19:43:50,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:43:50,817 INFO L93 Difference]: Finished difference Result 4422 states and 8490 transitions. [2018-11-12 19:43:50,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:43:50,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-12 19:43:50,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:43:50,840 INFO L225 Difference]: With dead ends: 4422 [2018-11-12 19:43:50,840 INFO L226 Difference]: Without dead ends: 2954 [2018-11-12 19:43:50,846 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:43:50,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2954 states. [2018-11-12 19:43:50,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2954 to 2928. [2018-11-12 19:43:50,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-11-12 19:43:50,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5043 transitions. [2018-11-12 19:43:50,947 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5043 transitions. Word has length 131 [2018-11-12 19:43:50,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:43:50,948 INFO L480 AbstractCegarLoop]: Abstraction has 2928 states and 5043 transitions. [2018-11-12 19:43:50,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:43:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5043 transitions. [2018-11-12 19:43:50,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-12 19:43:50,953 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:43:50,953 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] [2018-11-12 19:43:50,954 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:43:50,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:50,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1830585943, now seen corresponding path program 1 times [2018-11-12 19:43:50,954 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:43:50,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:50,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:43:50,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:50,959 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:43:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:43:51,186 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 19:43:51,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:43:51,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:43:51,186 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:51,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:43:51,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:43:51,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:43:51,188 INFO L87 Difference]: Start difference. First operand 2928 states and 5043 transitions. Second operand 6 states. [2018-11-12 19:43:56,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:43:56,730 INFO L93 Difference]: Finished difference Result 7337 states and 12456 transitions. [2018-11-12 19:43:56,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:43:56,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-12 19:43:56,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:43:56,756 INFO L225 Difference]: With dead ends: 7337 [2018-11-12 19:43:56,756 INFO L226 Difference]: Without dead ends: 4415 [2018-11-12 19:43:56,765 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:43:56,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4415 states. [2018-11-12 19:43:56,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4415 to 4397. [2018-11-12 19:43:56,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4397 states. [2018-11-12 19:43:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4397 states to 4397 states and 6494 transitions. [2018-11-12 19:43:56,903 INFO L78 Accepts]: Start accepts. Automaton has 4397 states and 6494 transitions. Word has length 143 [2018-11-12 19:43:56,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:43:56,904 INFO L480 AbstractCegarLoop]: Abstraction has 4397 states and 6494 transitions. [2018-11-12 19:43:56,904 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:43:56,904 INFO L276 IsEmpty]: Start isEmpty. Operand 4397 states and 6494 transitions. [2018-11-12 19:43:56,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-12 19:43:56,908 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:43:56,909 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] [2018-11-12 19:43:56,909 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:43:56,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:56,910 INFO L82 PathProgramCache]: Analyzing trace with hash 215050342, now seen corresponding path program 1 times [2018-11-12 19:43:56,912 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:43:56,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:56,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:43:56,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:43:56,913 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:43:56,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:43:57,256 WARN L179 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:43:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:43:57,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:43:57,790 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:43:57,791 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 169 with the following transitions: [2018-11-12 19:43:57,793 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], [1971], [1973], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [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], [2284], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-12 19:43:57,845 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:43:57,845 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:43:58,580 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:43:58,582 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1033 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1033 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:43:58,632 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:43:58,632 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:43:59,089 INFO L227 lantSequenceWeakener]: Weakened 162 states. On average, predicates are now at 78.28% of their original sizes. [2018-11-12 19:43:59,089 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:43:59,425 INFO L415 sIntCurrentIteration]: We unified 167 AI predicates to 167 [2018-11-12 19:43:59,425 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:43:59,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:43:59,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2018-11-12 19:43:59,427 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:43:59,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-12 19:43:59,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-12 19:43:59,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-12 19:43:59,428 INFO L87 Difference]: Start difference. First operand 4397 states and 6494 transitions. Second operand 7 states. [2018-11-12 19:44:09,314 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:44:37,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:44:37,716 INFO L93 Difference]: Finished difference Result 9493 states and 13867 transitions. [2018-11-12 19:44:37,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:44:37,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2018-11-12 19:44:37,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:44:37,738 INFO L225 Difference]: With dead ends: 9493 [2018-11-12 19:44:37,739 INFO L226 Difference]: Without dead ends: 5102 [2018-11-12 19:44:37,751 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 168 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-12 19:44:37,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2018-11-12 19:44:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5100. [2018-11-12 19:44:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5100 states. [2018-11-12 19:44:37,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5100 states to 5100 states and 7209 transitions. [2018-11-12 19:44:37,880 INFO L78 Accepts]: Start accepts. Automaton has 5100 states and 7209 transitions. Word has length 168 [2018-11-12 19:44:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:44:37,882 INFO L480 AbstractCegarLoop]: Abstraction has 5100 states and 7209 transitions. [2018-11-12 19:44:37,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-12 19:44:37,882 INFO L276 IsEmpty]: Start isEmpty. Operand 5100 states and 7209 transitions. [2018-11-12 19:44:37,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-11-12 19:44:37,890 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:44:37,891 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:44:37,891 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:44:37,891 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:44:37,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1101070807, now seen corresponding path program 1 times [2018-11-12 19:44:37,892 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:44:37,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:44:37,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:44:37,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:44:37,896 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:44:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:44:38,443 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:44:38,619 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-12 19:44:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 152 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:44:39,010 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:44:39,010 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:44:39,011 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 356 with the following transitions: [2018-11-12 19:44:39,011 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], [1971], [1973], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [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], [2284], [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] [2018-11-12 19:44:39,019 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:44:39,020 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:44:40,538 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:44:40,538 INFO L272 AbstractInterpreter]: Visited 195 different actions 383 times. Merged at 4 different actions 4 times. Never widened. Performed 5930 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5930 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:44:40,577 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:44:40,577 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:44:41,752 INFO L227 lantSequenceWeakener]: Weakened 68 states. On average, predicates are now at 78.07% of their original sizes. [2018-11-12 19:44:41,753 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:44:43,890 INFO L415 sIntCurrentIteration]: We unified 354 AI predicates to 354 [2018-11-12 19:44:43,890 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:44:43,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:44:43,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [11] total 26 [2018-11-12 19:44:43,891 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:44:43,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 19:44:43,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 19:44:43,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:44:43,892 INFO L87 Difference]: Start difference. First operand 5100 states and 7209 transitions. Second operand 17 states. [2018-11-12 19:45:17,979 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:45:43,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:45:43,438 INFO L93 Difference]: Finished difference Result 11992 states and 16819 transitions. [2018-11-12 19:45:43,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:45:43,439 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 355 [2018-11-12 19:45:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:45:43,477 INFO L225 Difference]: With dead ends: 11992 [2018-11-12 19:45:43,477 INFO L226 Difference]: Without dead ends: 7601 [2018-11-12 19:45:43,492 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 365 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=178, Invalid=578, Unknown=0, NotChecked=0, Total=756 [2018-11-12 19:45:43,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7601 states. [2018-11-12 19:45:43,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7601 to 7364. [2018-11-12 19:45:43,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7364 states. [2018-11-12 19:45:43,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7364 states to 7364 states and 9513 transitions. [2018-11-12 19:45:43,687 INFO L78 Accepts]: Start accepts. Automaton has 7364 states and 9513 transitions. Word has length 355 [2018-11-12 19:45:43,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:45:43,688 INFO L480 AbstractCegarLoop]: Abstraction has 7364 states and 9513 transitions. [2018-11-12 19:45:43,688 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 19:45:43,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7364 states and 9513 transitions. [2018-11-12 19:45:43,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2018-11-12 19:45:43,703 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:45:43,704 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:45:43,704 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:45:43,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:45:43,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1760472468, now seen corresponding path program 1 times [2018-11-12 19:45:43,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:45:43,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:45:43,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:45:43,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:45:43,706 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:45:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:45:44,222 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:45:44,781 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-12 19:45:44,782 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:45:44,782 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:45:44,783 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 585 with the following transitions: [2018-11-12 19:45:44,786 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], [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], [1971], [1973], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [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] [2018-11-12 19:45:44,811 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:45:44,811 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:45:46,511 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:45:46,511 INFO L272 AbstractInterpreter]: Visited 535 different actions 1064 times. Merged at 5 different actions 5 times. Never widened. Performed 14923 root evaluator evaluations with a maximum evaluation depth of 6. Performed 14923 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:45:46,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:45:46,546 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:45:47,560 INFO L227 lantSequenceWeakener]: Weakened 148 states. On average, predicates are now at 78.73% of their original sizes. [2018-11-12 19:45:47,561 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:45:48,646 INFO L415 sIntCurrentIteration]: We unified 583 AI predicates to 583 [2018-11-12 19:45:48,646 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:45:48,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:45:48,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [30] imperfect sequences [4] total 32 [2018-11-12 19:45:48,647 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:45:48,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-12 19:45:48,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-12 19:45:48,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=751, Unknown=0, NotChecked=0, Total=870 [2018-11-12 19:45:48,649 INFO L87 Difference]: Start difference. First operand 7364 states and 9513 transitions. Second operand 30 states. [2018-11-12 19:46:35,249 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:46:59,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2018-11-12 19:46:59,708 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:46:59,714 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:46:59,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:46:59 BoogieIcfgContainer [2018-11-12 19:46:59,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:46:59,715 INFO L168 Benchmark]: Toolchain (without parser) took 215817.10 ms. Allocated memory was 1.5 GB in the beginning and 4.5 GB in the end (delta: 3.0 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -893.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-11-12 19:46:59,716 INFO L168 Benchmark]: CDTParser took 0.20 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 19:46:59,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1912.40 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. [2018-11-12 19:46:59,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 287.66 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -920.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-12 19:46:59,719 INFO L168 Benchmark]: Boogie Preprocessor took 231.63 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-12 19:46:59,720 INFO L168 Benchmark]: RCFGBuilder took 7816.16 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 508.3 MB). Peak memory consumption was 508.3 MB. Max. memory is 7.1 GB. [2018-11-12 19:46:59,720 INFO L168 Benchmark]: TraceAbstraction took 205563.31 ms. Allocated memory was 2.2 GB in the beginning and 4.5 GB in the end (delta: 2.3 GB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -643.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-12 19:46:59,725 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 1912.40 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 287.66 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -920.6 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 231.63 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7816.16 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 508.3 MB). Peak memory consumption was 508.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205563.31 ms. Allocated memory was 2.2 GB in the beginning and 4.5 GB in the end (delta: 2.3 GB). Free memory was 1.6 GB in the beginning and 2.3 GB in the end (delta: -643.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 156). Cancelled while BasicCegarLoop was constructing difference of abstraction (7364states) and FLOYD_HOARE automaton (currently 41 states, 30 states before enhancement),while ReachableStatesComputation was computing reachable states (12965 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 205.4s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 190.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2666 SDtfs, 22313 SDslu, 1091 SDs, 0 SdLazy, 34967 SolverSat, 4611 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 78.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1175 GetRequests, 1062 SyntacticMatches, 4 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7364occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.1s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9982547337403199 AbsIntWeakeningRatio, 0.06702898550724638 AbsIntAvgWeakeningVarsNumRemoved, 11.04981884057971 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 283 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 1437 NumberOfCodeBlocks, 1437 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1431 ConstructedInterpolants, 0 QuantifiedInterpolants, 2587085 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 254/406 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown