java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:55:50,391 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:55:50,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:55:50,411 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:55:50,411 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:55:50,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:55:50,413 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:55:50,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:55:50,417 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:55:50,418 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:55:50,419 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:55:50,419 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:55:50,420 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:55:50,421 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:55:50,422 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:55:50,423 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:55:50,424 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:55:50,426 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:55:50,428 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:55:50,430 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:55:50,431 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:55:50,432 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:55:50,435 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:55:50,435 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:55:50,435 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:55:50,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:55:50,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:55:50,438 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:55:50,439 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:55:50,440 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:55:50,440 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:55:50,441 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:55:50,441 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:55:50,441 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:55:50,442 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:55:50,443 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:55:50,444 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:55:50,459 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:55:50,459 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:55:50,460 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:55:50,461 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:55:50,461 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:55:50,461 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:55:50,461 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:55:50,461 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:55:50,462 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:55:50,462 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:55:50,462 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:55:50,462 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:55:50,463 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:55:50,463 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:55:50,463 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:55:50,464 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:55:50,464 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:55:50,464 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:55:50,464 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:55:50,464 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:55:50,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:55:50,465 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:55:50,465 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:55:50,465 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:55:50,465 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:55:50,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:55:50,466 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:55:50,466 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:55:50,466 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:55:50,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:55:50,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:55:50,467 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:55:50,467 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:55:50,467 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:55:50,510 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:55:50,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:55:50,529 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:55:50,530 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:55:50,531 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:55:50,532 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c [2018-10-24 21:55:50,591 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3930c210e/68788baa5e0a41d7bd3c1bbdda639e58/FLAG3d7fd6f50 [2018-10-24 21:55:51,281 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:55:51,282 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label12_true-unreach-call.c [2018-10-24 21:55:51,304 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3930c210e/68788baa5e0a41d7bd3c1bbdda639e58/FLAG3d7fd6f50 [2018-10-24 21:55:51,324 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3930c210e/68788baa5e0a41d7bd3c1bbdda639e58 [2018-10-24 21:55:51,334 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:55:51,336 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:55:51,338 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:55:51,338 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:55:51,342 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:55:51,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:55:51" (1/1) ... [2018-10-24 21:55:51,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da13f02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:51, skipping insertion in model container [2018-10-24 21:55:51,347 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:55:51" (1/1) ... [2018-10-24 21:55:51,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:55:51,454 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:55:52,216 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:55:52,222 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:55:52,479 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:55:52,503 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:55:52,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52 WrapperNode [2018-10-24 21:55:52,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:55:52,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:55:52,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:55:52,508 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:55:52,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,856 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:55:52,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:55:52,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:55:52,857 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:55:52,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,945 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... [2018-10-24 21:55:52,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:55:52,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:55:52,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:55:52,999 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:55:53,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:55:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:55:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:55:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:55:53,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:55:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:55:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:55:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:55:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:55:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:55:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:55:59,358 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:55:59,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:55:59 BoogieIcfgContainer [2018-10-24 21:55:59,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:55:59,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:55:59,361 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:55:59,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:55:59,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:55:51" (1/3) ... [2018-10-24 21:55:59,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a686e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:55:59, skipping insertion in model container [2018-10-24 21:55:59,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:55:52" (2/3) ... [2018-10-24 21:55:59,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a686e6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:55:59, skipping insertion in model container [2018-10-24 21:55:59,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:55:59" (3/3) ... [2018-10-24 21:55:59,369 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label12_true-unreach-call.c [2018-10-24 21:55:59,380 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:55:59,392 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:55:59,412 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:55:59,455 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:55:59,456 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:55:59,456 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:55:59,456 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:55:59,456 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:55:59,456 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:55:59,456 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:55:59,457 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:55:59,502 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 21:55:59,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-10-24 21:55:59,514 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:59,516 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] [2018-10-24 21:55:59,519 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:59,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:59,528 INFO L82 PathProgramCache]: Analyzing trace with hash 806508676, now seen corresponding path program 1 times [2018-10-24 21:55:59,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:59,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:59,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:59,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:59,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:56:00,014 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:56:00,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:56:00,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:56:00,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:56:00,090 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:00,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:56:00,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:56:00,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:56:00,114 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-24 21:56:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:56:07,194 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-24 21:56:07,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:56:07,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2018-10-24 21:56:07,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:56:07,223 INFO L225 Difference]: With dead ends: 1156 [2018-10-24 21:56:07,223 INFO L226 Difference]: Without dead ends: 744 [2018-10-24 21:56:07,234 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 [2018-10-24 21:56:07,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-24 21:56:07,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-24 21:56:07,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-24 21:56:07,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-10-24 21:56:07,348 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 46 [2018-10-24 21:56:07,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:56:07,349 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-10-24 21:56:07,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:56:07,349 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-10-24 21:56:07,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-10-24 21:56:07,357 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:56:07,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:56:07,358 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:56:07,358 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:07,358 INFO L82 PathProgramCache]: Analyzing trace with hash 875777906, now seen corresponding path program 1 times [2018-10-24 21:56:07,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:56:07,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:07,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:56:07,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:07,361 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:56:07,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:56:07,641 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:56:07,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:56:07,642 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 21:56:07,642 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:07,645 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 21:56:07,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 21:56:07,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 21:56:07,645 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-10-24 21:56:14,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:56:14,276 INFO L93 Difference]: Finished difference Result 2194 states and 4083 transitions. [2018-10-24 21:56:14,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:56:14,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-10-24 21:56:14,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:56:14,296 INFO L225 Difference]: With dead ends: 2194 [2018-10-24 21:56:14,297 INFO L226 Difference]: Without dead ends: 1456 [2018-10-24 21:56:14,301 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:56:14,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2018-10-24 21:56:14,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1436. [2018-10-24 21:56:14,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1436 states. [2018-10-24 21:56:14,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1436 states to 1436 states and 2550 transitions. [2018-10-24 21:56:14,391 INFO L78 Accepts]: Start accepts. Automaton has 1436 states and 2550 transitions. Word has length 116 [2018-10-24 21:56:14,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:56:14,392 INFO L481 AbstractCegarLoop]: Abstraction has 1436 states and 2550 transitions. [2018-10-24 21:56:14,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 21:56:14,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1436 states and 2550 transitions. [2018-10-24 21:56:14,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 21:56:14,407 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:56:14,407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:56:14,407 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:56:14,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:14,408 INFO L82 PathProgramCache]: Analyzing trace with hash -545095373, now seen corresponding path program 1 times [2018-10-24 21:56:14,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:56:14,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:14,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:56:14,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:14,411 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:56:14,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:56:14,742 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:56:14,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:56:14,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:56:14,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:14,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:56:14,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:56:14,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:56:14,745 INFO L87 Difference]: Start difference. First operand 1436 states and 2550 transitions. Second operand 6 states. [2018-10-24 21:56:19,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:56:19,474 INFO L93 Difference]: Finished difference Result 3936 states and 7024 transitions. [2018-10-24 21:56:19,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:56:19,479 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-24 21:56:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:56:19,496 INFO L225 Difference]: With dead ends: 3936 [2018-10-24 21:56:19,496 INFO L226 Difference]: Without dead ends: 2506 [2018-10-24 21:56:19,504 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:56:19,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2506 states. [2018-10-24 21:56:19,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2506 to 2479. [2018-10-24 21:56:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2479 states. [2018-10-24 21:56:19,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2479 states to 2479 states and 3996 transitions. [2018-10-24 21:56:19,600 INFO L78 Accepts]: Start accepts. Automaton has 2479 states and 3996 transitions. Word has length 145 [2018-10-24 21:56:19,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:56:19,600 INFO L481 AbstractCegarLoop]: Abstraction has 2479 states and 3996 transitions. [2018-10-24 21:56:19,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:56:19,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2479 states and 3996 transitions. [2018-10-24 21:56:19,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-10-24 21:56:19,606 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:56:19,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:56:19,606 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:56:19,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:19,607 INFO L82 PathProgramCache]: Analyzing trace with hash -1167752721, now seen corresponding path program 1 times [2018-10-24 21:56:19,607 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:56:19,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:19,608 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:56:19,608 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:19,608 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:56:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:56:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:56:19,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:56:19,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:56:19,884 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:19,884 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:56:19,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:56:19,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:56:19,885 INFO L87 Difference]: Start difference. First operand 2479 states and 3996 transitions. Second operand 6 states. [2018-10-24 21:56:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:56:23,608 INFO L93 Difference]: Finished difference Result 6052 states and 9912 transitions. [2018-10-24 21:56:23,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:56:23,609 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-10-24 21:56:23,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:56:23,635 INFO L225 Difference]: With dead ends: 6052 [2018-10-24 21:56:23,636 INFO L226 Difference]: Without dead ends: 3579 [2018-10-24 21:56:23,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:56:23,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3579 states. [2018-10-24 21:56:23,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3579 to 3547. [2018-10-24 21:56:23,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3547 states. [2018-10-24 21:56:23,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3547 states to 3547 states and 4975 transitions. [2018-10-24 21:56:23,774 INFO L78 Accepts]: Start accepts. Automaton has 3547 states and 4975 transitions. Word has length 163 [2018-10-24 21:56:23,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:56:23,774 INFO L481 AbstractCegarLoop]: Abstraction has 3547 states and 4975 transitions. [2018-10-24 21:56:23,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:56:23,774 INFO L276 IsEmpty]: Start isEmpty. Operand 3547 states and 4975 transitions. [2018-10-24 21:56:23,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2018-10-24 21:56:23,779 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:56:23,779 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:56:23,779 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:56:23,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:23,780 INFO L82 PathProgramCache]: Analyzing trace with hash 874866507, now seen corresponding path program 1 times [2018-10-24 21:56:23,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:56:23,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:23,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:56:23,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:23,781 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:56:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:56:24,070 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:56:24,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:56:24,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:56:24,071 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:24,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:56:24,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:56:24,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:56:24,072 INFO L87 Difference]: Start difference. First operand 3547 states and 4975 transitions. Second operand 4 states. [2018-10-24 21:56:27,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:56:27,508 INFO L93 Difference]: Finished difference Result 8466 states and 11943 transitions. [2018-10-24 21:56:27,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:56:27,509 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 229 [2018-10-24 21:56:27,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:56:27,541 INFO L225 Difference]: With dead ends: 8466 [2018-10-24 21:56:27,541 INFO L226 Difference]: Without dead ends: 4925 [2018-10-24 21:56:27,559 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:56:27,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4925 states. [2018-10-24 21:56:27,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4925 to 4925. [2018-10-24 21:56:27,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4925 states. [2018-10-24 21:56:27,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4925 states to 4925 states and 6609 transitions. [2018-10-24 21:56:27,674 INFO L78 Accepts]: Start accepts. Automaton has 4925 states and 6609 transitions. Word has length 229 [2018-10-24 21:56:27,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:56:27,674 INFO L481 AbstractCegarLoop]: Abstraction has 4925 states and 6609 transitions. [2018-10-24 21:56:27,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:56:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4925 states and 6609 transitions. [2018-10-24 21:56:27,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-10-24 21:56:27,683 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:56:27,683 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:56:27,683 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:56:27,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:27,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1028530099, now seen corresponding path program 1 times [2018-10-24 21:56:27,684 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:56:27,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:27,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:56:27,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:56:27,685 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:56:27,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:56:28,299 WARN L179 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-10-24 21:56:28,796 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 221 proven. 69 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-24 21:56:28,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:56:28,796 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:56:28,797 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 348 with the following transitions: [2018-10-24 21:56:28,799 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 21:56:28,875 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:56:28,875 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:56:31,101 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:56:32,046 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:56:32,047 INFO L272 AbstractInterpreter]: Visited 136 different actions 136 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 21:56:32,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:32,059 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:56:34,818 INFO L232 lantSequenceWeakener]: Weakened 336 states. On average, predicates are now at 77.73% of their original sizes. [2018-10-24 21:56:34,818 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:56:35,256 INFO L413 sIntCurrentIteration]: We have 346 unified AI predicates [2018-10-24 21:56:35,257 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:56:35,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:56:35,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 15 [2018-10-24 21:56:35,258 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:56:35,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-24 21:56:35,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-24 21:56:35,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:56:35,260 INFO L87 Difference]: Start difference. First operand 4925 states and 6609 transitions. Second operand 8 states. [2018-10-24 21:57:05,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:57:05,241 INFO L93 Difference]: Finished difference Result 10184 states and 13590 transitions. [2018-10-24 21:57:05,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 21:57:05,241 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 347 [2018-10-24 21:57:05,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:57:05,264 INFO L225 Difference]: With dead ends: 10184 [2018-10-24 21:57:05,265 INFO L226 Difference]: Without dead ends: 5265 [2018-10-24 21:57:05,282 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 348 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 21:57:05,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5265 states. [2018-10-24 21:57:05,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5265 to 5263. [2018-10-24 21:57:05,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5263 states. [2018-10-24 21:57:05,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5263 states to 5263 states and 6955 transitions. [2018-10-24 21:57:05,415 INFO L78 Accepts]: Start accepts. Automaton has 5263 states and 6955 transitions. Word has length 347 [2018-10-24 21:57:05,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:57:05,416 INFO L481 AbstractCegarLoop]: Abstraction has 5263 states and 6955 transitions. [2018-10-24 21:57:05,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-24 21:57:05,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5263 states and 6955 transitions. [2018-10-24 21:57:05,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2018-10-24 21:57:05,429 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:57:05,429 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-10-24 21:57:05,430 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:57:05,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:05,430 INFO L82 PathProgramCache]: Analyzing trace with hash -194390703, now seen corresponding path program 1 times [2018-10-24 21:57:05,430 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:57:05,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:05,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:57:05,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:57:05,432 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:57:05,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:57:05,779 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-24 21:57:06,578 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 233 proven. 236 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-10-24 21:57:06,578 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:57:06,578 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:57:06,579 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 440 with the following transitions: [2018-10-24 21:57:06,579 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [447], [449], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 21:57:06,586 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:57:06,588 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:57:07,739 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:57:23,061 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:57:23,062 INFO L272 AbstractInterpreter]: Visited 140 different actions 541 times. Merged at 5 different actions 14 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 21:57:23,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:57:23,067 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:57:26,775 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 77.91% of their original sizes. [2018-10-24 21:57:26,775 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:58:15,187 INFO L413 sIntCurrentIteration]: We have 438 unified AI predicates [2018-10-24 21:58:15,188 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:58:15,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:58:15,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [7] total 21 [2018-10-24 21:58:15,188 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:58:15,189 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:58:15,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:58:15,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:58:15,190 INFO L87 Difference]: Start difference. First operand 5263 states and 6955 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 21:59:35,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 21:59:35,923 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:59:35,928 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:59:35,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:59:35 BoogieIcfgContainer [2018-10-24 21:59:35,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:59:35,929 INFO L168 Benchmark]: Toolchain (without parser) took 224594.11 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 428.8 MB. Max. memory is 7.1 GB. [2018-10-24 21:59:35,931 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-10-24 21:59:35,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1167.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:59:35,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 350.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -853.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:59:35,933 INFO L168 Benchmark]: Boogie Preprocessor took 142.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2018-10-24 21:59:35,934 INFO L168 Benchmark]: RCFGBuilder took 6360.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 264.5 MB). Peak memory consumption was 264.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:59:35,935 INFO L168 Benchmark]: TraceAbstraction took 216567.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 176.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:59:35,940 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1167.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 350.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 742.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -853.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 142.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6360.58 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 264.5 MB). Peak memory consumption was 264.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 216567.99 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 3.6 GB in the end (delta: -1.7 GB). Peak memory consumption was 176.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was constructing difference of abstraction (5263states) and FLOYD_HOARE automaton (currently 17 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (327 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 216.4s OverallTime, 7 OverallIterations, 5 TraceHistogramMax, 136.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 953 SDtfs, 7472 SDslu, 598 SDs, 0 SdLazy, 10095 SolverSat, 2996 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 56.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 833 GetRequests, 702 SyntacticMatches, 78 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 51.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5263occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 19.7s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9963398402839394 AbsIntWeakeningRatio, 0.08928571428571429 AbsIntAvgWeakeningVarsNumRemoved, 621.954081632653 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 81 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1485 NumberOfCodeBlocks, 1485 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1478 ConstructedInterpolants, 0 QuantifiedInterpolants, 2315865 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 860/1165 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown