java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:43:57,441 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:43:57,445 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:43:57,457 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:43:57,458 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:43:57,459 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:43:57,460 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:43:57,462 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:43:57,464 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:43:57,464 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:43:57,465 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:43:57,466 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:43:57,467 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:43:57,468 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:43:57,470 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:43:57,471 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:43:57,472 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:43:57,473 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:43:57,475 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:43:57,477 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:43:57,478 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:43:57,479 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:43:57,482 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:43:57,482 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:43:57,483 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:43:57,484 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:43:57,485 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:43:57,485 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:43:57,486 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:43:57,487 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:43:57,488 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:43:57,488 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:43:57,489 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:43:57,489 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:43:57,490 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:43:57,491 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:43:57,491 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:43:57,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:43:57,515 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:43:57,516 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:43:57,516 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:43:57,516 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:43:57,517 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:43:57,517 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:43:57,517 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:43:57,517 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:43:57,517 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:43:57,517 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:43:57,518 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:43:57,518 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:43:57,518 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:43:57,519 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:43:57,519 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:43:57,519 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:43:57,519 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:43:57,520 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:43:57,520 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:43:57,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:43:57,520 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:43:57,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:43:57,521 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:43:57,521 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:43:57,521 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:43:57,521 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:43:57,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:43:57,522 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:43:57,522 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:43:57,522 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:43:57,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:43:57,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:43:57,523 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:43:57,523 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:43:57,523 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:43:57,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:43:57,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:43:57,601 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:43:57,603 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:43:57,603 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:43:57,605 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c [2018-10-27 08:43:57,671 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44753ff21/7ce0f44132224954b56bffcb8b6d0c68/FLAG74b897b19 [2018-10-27 08:43:58,401 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:43:58,402 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label40_true-unreach-call.c [2018-10-27 08:43:58,433 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44753ff21/7ce0f44132224954b56bffcb8b6d0c68/FLAG74b897b19 [2018-10-27 08:43:58,456 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/44753ff21/7ce0f44132224954b56bffcb8b6d0c68 [2018-10-27 08:43:58,469 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:43:58,472 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:43:58,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:43:58,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:43:58,482 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:43:58,483 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:43:58" (1/1) ... [2018-10-27 08:43:58,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31151419 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:43:58, skipping insertion in model container [2018-10-27 08:43:58,488 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:43:58" (1/1) ... [2018-10-27 08:43:58,501 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:43:58,647 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:43:59,696 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:43:59,701 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:44:00,141 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:44:00,173 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:44:00,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00 WrapperNode [2018-10-27 08:44:00,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:44:00,175 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:44:00,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:44:00,176 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:44:00,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:44:00,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:44:00,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:44:00,608 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:44:00,619 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... [2018-10-27 08:44:00,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:44:00,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:44:00,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:44:00,821 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:44:00,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:44:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:44:00,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:44:00,898 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-27 08:44:00,899 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-27 08:44:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:44:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:44:00,900 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:44:00,900 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:44:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:44:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:44:00,901 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:44:00,901 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:44:09,235 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:44:09,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:44:09 BoogieIcfgContainer [2018-10-27 08:44:09,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:44:09,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:44:09,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:44:09,245 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:44:09,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:43:58" (1/3) ... [2018-10-27 08:44:09,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3f5675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:44:09, skipping insertion in model container [2018-10-27 08:44:09,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:44:00" (2/3) ... [2018-10-27 08:44:09,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3f5675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:44:09, skipping insertion in model container [2018-10-27 08:44:09,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:44:09" (3/3) ... [2018-10-27 08:44:09,249 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label40_true-unreach-call.c [2018-10-27 08:44:09,262 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:44:09,283 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:44:09,303 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:44:09,371 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:44:09,371 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:44:09,372 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:44:09,372 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:44:09,372 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:44:09,372 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:44:09,372 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:44:09,373 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:44:09,434 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-27 08:44:09,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-10-27 08:44:09,444 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:09,445 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] [2018-10-27 08:44:09,448 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:09,455 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:09,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1179800183, now seen corresponding path program 1 times [2018-10-27 08:44:09,459 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:09,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:09,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:09,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:09,524 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:09,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:09,985 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:44:10,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:10,106 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:10,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 08:44:10,107 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:10,114 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:44:10,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:44:10,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:44:10,134 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-27 08:44:16,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:16,625 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-27 08:44:16,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:44:16,628 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2018-10-27 08:44:16,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:16,663 INFO L225 Difference]: With dead ends: 2251 [2018-10-27 08:44:16,663 INFO L226 Difference]: Without dead ends: 1474 [2018-10-27 08:44:16,679 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:44:16,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-27 08:44:16,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-27 08:44:16,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-27 08:44:16,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-27 08:44:16,852 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 51 [2018-10-27 08:44:16,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:16,853 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-27 08:44:16,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:44:16,854 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-27 08:44:16,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-10-27 08:44:16,865 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:16,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:16,866 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:16,867 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:16,867 INFO L82 PathProgramCache]: Analyzing trace with hash 1038500593, now seen corresponding path program 1 times [2018-10-27 08:44:16,867 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:16,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:16,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:16,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:16,869 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:16,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:17,234 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:44:17,298 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:17,299 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:17,299 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:44:17,299 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:17,301 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:17,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:17,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:17,302 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 6 states. [2018-10-27 08:44:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:26,055 INFO L93 Difference]: Finished difference Result 4419 states and 8244 transitions. [2018-10-27 08:44:26,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:26,055 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-10-27 08:44:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:26,075 INFO L225 Difference]: With dead ends: 4419 [2018-10-27 08:44:26,076 INFO L226 Difference]: Without dead ends: 2951 [2018-10-27 08:44:26,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:44:26,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-10-27 08:44:26,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2928. [2018-10-27 08:44:26,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-10-27 08:44:26,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 5087 transitions. [2018-10-27 08:44:26,186 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 5087 transitions. Word has length 140 [2018-10-27 08:44:26,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:26,187 INFO L481 AbstractCegarLoop]: Abstraction has 2928 states and 5087 transitions. [2018-10-27 08:44:26,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:44:26,188 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 5087 transitions. [2018-10-27 08:44:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-10-27 08:44:26,201 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:26,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:26,201 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:26,202 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:26,206 INFO L82 PathProgramCache]: Analyzing trace with hash -429800468, now seen corresponding path program 1 times [2018-10-27 08:44:26,206 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:26,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:26,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:26,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:26,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:26,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:26,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:44:26,567 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:26,568 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:26,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:26,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:26,569 INFO L87 Difference]: Start difference. First operand 2928 states and 5087 transitions. Second operand 6 states. [2018-10-27 08:44:36,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:36,270 INFO L93 Difference]: Finished difference Result 10194 states and 17948 transitions. [2018-10-27 08:44:36,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:36,270 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 187 [2018-10-27 08:44:36,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:36,323 INFO L225 Difference]: With dead ends: 10194 [2018-10-27 08:44:36,323 INFO L226 Difference]: Without dead ends: 7272 [2018-10-27 08:44:36,343 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:44:36,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7272 states. [2018-10-27 08:44:36,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7272 to 7208. [2018-10-27 08:44:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7208 states. [2018-10-27 08:44:36,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7208 states to 7208 states and 11881 transitions. [2018-10-27 08:44:36,565 INFO L78 Accepts]: Start accepts. Automaton has 7208 states and 11881 transitions. Word has length 187 [2018-10-27 08:44:36,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:36,566 INFO L481 AbstractCegarLoop]: Abstraction has 7208 states and 11881 transitions. [2018-10-27 08:44:36,566 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:44:36,566 INFO L276 IsEmpty]: Start isEmpty. Operand 7208 states and 11881 transitions. [2018-10-27 08:44:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-27 08:44:36,571 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:36,571 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:44:36,572 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:36,574 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:36,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1302575248, now seen corresponding path program 1 times [2018-10-27 08:44:36,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:36,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:36,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:36,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:36,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:36,920 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:44:36,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:36,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 08:44:36,921 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:36,922 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:36,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:36,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:36,923 INFO L87 Difference]: Start difference. First operand 7208 states and 11881 transitions. Second operand 6 states. [2018-10-27 08:44:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:42,391 INFO L93 Difference]: Finished difference Result 17365 states and 29107 transitions. [2018-10-27 08:44:42,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:44:42,392 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2018-10-27 08:44:42,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:42,451 INFO L225 Difference]: With dead ends: 17365 [2018-10-27 08:44:42,451 INFO L226 Difference]: Without dead ends: 10163 [2018-10-27 08:44:42,479 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:44:42,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10163 states. [2018-10-27 08:44:42,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10163 to 10108. [2018-10-27 08:44:42,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10108 states. [2018-10-27 08:44:42,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10108 states to 10108 states and 14258 transitions. [2018-10-27 08:44:42,754 INFO L78 Accepts]: Start accepts. Automaton has 10108 states and 14258 transitions. Word has length 189 [2018-10-27 08:44:42,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:42,755 INFO L481 AbstractCegarLoop]: Abstraction has 10108 states and 14258 transitions. [2018-10-27 08:44:42,755 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:44:42,755 INFO L276 IsEmpty]: Start isEmpty. Operand 10108 states and 14258 transitions. [2018-10-27 08:44:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-10-27 08:44:42,764 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:42,764 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:44:42,765 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:42,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:42,765 INFO L82 PathProgramCache]: Analyzing trace with hash -1778582221, now seen corresponding path program 1 times [2018-10-27 08:44:42,765 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:42,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:42,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:42,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:42,767 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:43,063 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-10-27 08:44:43,063 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:44:43,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:44:43,064 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:43,065 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:44:43,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:44:43,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:44:43,068 INFO L87 Difference]: Start difference. First operand 10108 states and 14258 transitions. Second operand 4 states. [2018-10-27 08:44:54,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:44:54,099 INFO L93 Difference]: Finished difference Result 28811 states and 41798 transitions. [2018-10-27 08:44:54,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:44:54,100 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 247 [2018-10-27 08:44:54,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:44:54,194 INFO L225 Difference]: With dead ends: 28811 [2018-10-27 08:44:54,195 INFO L226 Difference]: Without dead ends: 18709 [2018-10-27 08:44:54,243 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:44:54,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18709 states. [2018-10-27 08:44:54,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18709 to 18709. [2018-10-27 08:44:54,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18709 states. [2018-10-27 08:44:54,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18709 states to 18709 states and 25926 transitions. [2018-10-27 08:44:54,703 INFO L78 Accepts]: Start accepts. Automaton has 18709 states and 25926 transitions. Word has length 247 [2018-10-27 08:44:54,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:44:54,706 INFO L481 AbstractCegarLoop]: Abstraction has 18709 states and 25926 transitions. [2018-10-27 08:44:54,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:44:54,707 INFO L276 IsEmpty]: Start isEmpty. Operand 18709 states and 25926 transitions. [2018-10-27 08:44:54,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-10-27 08:44:54,733 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:44:54,734 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:44:54,734 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:44:54,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:54,735 INFO L82 PathProgramCache]: Analyzing trace with hash 1669490635, now seen corresponding path program 1 times [2018-10-27 08:44:54,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:44:54,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:54,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:44:54,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:44:54,739 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:44:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:44:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 148 proven. 42 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:44:55,230 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:44:55,230 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:44:55,233 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 292 with the following transitions: [2018-10-27 08:44:55,235 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1931], [1933], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:44:55,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:44:55,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:44:55,974 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:44:55,977 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 08:44:56,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:44:56,021 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:44:56,708 INFO L227 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 77.83% of their original sizes. [2018-10-27 08:44:56,708 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:44:56,974 INFO L415 sIntCurrentIteration]: We unified 290 AI predicates to 290 [2018-10-27 08:44:56,974 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:44:56,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:44:56,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-27 08:44:56,976 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:44:56,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:44:56,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:44:56,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:44:56,978 INFO L87 Difference]: Start difference. First operand 18709 states and 25926 transitions. Second operand 6 states. [2018-10-27 08:45:43,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:45:43,254 INFO L93 Difference]: Finished difference Result 38117 states and 52714 transitions. [2018-10-27 08:45:43,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:45:43,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 291 [2018-10-27 08:45:43,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:45:43,319 INFO L225 Difference]: With dead ends: 38117 [2018-10-27 08:45:43,319 INFO L226 Difference]: Without dead ends: 19414 [2018-10-27 08:45:43,366 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 291 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 08:45:43,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19414 states. [2018-10-27 08:45:43,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19414 to 19412. [2018-10-27 08:45:43,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19412 states. [2018-10-27 08:45:43,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19412 states to 19412 states and 26641 transitions. [2018-10-27 08:45:43,703 INFO L78 Accepts]: Start accepts. Automaton has 19412 states and 26641 transitions. Word has length 291 [2018-10-27 08:45:43,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:45:43,704 INFO L481 AbstractCegarLoop]: Abstraction has 19412 states and 26641 transitions. [2018-10-27 08:45:43,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:45:43,704 INFO L276 IsEmpty]: Start isEmpty. Operand 19412 states and 26641 transitions. [2018-10-27 08:45:43,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2018-10-27 08:45:43,727 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:45:43,728 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:45:43,728 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:45:43,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:45:43,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1087569641, now seen corresponding path program 1 times [2018-10-27 08:45:43,729 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:45:43,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:45:43,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:45:43,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:45:43,730 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:45:43,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:45:44,285 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 08:45:44,465 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 08:45:45,056 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 191 proven. 283 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 08:45:45,056 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:45:45,056 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:45:45,057 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 479 with the following transitions: [2018-10-27 08:45:45,057 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1931], [1933], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-27 08:45:45,064 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:45:45,065 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:45:45,336 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:45:45,336 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 08:45:45,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:45:45,376 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:45:45,877 INFO L227 lantSequenceWeakener]: Weakened 475 states. On average, predicates are now at 77.66% of their original sizes. [2018-10-27 08:45:45,877 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:45:46,334 INFO L415 sIntCurrentIteration]: We unified 477 AI predicates to 477 [2018-10-27 08:45:46,334 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:45:46,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:45:46,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2018-10-27 08:45:46,335 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:45:46,336 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:45:46,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:45:46,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:45:46,336 INFO L87 Difference]: Start difference. First operand 19412 states and 26641 transitions. Second operand 10 states. Received shutdown request... [2018-10-27 08:47:57,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-27 08:47:57,948 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:47:57,954 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:47:57,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:47:57 BoogieIcfgContainer [2018-10-27 08:47:57,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:47:57,955 INFO L168 Benchmark]: Toolchain (without parser) took 239484.42 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -454.0 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-27 08:47:57,956 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:47:57,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1700.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:57,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 432.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.5 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -905.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:57,959 INFO L168 Benchmark]: Boogie Preprocessor took 210.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:57,960 INFO L168 Benchmark]: RCFGBuilder took 8418.56 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 514.8 MB). Peak memory consumption was 514.8 MB. Max. memory is 7.1 GB. [2018-10-27 08:47:57,961 INFO L168 Benchmark]: TraceAbstraction took 228713.73 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -226.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 08:47:57,967 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 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 1700.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 432.08 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.5 MB). Free memory was 1.2 GB in the beginning and 2.1 GB in the end (delta: -905.4 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 210.54 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8418.56 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 514.8 MB). Peak memory consumption was 514.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228713.73 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.6 GB in the beginning and 1.8 GB in the end (delta: -226.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was constructing difference of abstraction (19412states) and FLOYD_HOARE automaton (currently 16 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (33434 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 228.5s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 219.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3190 SDtfs, 15828 SDslu, 1158 SDs, 0 SdLazy, 27792 SolverSat, 6648 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 176.7s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 817 GetRequests, 766 SyntacticMatches, 5 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19412occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9979604527135847 AbsIntWeakeningRatio, 0.07561929595827901 AbsIntAvgWeakeningVarsNumRemoved, 16.528031290743154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 144 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1583 NumberOfCodeBlocks, 1583 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1576 ConstructedInterpolants, 0 QuantifiedInterpolants, 2413257 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 658/983 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown