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/Problem13_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:32:13,400 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:32:13,403 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:32:13,423 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:32:13,423 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:32:13,426 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:32:13,429 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:32:13,432 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:32:13,434 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:32:13,437 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:32:13,440 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:32:13,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:32:13,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:32:13,449 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:32:13,450 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:32:13,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:32:13,458 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:32:13,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:32:13,464 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:32:13,470 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:32:13,471 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:32:13,474 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:32:13,477 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:32:13,478 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:32:13,478 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:32:13,479 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:32:13,483 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:32:13,483 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:32:13,484 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:32:13,485 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:32:13,486 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:32:13,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:32:13,489 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:32:13,489 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:32:13,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:32:13,491 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:32:13,492 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 [2018-11-07 20:32:13,519 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:32:13,520 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:32:13,521 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:32:13,521 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:32:13,521 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:32:13,522 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:32:13,522 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:32:13,522 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:32:13,522 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:32:13,522 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:32:13,523 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:32:13,523 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:32:13,524 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:32:13,525 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:32:13,525 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:32:13,525 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:32:13,525 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:32:13,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:32:13,526 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:32:13,527 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:32:13,527 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:32:13,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:32:13,528 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:32:13,528 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:32:13,528 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:32:13,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:32:13,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:32:13,529 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:32:13,530 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:32:13,530 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:32:13,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:32:13,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:32:13,531 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:32:13,531 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:32:13,531 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:32:13,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:32:13,617 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:32:13,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:32:13,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:32:13,623 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:32:13,624 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-11-07 20:32:13,683 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2cad95b2/1879a54435df43a6bab0708f5ee7a78f/FLAG55fd2c1f0 [2018-11-07 20:32:14,487 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:32:14,488 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label56_true-unreach-call.c [2018-11-07 20:32:14,529 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2cad95b2/1879a54435df43a6bab0708f5ee7a78f/FLAG55fd2c1f0 [2018-11-07 20:32:14,548 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e2cad95b2/1879a54435df43a6bab0708f5ee7a78f [2018-11-07 20:32:14,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:32:14,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:32:14,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:32:14,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:32:14,568 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:32:14,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:32:14" (1/1) ... [2018-11-07 20:32:14,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2ccaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:14, skipping insertion in model container [2018-11-07 20:32:14,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:32:14" (1/1) ... [2018-11-07 20:32:14,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:32:14,746 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:32:16,201 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:32:16,206 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:32:16,924 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:32:16,956 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:32:16,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16 WrapperNode [2018-11-07 20:32:16,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:32:16,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:32:16,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:32:16,959 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:32:16,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:32:17,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:32:17,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:32:17,349 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:32:17,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... [2018-11-07 20:32:17,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:32:17,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:32:17,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:32:17,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:32:17,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:32:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:32:17,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:32:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:32:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:32:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:32:17,763 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:32:17,763 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:32:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:32:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:32:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:32:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:32:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:32:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:32:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:32:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:32:26,757 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:32:26,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:32:26 BoogieIcfgContainer [2018-11-07 20:32:26,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:32:26,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:32:26,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:32:26,762 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:32:26,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:32:14" (1/3) ... [2018-11-07 20:32:26,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@868f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:32:26, skipping insertion in model container [2018-11-07 20:32:26,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:32:16" (2/3) ... [2018-11-07 20:32:26,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@868f2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:32:26, skipping insertion in model container [2018-11-07 20:32:26,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:32:26" (3/3) ... [2018-11-07 20:32:26,766 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label56_true-unreach-call.c [2018-11-07 20:32:26,776 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:32:26,787 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:32:26,805 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:32:26,857 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:32:26,857 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:32:26,858 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:32:26,858 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:32:26,858 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:32:26,858 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:32:26,858 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:32:26,858 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:32:26,902 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-11-07 20:32:26,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-07 20:32:26,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:32:26,913 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] [2018-11-07 20:32:26,915 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:32:26,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:26,922 INFO L82 PathProgramCache]: Analyzing trace with hash -460452772, now seen corresponding path program 1 times [2018-11-07 20:32:26,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:32:26,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:26,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:32:26,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:26,974 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:32:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:32:27,442 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:32:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:32:27,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:32:27,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:32:27,555 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:32:27,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:32:27,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:32:27,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:32:27,582 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-11-07 20:32:36,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:32:36,240 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-11-07 20:32:36,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:32:36,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2018-11-07 20:32:36,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:32:36,286 INFO L225 Difference]: With dead ends: 3087 [2018-11-07 20:32:36,286 INFO L226 Difference]: Without dead ends: 1965 [2018-11-07 20:32:36,298 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:32:36,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-11-07 20:32:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-11-07 20:32:36,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-07 20:32:36,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-11-07 20:32:36,493 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 60 [2018-11-07 20:32:36,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:32:36,494 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-11-07 20:32:36,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:32:36,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-11-07 20:32:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-11-07 20:32:36,508 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:32:36,509 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:32:36,509 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:32:36,509 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:36,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1916095534, now seen corresponding path program 1 times [2018-11-07 20:32:36,510 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:32:36,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:36,511 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:32:36,511 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:36,512 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:32:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:32:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:32:36,927 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:32:36,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:32:36,928 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:32:36,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:32:36,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:32:36,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:32:36,931 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-11-07 20:32:48,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:32:48,994 INFO L93 Difference]: Finished difference Result 5634 states and 10287 transitions. [2018-11-07 20:32:48,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:32:48,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-11-07 20:32:48,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:32:49,021 INFO L225 Difference]: With dead ends: 5634 [2018-11-07 20:32:49,021 INFO L226 Difference]: Without dead ends: 3681 [2018-11-07 20:32:49,028 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:32:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2018-11-07 20:32:49,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3650. [2018-11-07 20:32:49,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3650 states. [2018-11-07 20:32:49,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3650 states to 3650 states and 5957 transitions. [2018-11-07 20:32:49,134 INFO L78 Accepts]: Start accepts. Automaton has 3650 states and 5957 transitions. Word has length 137 [2018-11-07 20:32:49,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:32:49,134 INFO L480 AbstractCegarLoop]: Abstraction has 3650 states and 5957 transitions. [2018-11-07 20:32:49,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:32:49,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3650 states and 5957 transitions. [2018-11-07 20:32:49,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-11-07 20:32:49,141 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:32:49,141 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:32:49,142 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:32:49,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:32:49,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1937343332, now seen corresponding path program 1 times [2018-11-07 20:32:49,142 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:32:49,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:49,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:32:49,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:32:49,144 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:32:49,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:32:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:32:49,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:32:49,451 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:32:49,451 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:32:49,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:32:49,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:32:49,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:32:49,453 INFO L87 Difference]: Start difference. First operand 3650 states and 5957 transitions. Second operand 6 states. [2018-11-07 20:33:02,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:33:02,078 INFO L93 Difference]: Finished difference Result 12391 states and 20613 transitions. [2018-11-07 20:33:02,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:33:02,081 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2018-11-07 20:33:02,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:33:02,138 INFO L225 Difference]: With dead ends: 12391 [2018-11-07 20:33:02,139 INFO L226 Difference]: Without dead ends: 8747 [2018-11-07 20:33:02,160 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:33:02,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8747 states. [2018-11-07 20:33:02,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8747 to 8687. [2018-11-07 20:33:02,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8687 states. [2018-11-07 20:33:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8687 states to 8687 states and 12870 transitions. [2018-11-07 20:33:02,390 INFO L78 Accepts]: Start accepts. Automaton has 8687 states and 12870 transitions. Word has length 156 [2018-11-07 20:33:02,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:33:02,391 INFO L480 AbstractCegarLoop]: Abstraction has 8687 states and 12870 transitions. [2018-11-07 20:33:02,391 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:33:02,391 INFO L276 IsEmpty]: Start isEmpty. Operand 8687 states and 12870 transitions. [2018-11-07 20:33:02,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2018-11-07 20:33:02,395 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:33:02,395 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:33:02,395 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:33:02,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:33:02,396 INFO L82 PathProgramCache]: Analyzing trace with hash -411394740, now seen corresponding path program 1 times [2018-11-07 20:33:02,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:33:02,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:33:02,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:33:02,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:33:02,398 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:33:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:33:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:33:02,629 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:33:02,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:33:02,629 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:33:02,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:33:02,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:33:02,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:33:02,631 INFO L87 Difference]: Start difference. First operand 8687 states and 12870 transitions. Second operand 6 states. [2018-11-07 20:33:13,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:33:13,107 INFO L93 Difference]: Finished difference Result 22915 states and 34933 transitions. [2018-11-07 20:33:13,113 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:33:13,113 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 168 [2018-11-07 20:33:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:33:13,194 INFO L225 Difference]: With dead ends: 22915 [2018-11-07 20:33:13,195 INFO L226 Difference]: Without dead ends: 14234 [2018-11-07 20:33:13,232 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 [2018-11-07 20:33:13,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14234 states. [2018-11-07 20:33:13,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14234 to 14063. [2018-11-07 20:33:13,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14063 states. [2018-11-07 20:33:13,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14063 states to 14063 states and 19980 transitions. [2018-11-07 20:33:13,616 INFO L78 Accepts]: Start accepts. Automaton has 14063 states and 19980 transitions. Word has length 168 [2018-11-07 20:33:13,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:33:13,617 INFO L480 AbstractCegarLoop]: Abstraction has 14063 states and 19980 transitions. [2018-11-07 20:33:13,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:33:13,617 INFO L276 IsEmpty]: Start isEmpty. Operand 14063 states and 19980 transitions. [2018-11-07 20:33:13,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-07 20:33:13,629 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:33:13,629 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:33:13,629 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:33:13,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:33:13,630 INFO L82 PathProgramCache]: Analyzing trace with hash -457278060, now seen corresponding path program 1 times [2018-11-07 20:33:13,630 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:33:13,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:33:13,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:33:13,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:33:13,631 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:33:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:33:13,997 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 106 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:33:13,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:33:13,998 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:33:13,999 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-11-07 20:33:14,001 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3007], [3009], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3245], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:33:14,053 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:33:14,054 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:33:14,905 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:33:14,908 INFO L272 AbstractInterpreter]: Visited 101 different actions 101 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 20:33:14,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:33:14,961 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:33:16,111 INFO L227 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 71.77% of their original sizes. [2018-11-07 20:33:16,111 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:33:16,857 INFO L415 sIntCurrentIteration]: We unified 231 AI predicates to 231 [2018-11-07 20:33:16,857 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:33:16,858 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:33:16,858 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-11-07 20:33:16,858 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:33:16,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:33:16,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:33:16,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:33:16,860 INFO L87 Difference]: Start difference. First operand 14063 states and 19980 transitions. Second operand 10 states. [2018-11-07 20:33:28,008 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:34:05,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:34:05,317 INFO L93 Difference]: Finished difference Result 28929 states and 40975 transitions. [2018-11-07 20:34:05,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 20:34:05,318 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 232 [2018-11-07 20:34:05,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:34:05,366 INFO L225 Difference]: With dead ends: 28929 [2018-11-07 20:34:05,366 INFO L226 Difference]: Without dead ends: 14872 [2018-11-07 20:34:05,402 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 235 GetRequests, 223 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-07 20:34:05,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14872 states. [2018-11-07 20:34:05,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14872 to 14867. [2018-11-07 20:34:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14867 states. [2018-11-07 20:34:05,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14867 states to 14867 states and 20794 transitions. [2018-11-07 20:34:05,699 INFO L78 Accepts]: Start accepts. Automaton has 14867 states and 20794 transitions. Word has length 232 [2018-11-07 20:34:05,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:34:05,699 INFO L480 AbstractCegarLoop]: Abstraction has 14867 states and 20794 transitions. [2018-11-07 20:34:05,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:34:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand 14867 states and 20794 transitions. [2018-11-07 20:34:05,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-11-07 20:34:05,708 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:34:05,709 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:34:05,709 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:34:05,709 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:34:05,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1219332287, now seen corresponding path program 1 times [2018-11-07 20:34:05,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:34:05,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:34:05,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:34:05,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:34:05,711 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:34:06,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:34:07,225 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:34:07,409 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 101 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:34:07,409 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:34:07,409 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:34:07,409 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 287 with the following transitions: [2018-11-07 20:34:07,410 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3007], [3009], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3245], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3305], [3309], [3313], [3317], [3321], [3325], [3329], [3333], [3344], [3355], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3409], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:34:07,416 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:34:07,416 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:34:07,945 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:34:07,945 INFO L272 AbstractInterpreter]: Visited 138 different actions 402 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:34:07,952 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:34:07,952 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:34:08,399 INFO L227 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 71.35% of their original sizes. [2018-11-07 20:34:08,399 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:34:08,852 INFO L415 sIntCurrentIteration]: We unified 285 AI predicates to 285 [2018-11-07 20:34:08,852 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:34:08,853 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:34:08,853 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 16 [2018-11-07 20:34:08,853 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:34:08,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 20:34:08,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 20:34:08,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:34:08,854 INFO L87 Difference]: Start difference. First operand 14867 states and 20794 transitions. Second operand 10 states. [2018-11-07 20:34:12,060 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:34:45,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:34:45,946 INFO L93 Difference]: Finished difference Result 31338 states and 43904 transitions. [2018-11-07 20:34:45,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 20:34:45,947 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 286 [2018-11-07 20:34:45,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:34:45,995 INFO L225 Difference]: With dead ends: 31338 [2018-11-07 20:34:45,995 INFO L226 Difference]: Without dead ends: 17281 [2018-11-07 20:34:46,026 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 292 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-11-07 20:34:46,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17281 states. [2018-11-07 20:34:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17281 to 17272. [2018-11-07 20:34:46,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17272 states. [2018-11-07 20:34:46,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17272 states to 17272 states and 23268 transitions. [2018-11-07 20:34:46,347 INFO L78 Accepts]: Start accepts. Automaton has 17272 states and 23268 transitions. Word has length 286 [2018-11-07 20:34:46,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:34:46,348 INFO L480 AbstractCegarLoop]: Abstraction has 17272 states and 23268 transitions. [2018-11-07 20:34:46,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 20:34:46,348 INFO L276 IsEmpty]: Start isEmpty. Operand 17272 states and 23268 transitions. [2018-11-07 20:34:46,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-11-07 20:34:46,361 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:34:46,361 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:34:46,361 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:34:46,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:34:46,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1014447592, now seen corresponding path program 1 times [2018-11-07 20:34:46,362 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:34:46,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:34:46,363 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:34:46,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:34:46,363 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:34:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:34:47,888 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 165 proven. 231 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-11-07 20:34:47,889 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:34:47,889 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:34:47,889 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 334 with the following transitions: [2018-11-07 20:34:47,889 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3007], [3009], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3156], [3160], [3164], [3168], [3179], [3183], [3187], [3191], [3195], [3199], [3203], [3207], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3245], [3246], [3250], [3254], [3258], [3262], [3265], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-11-07 20:34:47,896 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:34:47,896 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:34:48,154 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:34:48,154 INFO L272 AbstractInterpreter]: Visited 110 different actions 317 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:34:48,158 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:34:48,158 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:34:48,796 INFO L227 lantSequenceWeakener]: Weakened 81 states. On average, predicates are now at 71.19% of their original sizes. [2018-11-07 20:34:48,797 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:34:50,359 INFO L415 sIntCurrentIteration]: We unified 332 AI predicates to 332 [2018-11-07 20:34:50,359 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:34:50,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:34:50,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-07 20:34:50,360 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:34:50,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 20:34:50,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 20:34:50,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-11-07 20:34:50,361 INFO L87 Difference]: Start difference. First operand 17272 states and 23268 transitions. Second operand 13 states. [2018-11-07 20:34:55,920 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:35:45,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 20:35:45,736 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:35:45,742 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:35:45,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:35:45 BoogieIcfgContainer [2018-11-07 20:35:45,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:35:45,744 INFO L168 Benchmark]: Toolchain (without parser) took 211182.70 ms. Allocated memory was 1.5 GB in the beginning and 6.1 GB in the end (delta: 4.5 GB). Free memory was 1.4 GB in the beginning and 4.3 GB in the end (delta: -2.8 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-11-07 20:35:45,745 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:35:45,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2394.06 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:35:45,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 390.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-11-07 20:35:45,748 INFO L168 Benchmark]: Boogie Preprocessor took 339.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2018-11-07 20:35:45,749 INFO L168 Benchmark]: RCFGBuilder took 9069.63 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 165.2 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.2 MB). Peak memory consumption was 672.2 MB. Max. memory is 7.1 GB. [2018-11-07 20:35:45,750 INFO L168 Benchmark]: TraceAbstraction took 198983.73 ms. Allocated memory was 2.5 GB in the beginning and 6.1 GB in the end (delta: 3.5 GB). Free memory was 2.2 GB in the beginning and 4.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 20:35:45,756 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2394.06 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 390.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 820.0 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 339.86 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9069.63 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 165.2 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 25.2 MB). Peak memory consumption was 672.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198983.73 ms. Allocated memory was 2.5 GB in the beginning and 6.1 GB in the end (delta: 3.5 GB). Free memory was 2.2 GB in the beginning and 4.3 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 171]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 171). Cancelled while BasicCegarLoop was constructing difference of abstraction (17272states) and FLOYD_HOARE automaton (currently 16 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (16435 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 198.8s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 185.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4969 SDtfs, 19860 SDslu, 2847 SDs, 0 SdLazy, 35200 SolverSat, 6162 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 97.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 901 GetRequests, 778 SyntacticMatches, 57 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17272occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.7s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9975153115444856 AbsIntWeakeningRatio, 0.10259433962264151 AbsIntAvgWeakeningVarsNumRemoved, 12.358490566037736 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 282 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 1372 NumberOfCodeBlocks, 1372 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1365 ConstructedInterpolants, 0 QuantifiedInterpolants, 1119647 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 547/950 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown