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/Problem17_label21_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 03:32:11,261 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 03:32:11,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 03:32:11,279 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 03:32:11,279 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 03:32:11,280 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 03:32:11,281 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 03:32:11,283 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 03:32:11,285 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 03:32:11,286 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 03:32:11,286 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 03:32:11,287 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 03:32:11,288 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 03:32:11,288 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 03:32:11,290 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 03:32:11,290 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 03:32:11,291 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 03:32:11,293 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 03:32:11,295 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 03:32:11,300 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 03:32:11,301 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 03:32:11,302 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 03:32:11,304 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 03:32:11,305 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 03:32:11,305 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 03:32:11,306 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 03:32:11,307 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 03:32:11,308 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 03:32:11,308 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 03:32:11,312 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 03:32:11,312 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 03:32:11,314 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 03:32:11,314 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 03:32:11,314 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 03:32:11,315 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 03:32:11,316 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 03:32:11,317 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 [2018-10-27 03:32:11,344 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 03:32:11,345 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 03:32:11,345 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 03:32:11,346 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 03:32:11,346 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 03:32:11,346 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 03:32:11,346 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 03:32:11,346 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 03:32:11,347 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 03:32:11,347 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 03:32:11,347 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 03:32:11,347 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 03:32:11,351 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 03:32:11,351 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 03:32:11,351 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 03:32:11,351 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 03:32:11,351 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 03:32:11,353 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 03:32:11,353 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 03:32:11,354 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 03:32:11,354 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 03:32:11,354 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 03:32:11,354 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 03:32:11,354 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 03:32:11,355 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 03:32:11,355 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 03:32:11,355 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 03:32:11,355 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 03:32:11,356 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 03:32:11,356 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 03:32:11,356 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 03:32:11,356 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 03:32:11,356 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 03:32:11,357 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 03:32:11,404 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 03:32:11,416 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 03:32:11,420 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 03:32:11,422 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 03:32:11,422 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 03:32:11,423 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label21_true-unreach-call.c [2018-10-27 03:32:11,488 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a9411f96/564f3c69b5be47c68bd1be9e4d519bb3/FLAGa23d2a3b3 [2018-10-27 03:32:12,188 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 03:32:12,189 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label21_true-unreach-call.c [2018-10-27 03:32:12,219 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a9411f96/564f3c69b5be47c68bd1be9e4d519bb3/FLAGa23d2a3b3 [2018-10-27 03:32:12,235 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6a9411f96/564f3c69b5be47c68bd1be9e4d519bb3 [2018-10-27 03:32:12,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 03:32:12,247 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 03:32:12,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 03:32:12,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 03:32:12,252 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 03:32:12,253 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:32:12" (1/1) ... [2018-10-27 03:32:12,256 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d9de6d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:12, skipping insertion in model container [2018-10-27 03:32:12,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:32:12" (1/1) ... [2018-10-27 03:32:12,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 03:32:12,379 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 03:32:13,381 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:32:13,386 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 03:32:13,783 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 03:32:13,808 INFO L193 MainTranslator]: Completed translation [2018-10-27 03:32:13,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13 WrapperNode [2018-10-27 03:32:13,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 03:32:13,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 03:32:13,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 03:32:13,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 03:32:13,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:13,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 03:32:14,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 03:32:14,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 03:32:14,332 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 03:32:14,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,367 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,456 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (1/1) ... [2018-10-27 03:32:14,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 03:32:14,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 03:32:14,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 03:32:14,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 03:32:14,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (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 03:32:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 03:32:14,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 03:32:14,637 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 03:32:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 03:32:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 03:32:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 03:32:14,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 03:32:14,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 03:32:14,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 03:32:14,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 03:32:26,354 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 03:32:26,355 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:32:26 BoogieIcfgContainer [2018-10-27 03:32:26,355 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 03:32:26,358 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 03:32:26,358 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 03:32:26,362 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 03:32:26,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:32:12" (1/3) ... [2018-10-27 03:32:26,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613b46e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:32:26, skipping insertion in model container [2018-10-27 03:32:26,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:32:13" (2/3) ... [2018-10-27 03:32:26,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@613b46e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:32:26, skipping insertion in model container [2018-10-27 03:32:26,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:32:26" (3/3) ... [2018-10-27 03:32:26,366 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label21_true-unreach-call.c [2018-10-27 03:32:26,374 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 03:32:26,384 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 03:32:26,403 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 03:32:26,447 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 03:32:26,448 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 03:32:26,448 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 03:32:26,448 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 03:32:26,448 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 03:32:26,448 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 03:32:26,449 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 03:32:26,449 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 03:32:26,484 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-27 03:32:26,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-10-27 03:32:26,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:32:26,496 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:32:26,499 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:32:26,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:32:26,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1861558100, now seen corresponding path program 1 times [2018-10-27 03:32:26,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:32:26,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:26,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:32:26,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:26,568 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:32:26,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:32:27,094 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 03:32:27,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:32:27,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:32:27,098 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:32:27,105 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:32:27,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:32:27,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:32:27,125 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-27 03:32:40,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:32:40,110 INFO L93 Difference]: Finished difference Result 2166 states and 4013 transitions. [2018-10-27 03:32:40,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:32:40,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2018-10-27 03:32:40,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:32:40,147 INFO L225 Difference]: With dead ends: 2166 [2018-10-27 03:32:40,147 INFO L226 Difference]: Without dead ends: 1556 [2018-10-27 03:32:40,157 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:32:40,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2018-10-27 03:32:40,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1068. [2018-10-27 03:32:40,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-10-27 03:32:40,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1850 transitions. [2018-10-27 03:32:40,297 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1850 transitions. Word has length 66 [2018-10-27 03:32:40,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:32:40,298 INFO L481 AbstractCegarLoop]: Abstraction has 1068 states and 1850 transitions. [2018-10-27 03:32:40,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:32:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1850 transitions. [2018-10-27 03:32:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-10-27 03:32:40,307 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:32:40,308 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:32:40,308 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:32:40,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:32:40,308 INFO L82 PathProgramCache]: Analyzing trace with hash -436141222, now seen corresponding path program 1 times [2018-10-27 03:32:40,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:32:40,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:40,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:32:40,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:40,310 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:32:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:32:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:32:40,632 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:32:40,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:32:40,632 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:32:40,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:32:40,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:32:40,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:32:40,635 INFO L87 Difference]: Start difference. First operand 1068 states and 1850 transitions. Second operand 6 states. [2018-10-27 03:32:51,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:32:51,135 INFO L93 Difference]: Finished difference Result 3059 states and 5419 transitions. [2018-10-27 03:32:51,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:32:51,136 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-10-27 03:32:51,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:32:51,151 INFO L225 Difference]: With dead ends: 3059 [2018-10-27 03:32:51,151 INFO L226 Difference]: Without dead ends: 1997 [2018-10-27 03:32:51,158 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 03:32:51,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2018-10-27 03:32:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1975. [2018-10-27 03:32:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1975 states. [2018-10-27 03:32:51,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1975 states to 1975 states and 3181 transitions. [2018-10-27 03:32:51,242 INFO L78 Accepts]: Start accepts. Automaton has 1975 states and 3181 transitions. Word has length 142 [2018-10-27 03:32:51,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:32:51,242 INFO L481 AbstractCegarLoop]: Abstraction has 1975 states and 3181 transitions. [2018-10-27 03:32:51,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:32:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 1975 states and 3181 transitions. [2018-10-27 03:32:51,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-10-27 03:32:51,257 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:32:51,257 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 03:32:51,258 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:32:51,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:32:51,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1261890222, now seen corresponding path program 1 times [2018-10-27 03:32:51,261 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:32:51,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:51,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:32:51,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:51,263 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:32:51,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:32:51,534 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:32:51,534 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:32:51,534 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 03:32:51,534 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:32:51,535 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 03:32:51,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 03:32:51,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 03:32:51,536 INFO L87 Difference]: Start difference. First operand 1975 states and 3181 transitions. Second operand 6 states. [2018-10-27 03:32:56,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:32:56,997 INFO L93 Difference]: Finished difference Result 4880 states and 7834 transitions. [2018-10-27 03:32:56,999 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 03:32:56,999 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-10-27 03:32:57,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:32:57,018 INFO L225 Difference]: With dead ends: 4880 [2018-10-27 03:32:57,018 INFO L226 Difference]: Without dead ends: 2911 [2018-10-27 03:32:57,029 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 03:32:57,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2911 states. [2018-10-27 03:32:57,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2911 to 2880. [2018-10-27 03:32:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2880 states. [2018-10-27 03:32:57,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 3936 transitions. [2018-10-27 03:32:57,115 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 3936 transitions. Word has length 146 [2018-10-27 03:32:57,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:32:57,116 INFO L481 AbstractCegarLoop]: Abstraction has 2880 states and 3936 transitions. [2018-10-27 03:32:57,116 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 03:32:57,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 3936 transitions. [2018-10-27 03:32:57,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-27 03:32:57,119 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:32:57,120 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 03:32:57,120 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:32:57,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:32:57,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1548926097, now seen corresponding path program 1 times [2018-10-27 03:32:57,121 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:32:57,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:57,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:32:57,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:32:57,122 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:32:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:32:57,343 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 03:32:57,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:32:57,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:32:57,344 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:32:57,345 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:32:57,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:32:57,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:32:57,346 INFO L87 Difference]: Start difference. First operand 2880 states and 3936 transitions. Second operand 4 states. [2018-10-27 03:33:06,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:33:06,037 INFO L93 Difference]: Finished difference Result 6193 states and 8604 transitions. [2018-10-27 03:33:06,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:33:06,037 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 176 [2018-10-27 03:33:06,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:33:06,053 INFO L225 Difference]: With dead ends: 6193 [2018-10-27 03:33:06,053 INFO L226 Difference]: Without dead ends: 3319 [2018-10-27 03:33:06,065 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 03:33:06,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2018-10-27 03:33:06,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3319. [2018-10-27 03:33:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3319 states. [2018-10-27 03:33:06,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3319 states to 3319 states and 4442 transitions. [2018-10-27 03:33:06,160 INFO L78 Accepts]: Start accepts. Automaton has 3319 states and 4442 transitions. Word has length 176 [2018-10-27 03:33:06,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:33:06,161 INFO L481 AbstractCegarLoop]: Abstraction has 3319 states and 4442 transitions. [2018-10-27 03:33:06,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:33:06,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3319 states and 4442 transitions. [2018-10-27 03:33:06,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-27 03:33:06,165 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:33:06,166 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 03:33:06,167 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:33:06,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:06,167 INFO L82 PathProgramCache]: Analyzing trace with hash -639298360, now seen corresponding path program 1 times [2018-10-27 03:33:06,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:33:06,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:06,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:06,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:06,169 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:33:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:33:06,536 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-27 03:33:06,537 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:33:06,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:33:06,537 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:33:06,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:33:06,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:33:06,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:33:06,539 INFO L87 Difference]: Start difference. First operand 3319 states and 4442 transitions. Second operand 4 states. [2018-10-27 03:33:17,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:33:17,889 INFO L93 Difference]: Finished difference Result 11927 states and 16176 transitions. [2018-10-27 03:33:17,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:33:17,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 230 [2018-10-27 03:33:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:33:17,935 INFO L225 Difference]: With dead ends: 11927 [2018-10-27 03:33:17,935 INFO L226 Difference]: Without dead ends: 8614 [2018-10-27 03:33:17,948 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 [2018-10-27 03:33:17,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8614 states. [2018-10-27 03:33:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8614 to 8610. [2018-10-27 03:33:18,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8610 states. [2018-10-27 03:33:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8610 states to 8610 states and 10626 transitions. [2018-10-27 03:33:18,141 INFO L78 Accepts]: Start accepts. Automaton has 8610 states and 10626 transitions. Word has length 230 [2018-10-27 03:33:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:33:18,142 INFO L481 AbstractCegarLoop]: Abstraction has 8610 states and 10626 transitions. [2018-10-27 03:33:18,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:33:18,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8610 states and 10626 transitions. [2018-10-27 03:33:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-10-27 03:33:18,150 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:33:18,150 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-27 03:33:18,150 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:33:18,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:18,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1380574037, now seen corresponding path program 1 times [2018-10-27 03:33:18,151 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:33:18,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:18,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:33:18,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:33:18,152 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:33:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:33:18,642 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 118 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 03:33:18,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:33:18,643 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:33:18,644 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 254 with the following transitions: [2018-10-27 03:33:18,646 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1138], [1140], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1231], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 03:33:18,740 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:33:18,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:33:21,394 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-27 03:33:21,729 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 03:33:21,730 INFO L272 AbstractInterpreter]: Visited 115 different actions 115 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-27 03:33:21,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:33:21,765 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 03:33:24,262 INFO L227 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 75.85% of their original sizes. [2018-10-27 03:33:24,262 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 03:33:24,823 INFO L415 sIntCurrentIteration]: We unified 252 AI predicates to 252 [2018-10-27 03:33:24,823 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 03:33:24,824 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 03:33:24,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-10-27 03:33:24,825 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:33:24,825 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 03:33:24,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 03:33:24,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-27 03:33:24,826 INFO L87 Difference]: Start difference. First operand 8610 states and 10626 transitions. Second operand 8 states. [2018-10-27 03:34:58,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:34:58,100 INFO L93 Difference]: Finished difference Result 17650 states and 21714 transitions. [2018-10-27 03:34:58,100 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 03:34:58,101 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 253 [2018-10-27 03:34:58,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:34:58,135 INFO L225 Difference]: With dead ends: 17650 [2018-10-27 03:34:58,135 INFO L226 Difference]: Without dead ends: 9046 [2018-10-27 03:34:58,157 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-27 03:34:58,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2018-10-27 03:34:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 9044. [2018-10-27 03:34:58,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9044 states. [2018-10-27 03:34:58,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9044 states to 9044 states and 11071 transitions. [2018-10-27 03:34:58,350 INFO L78 Accepts]: Start accepts. Automaton has 9044 states and 11071 transitions. Word has length 253 [2018-10-27 03:34:58,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:34:58,351 INFO L481 AbstractCegarLoop]: Abstraction has 9044 states and 11071 transitions. [2018-10-27 03:34:58,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 03:34:58,351 INFO L276 IsEmpty]: Start isEmpty. Operand 9044 states and 11071 transitions. [2018-10-27 03:34:58,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2018-10-27 03:34:58,368 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:34:58,368 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:34:58,369 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:34:58,369 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:34:58,369 INFO L82 PathProgramCache]: Analyzing trace with hash 757180591, now seen corresponding path program 1 times [2018-10-27 03:34:58,369 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:34:58,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:34:58,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:34:58,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:34:58,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:34:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:34:58,795 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-27 03:34:58,795 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 03:34:58,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 03:34:58,796 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 03:34:58,796 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 03:34:58,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 03:34:58,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 03:34:58,798 INFO L87 Difference]: Start difference. First operand 9044 states and 11071 transitions. Second operand 4 states. [2018-10-27 03:35:08,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 03:35:08,572 INFO L93 Difference]: Finished difference Result 22967 states and 28610 transitions. [2018-10-27 03:35:08,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 03:35:08,572 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 296 [2018-10-27 03:35:08,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 03:35:08,633 INFO L225 Difference]: With dead ends: 22967 [2018-10-27 03:35:08,633 INFO L226 Difference]: Without dead ends: 14363 [2018-10-27 03:35:08,674 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 [2018-10-27 03:35:08,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14363 states. [2018-10-27 03:35:09,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14363 to 14351. [2018-10-27 03:35:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14351 states. [2018-10-27 03:35:09,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14351 states to 14351 states and 17249 transitions. [2018-10-27 03:35:09,143 INFO L78 Accepts]: Start accepts. Automaton has 14351 states and 17249 transitions. Word has length 296 [2018-10-27 03:35:09,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 03:35:09,144 INFO L481 AbstractCegarLoop]: Abstraction has 14351 states and 17249 transitions. [2018-10-27 03:35:09,144 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 03:35:09,144 INFO L276 IsEmpty]: Start isEmpty. Operand 14351 states and 17249 transitions. [2018-10-27 03:35:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2018-10-27 03:35:09,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 03:35:09,158 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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 03:35:09,158 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 03:35:09,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 03:35:09,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1570509174, now seen corresponding path program 1 times [2018-10-27 03:35:09,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 03:35:09,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:35:09,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:35:09,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 03:35:09,160 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 03:35:09,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:35:09,761 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 187 proven. 142 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-27 03:35:09,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:35:09,762 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 03:35:09,762 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 306 with the following transitions: [2018-10-27 03:35:09,762 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1094], [1102], [1110], [1118], [1126], [1134], [1138], [1140], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-27 03:35:09,767 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 03:35:09,768 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 03:35:10,381 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-27 03:36:04,293 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-27 03:36:04,293 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-27 03:36:04,294 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 03:36:04,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 03:36:04,295 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:36:04,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 03:36:04,304 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 03:36:04,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 03:36:04,429 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 03:36:04,442 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-27 03:36:04,643 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 03:36:04,644 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 03:36:04,649 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 03:36:04,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:36:04 BoogieIcfgContainer [2018-10-27 03:36:04,649 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 03:36:04,650 INFO L168 Benchmark]: Toolchain (without parser) took 232404.12 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 778.5 MB. Max. memory is 7.1 GB. [2018-10-27 03:36:04,652 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-27 03:36:04,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1561.21 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-27 03:36:04,654 INFO L168 Benchmark]: Boogie Procedure Inliner took 521.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-27 03:36:04,655 INFO L168 Benchmark]: Boogie Preprocessor took 227.88 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. [2018-10-27 03:36:04,655 INFO L168 Benchmark]: RCFGBuilder took 11797.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 455.9 MB). Peak memory consumption was 455.9 MB. Max. memory is 7.1 GB. [2018-10-27 03:36:04,656 INFO L168 Benchmark]: TraceAbstraction took 218291.41 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 293.9 MB. Max. memory is 7.1 GB. [2018-10-27 03:36:04,661 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1561.21 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 521.63 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 796.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -948.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 227.88 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: 42.6 MB). Peak memory consumption was 42.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11797.40 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 455.9 MB). Peak memory consumption was 455.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218291.41 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 293.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 185]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 185). Cancelled while BasicCegarLoop was analyzing trace of length 306 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 218.2s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 152.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3736 SDtfs, 8581 SDslu, 1667 SDs, 0 SdLazy, 16321 SolverSat, 3541 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 118.7s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 295 GetRequests, 263 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14351occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 57.6s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9961538461538461 AbsIntWeakeningRatio, 0.10714285714285714 AbsIntAvgWeakeningVarsNumRemoved, 1053.9484126984128 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 559 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 1309 NumberOfCodeBlocks, 1309 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1302 ConstructedInterpolants, 0 QuantifiedInterpolants, 948345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 700/772 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown