java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 19:44:30,903 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 19:44:30,905 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 19:44:30,921 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 19:44:30,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 19:44:30,923 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 19:44:30,925 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 19:44:30,928 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 19:44:30,930 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 19:44:30,931 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 19:44:30,932 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 19:44:30,932 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 19:44:30,933 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 19:44:30,934 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 19:44:30,936 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 19:44:30,936 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 19:44:30,937 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 19:44:30,940 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 19:44:30,942 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 19:44:30,944 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 19:44:30,945 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 19:44:30,947 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 19:44:30,950 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 19:44:30,950 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 19:44:30,950 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 19:44:30,952 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 19:44:30,953 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 19:44:30,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 19:44:30,955 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 19:44:30,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 19:44:30,957 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 19:44:30,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 19:44:30,958 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 19:44:30,958 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 19:44:30,960 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 19:44:30,961 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 19:44:30,961 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 19:44:30,980 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 19:44:30,981 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 19:44:30,982 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 19:44:30,983 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 19:44:30,983 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 19:44:30,983 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 19:44:30,984 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 19:44:30,984 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 19:44:30,984 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 19:44:30,985 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 19:44:30,985 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 19:44:30,985 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 19:44:30,986 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 19:44:30,987 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 19:44:30,987 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 19:44:30,987 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 19:44:30,987 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 19:44:30,988 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 19:44:30,988 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 19:44:30,988 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 19:44:30,989 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 19:44:30,989 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 19:44:30,989 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 19:44:30,989 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 19:44:30,990 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:44:30,990 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 19:44:30,990 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 19:44:30,990 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 19:44:30,991 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 19:44:30,991 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 19:44:30,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 19:44:30,991 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 19:44:30,991 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 19:44:30,992 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 19:44:31,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 19:44:31,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 19:44:31,056 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 19:44:31,058 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 19:44:31,058 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 19:44:31,059 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c [2018-10-24 19:44:31,137 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/11e7c1f1a/d7bc58b9f9834582963031f91a32d450/FLAGa46453a82 [2018-10-24 19:44:32,014 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 19:44:32,015 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label34_true-unreach-call.c [2018-10-24 19:44:32,052 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/11e7c1f1a/d7bc58b9f9834582963031f91a32d450/FLAGa46453a82 [2018-10-24 19:44:32,082 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/11e7c1f1a/d7bc58b9f9834582963031f91a32d450 [2018-10-24 19:44:32,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 19:44:32,102 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 19:44:32,103 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 19:44:32,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 19:44:32,109 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 19:44:32,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:44:32" (1/1) ... [2018-10-24 19:44:32,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e5b32d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:32, skipping insertion in model container [2018-10-24 19:44:32,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 07:44:32" (1/1) ... [2018-10-24 19:44:32,129 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 19:44:32,230 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 19:44:33,049 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:44:33,055 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 19:44:33,402 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 19:44:33,434 INFO L193 MainTranslator]: Completed translation [2018-10-24 19:44:33,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33 WrapperNode [2018-10-24 19:44:33,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 19:44:33,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 19:44:33,438 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 19:44:33,438 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 19:44:33,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 19:44:33,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 19:44:33,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 19:44:33,816 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 19:44:33,828 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... [2018-10-24 19:44:33,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 19:44:33,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 19:44:33,982 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 19:44:33,983 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 19:44:33,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 19:44:34,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 19:44:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 19:44:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 19:44:34,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 19:44:34,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 19:44:34,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 19:44:34,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 19:44:34,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 19:44:39,466 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 19:44:39,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:44:39 BoogieIcfgContainer [2018-10-24 19:44:39,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 19:44:39,469 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 19:44:39,469 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 19:44:39,474 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 19:44:39,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 07:44:32" (1/3) ... [2018-10-24 19:44:39,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a01c84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:44:39, skipping insertion in model container [2018-10-24 19:44:39,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 07:44:33" (2/3) ... [2018-10-24 19:44:39,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a01c84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 07:44:39, skipping insertion in model container [2018-10-24 19:44:39,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 07:44:39" (3/3) ... [2018-10-24 19:44:39,479 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label34_true-unreach-call.c [2018-10-24 19:44:39,492 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 19:44:39,506 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 19:44:39,527 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 19:44:39,581 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 19:44:39,582 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 19:44:39,582 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 19:44:39,582 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 19:44:39,582 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 19:44:39,583 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 19:44:39,583 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 19:44:39,583 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 19:44:39,620 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-24 19:44:39,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2018-10-24 19:44:39,642 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:44:39,645 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:44:39,648 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:44:39,656 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:44:39,657 INFO L82 PathProgramCache]: Analyzing trace with hash 483318420, now seen corresponding path program 1 times [2018-10-24 19:44:39,660 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:44:39,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:39,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:44:39,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:39,742 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:44:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:44:40,786 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-24 19:44:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:44:41,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:44:41,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 19:44:41,155 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:44:41,162 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 19:44:41,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 19:44:41,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:44:41,179 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-24 19:44:44,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:44:44,959 INFO L93 Difference]: Finished difference Result 1074 states and 1924 transitions. [2018-10-24 19:44:44,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 19:44:44,963 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 197 [2018-10-24 19:44:44,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:44:44,991 INFO L225 Difference]: With dead ends: 1074 [2018-10-24 19:44:44,991 INFO L226 Difference]: Without dead ends: 756 [2018-10-24 19:44:45,000 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 19:44:45,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2018-10-24 19:44:45,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 520. [2018-10-24 19:44:45,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-10-24 19:44:45,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-10-24 19:44:45,105 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 197 [2018-10-24 19:44:45,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:44:45,106 INFO L481 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-10-24 19:44:45,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 19:44:45,107 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-10-24 19:44:45,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-10-24 19:44:45,115 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:44:45,116 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:44:45,116 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:44:45,117 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:44:45,117 INFO L82 PathProgramCache]: Analyzing trace with hash 873411633, now seen corresponding path program 1 times [2018-10-24 19:44:45,117 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:44:45,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:45,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:44:45,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:45,119 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:44:45,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:44:45,434 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:44:45,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:44:45,435 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:44:45,435 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:44:45,437 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:44:45,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:44:45,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:44:45,438 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 6 states. [2018-10-24 19:44:50,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:44:50,005 INFO L93 Difference]: Finished difference Result 1482 states and 2700 transitions. [2018-10-24 19:44:50,008 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 19:44:50,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 225 [2018-10-24 19:44:50,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:44:50,022 INFO L225 Difference]: With dead ends: 1482 [2018-10-24 19:44:50,022 INFO L226 Difference]: Without dead ends: 968 [2018-10-24 19:44:50,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 19:44:50,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-10-24 19:44:50,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 949. [2018-10-24 19:44:50,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-10-24 19:44:50,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-10-24 19:44:50,106 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 225 [2018-10-24 19:44:50,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:44:50,107 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-10-24 19:44:50,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:44:50,107 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-10-24 19:44:50,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-10-24 19:44:50,113 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:44:50,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:44:50,114 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:44:50,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:44:50,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2108795236, now seen corresponding path program 1 times [2018-10-24 19:44:50,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:44:50,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:50,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:44:50,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:50,117 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:44:50,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:44:50,791 WARN L179 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 9 [2018-10-24 19:44:51,062 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 19:44:51,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 19:44:51,063 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 19:44:51,063 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 19:44:51,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 19:44:51,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 19:44:51,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 19:44:51,065 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 6 states. [2018-10-24 19:44:54,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 19:44:54,627 INFO L93 Difference]: Finished difference Result 2438 states and 4009 transitions. [2018-10-24 19:44:54,628 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 19:44:54,628 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 243 [2018-10-24 19:44:54,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 19:44:54,644 INFO L225 Difference]: With dead ends: 2438 [2018-10-24 19:44:54,644 INFO L226 Difference]: Without dead ends: 1495 [2018-10-24 19:44:54,653 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 19:44:54,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2018-10-24 19:44:54,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1450. [2018-10-24 19:44:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1450 states. [2018-10-24 19:44:54,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1450 states to 1450 states and 2315 transitions. [2018-10-24 19:44:54,726 INFO L78 Accepts]: Start accepts. Automaton has 1450 states and 2315 transitions. Word has length 243 [2018-10-24 19:44:54,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 19:44:54,727 INFO L481 AbstractCegarLoop]: Abstraction has 1450 states and 2315 transitions. [2018-10-24 19:44:54,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 19:44:54,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states and 2315 transitions. [2018-10-24 19:44:54,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-10-24 19:44:54,736 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 19:44:54,736 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 19:44:54,736 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 19:44:54,737 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 19:44:54,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1365448965, now seen corresponding path program 1 times [2018-10-24 19:44:54,737 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 19:44:54,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:54,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:44:54,739 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 19:44:54,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 19:44:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:44:55,124 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 45 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 19:44:55,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:44:55,125 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 19:44:55,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 251 with the following transitions: [2018-10-24 19:44:55,130 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1037], [1039], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-24 19:44:55,262 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 19:44:55,263 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 19:49:04,524 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 19:49:04,526 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 19:49:04,528 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 19:49:04,528 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 19:49:04,528 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:49:04,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 19:49:04,547 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 19:49:04,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 19:49:04,778 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 19:49:04,816 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 19:49:05,018 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 19:49:05,018 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 19:49:05,023 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 19:49:05,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 07:49:05 BoogieIcfgContainer [2018-10-24 19:49:05,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 19:49:05,024 INFO L168 Benchmark]: Toolchain (without parser) took 272923.81 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -524.7 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 19:49:05,026 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 19:49:05,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1332.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 19:49:05,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 378.02 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -853.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:49:05,028 INFO L168 Benchmark]: Boogie Preprocessor took 165.89 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-24 19:49:05,029 INFO L168 Benchmark]: RCFGBuilder took 5485.11 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 252.7 MB). Peak memory consumption was 252.7 MB. Max. memory is 7.1 GB. [2018-10-24 19:49:05,030 INFO L168 Benchmark]: TraceAbstraction took 265554.36 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: -23.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 19:49:05,035 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1332.87 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 378.02 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 720.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -853.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 165.89 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5485.11 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 252.7 MB). Peak memory consumption was 252.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265554.36 ms. Allocated memory was 2.2 GB in the beginning and 3.5 GB in the end (delta: 1.3 GB). Free memory was 1.9 GB in the beginning and 1.9 GB in the end (delta: -23.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1605]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1605). Cancelled while BasicCegarLoop was analyzing trace of length 251 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 265.4s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 12.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 434 SDtfs, 2615 SDslu, 549 SDs, 0 SdLazy, 3409 SolverSat, 1007 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 7 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 249.4s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 300 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 665 NumberOfCodeBlocks, 665 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 662 ConstructedInterpolants, 0 QuantifiedInterpolants, 707198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 68/68 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown