java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 08:29:36,362 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 08:29:36,364 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 08:29:36,377 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 08:29:36,377 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 08:29:36,379 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 08:29:36,380 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 08:29:36,382 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 08:29:36,384 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 08:29:36,385 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 08:29:36,386 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 08:29:36,386 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 08:29:36,387 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 08:29:36,388 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 08:29:36,390 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 08:29:36,390 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 08:29:36,391 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 08:29:36,393 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 08:29:36,395 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 08:29:36,397 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 08:29:36,398 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 08:29:36,400 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 08:29:36,402 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 08:29:36,403 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 08:29:36,403 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 08:29:36,404 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 08:29:36,405 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 08:29:36,406 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 08:29:36,407 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 08:29:36,408 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 08:29:36,408 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 08:29:36,409 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 08:29:36,409 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 08:29:36,410 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 08:29:36,411 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 08:29:36,412 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 08:29:36,412 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 08:29:36,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 08:29:36,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 08:29:36,442 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 08:29:36,442 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 08:29:36,443 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 08:29:36,443 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 08:29:36,443 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 08:29:36,443 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 08:29:36,444 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 08:29:36,444 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 08:29:36,444 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 08:29:36,444 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 08:29:36,444 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 08:29:36,445 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 08:29:36,446 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 08:29:36,446 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 08:29:36,447 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 08:29:36,447 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 08:29:36,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 08:29:36,447 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 08:29:36,447 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 08:29:36,449 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 08:29:36,449 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 08:29:36,449 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 08:29:36,449 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 08:29:36,449 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 08:29:36,450 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:29:36,450 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 08:29:36,450 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 08:29:36,450 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 08:29:36,451 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 08:29:36,451 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 08:29:36,451 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 08:29:36,451 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 08:29:36,451 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 08:29:36,453 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 08:29:36,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 08:29:36,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 08:29:36,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 08:29:36,559 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 08:29:36,559 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 08:29:36,560 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label22_true-unreach-call.c [2018-11-07 08:29:36,635 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcd61d8e/f980f3f98f6742ffa939c0bd0b2024e7/FLAG3667c35e6 [2018-11-07 08:29:37,277 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 08:29:37,278 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label22_true-unreach-call.c [2018-11-07 08:29:37,294 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcd61d8e/f980f3f98f6742ffa939c0bd0b2024e7/FLAG3667c35e6 [2018-11-07 08:29:37,311 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ddcd61d8e/f980f3f98f6742ffa939c0bd0b2024e7 [2018-11-07 08:29:37,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 08:29:37,326 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 08:29:37,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 08:29:37,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 08:29:37,335 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 08:29:37,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:37" (1/1) ... [2018-11-07 08:29:37,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bb93b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:37, skipping insertion in model container [2018-11-07 08:29:37,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:29:37" (1/1) ... [2018-11-07 08:29:37,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 08:29:37,437 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 08:29:38,022 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:29:38,027 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 08:29:38,216 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 08:29:38,236 INFO L193 MainTranslator]: Completed translation [2018-11-07 08:29:38,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38 WrapperNode [2018-11-07 08:29:38,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 08:29:38,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 08:29:38,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 08:29:38,240 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 08:29:38,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,403 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 08:29:38,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 08:29:38,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 08:29:38,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 08:29:38,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... [2018-11-07 08:29:38,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 08:29:38,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 08:29:38,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 08:29:38,532 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 08:29:38,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 08:29:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 08:29:38,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 08:29:38,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 08:29:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 08:29:38,609 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 08:29:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 08:29:38,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 08:29:38,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 08:29:38,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 08:29:42,812 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 08:29:42,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:42 BoogieIcfgContainer [2018-11-07 08:29:42,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 08:29:42,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 08:29:42,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 08:29:42,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 08:29:42,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:29:37" (1/3) ... [2018-11-07 08:29:42,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc534b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:29:42, skipping insertion in model container [2018-11-07 08:29:42,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:29:38" (2/3) ... [2018-11-07 08:29:42,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dc534b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:29:42, skipping insertion in model container [2018-11-07 08:29:42,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:29:42" (3/3) ... [2018-11-07 08:29:42,824 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label22_true-unreach-call.c [2018-11-07 08:29:42,835 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 08:29:42,845 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 08:29:42,864 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 08:29:42,905 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 08:29:42,906 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 08:29:42,906 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 08:29:42,906 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 08:29:42,906 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 08:29:42,907 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 08:29:42,907 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 08:29:42,907 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 08:29:42,939 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-11-07 08:29:42,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-11-07 08:29:42,950 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:42,952 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] [2018-11-07 08:29:42,954 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:42,961 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:42,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1190540220, now seen corresponding path program 1 times [2018-11-07 08:29:42,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:43,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:43,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:43,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:43,026 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:43,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:43,527 WARN L179 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:29:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:43,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:29:43,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 08:29:43,670 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:29:43,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:29:43,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:29:43,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 08:29:43,702 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-11-07 08:29:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:45,687 INFO L93 Difference]: Finished difference Result 790 states and 1382 transitions. [2018-11-07 08:29:45,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:29:45,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 62 [2018-11-07 08:29:45,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:45,714 INFO L225 Difference]: With dead ends: 790 [2018-11-07 08:29:45,714 INFO L226 Difference]: Without dead ends: 495 [2018-11-07 08:29:45,724 INFO L604 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 [2018-11-07 08:29:45,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2018-11-07 08:29:45,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 488. [2018-11-07 08:29:45,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-11-07 08:29:45,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 849 transitions. [2018-11-07 08:29:45,842 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 849 transitions. Word has length 62 [2018-11-07 08:29:45,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:45,843 INFO L480 AbstractCegarLoop]: Abstraction has 488 states and 849 transitions. [2018-11-07 08:29:45,843 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:29:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 849 transitions. [2018-11-07 08:29:45,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-11-07 08:29:45,861 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:45,862 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:29:45,862 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:45,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:45,863 INFO L82 PathProgramCache]: Analyzing trace with hash -424874524, now seen corresponding path program 1 times [2018-11-07 08:29:45,863 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:45,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:45,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:45,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:45,867 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:45,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:46,237 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:29:46,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:29:46,237 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:29:46,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:29:46,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:29:46,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:29:46,241 INFO L87 Difference]: Start difference. First operand 488 states and 849 transitions. Second operand 5 states. [2018-11-07 08:29:50,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:50,635 INFO L93 Difference]: Finished difference Result 1731 states and 3162 transitions. [2018-11-07 08:29:50,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 08:29:50,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2018-11-07 08:29:50,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:50,657 INFO L225 Difference]: With dead ends: 1731 [2018-11-07 08:29:50,657 INFO L226 Difference]: Without dead ends: 1249 [2018-11-07 08:29:50,663 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:29:50,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2018-11-07 08:29:50,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1032. [2018-11-07 08:29:50,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1032 states. [2018-11-07 08:29:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1658 transitions. [2018-11-07 08:29:50,747 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1658 transitions. Word has length 138 [2018-11-07 08:29:50,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:50,748 INFO L480 AbstractCegarLoop]: Abstraction has 1032 states and 1658 transitions. [2018-11-07 08:29:50,748 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:29:50,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1658 transitions. [2018-11-07 08:29:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-11-07 08:29:50,759 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:50,760 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:29:50,760 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:50,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:50,760 INFO L82 PathProgramCache]: Analyzing trace with hash 291958583, now seen corresponding path program 1 times [2018-11-07 08:29:50,760 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:50,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:50,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:50,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:50,762 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:50,976 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:50,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:29:50,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 08:29:50,977 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:29:50,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 08:29:50,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 08:29:50,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 08:29:50,978 INFO L87 Difference]: Start difference. First operand 1032 states and 1658 transitions. Second operand 5 states. [2018-11-07 08:29:54,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:29:54,938 INFO L93 Difference]: Finished difference Result 3665 states and 6086 transitions. [2018-11-07 08:29:54,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 08:29:54,942 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2018-11-07 08:29:54,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:29:54,962 INFO L225 Difference]: With dead ends: 3665 [2018-11-07 08:29:54,963 INFO L226 Difference]: Without dead ends: 2639 [2018-11-07 08:29:54,970 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:29:54,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2018-11-07 08:29:55,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2604. [2018-11-07 08:29:55,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2604 states. [2018-11-07 08:29:55,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2604 states to 2604 states and 3728 transitions. [2018-11-07 08:29:55,058 INFO L78 Accepts]: Start accepts. Automaton has 2604 states and 3728 transitions. Word has length 149 [2018-11-07 08:29:55,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:29:55,060 INFO L480 AbstractCegarLoop]: Abstraction has 2604 states and 3728 transitions. [2018-11-07 08:29:55,060 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 08:29:55,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2604 states and 3728 transitions. [2018-11-07 08:29:55,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2018-11-07 08:29:55,067 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:29:55,068 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:29:55,068 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:29:55,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:55,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1216572799, now seen corresponding path program 1 times [2018-11-07 08:29:55,069 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:29:55,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:55,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:55,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:29:55,070 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:29:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:56,024 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:56,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:56,025 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:29:56,027 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 195 with the following transitions: [2018-11-07 08:29:56,030 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:29:56,106 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:29:56,106 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:29:57,466 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:29:57,467 INFO L272 AbstractInterpreter]: Visited 140 different actions 406 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 08:29:57,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:29:57,515 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:29:57,515 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:29:57,515 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 08:29:57,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:29:57,536 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:29:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:29:57,738 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:29:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:57,998 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:29:58,315 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:29:58,347 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:29:58,348 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-11-07 08:29:58,348 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:29:58,349 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:29:58,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:29:58,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:29:58,350 INFO L87 Difference]: Start difference. First operand 2604 states and 3728 transitions. Second operand 3 states. [2018-11-07 08:30:00,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:30:00,868 INFO L93 Difference]: Finished difference Result 5998 states and 8831 transitions. [2018-11-07 08:30:00,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:30:00,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 194 [2018-11-07 08:30:00,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:30:00,888 INFO L225 Difference]: With dead ends: 5998 [2018-11-07 08:30:00,888 INFO L226 Difference]: Without dead ends: 3400 [2018-11-07 08:30:00,900 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 388 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-11-07 08:30:00,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3400 states. [2018-11-07 08:30:00,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3400 to 3204. [2018-11-07 08:30:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3204 states. [2018-11-07 08:30:00,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 4559 transitions. [2018-11-07 08:30:00,983 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 4559 transitions. Word has length 194 [2018-11-07 08:30:00,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:30:00,984 INFO L480 AbstractCegarLoop]: Abstraction has 3204 states and 4559 transitions. [2018-11-07 08:30:00,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:30:00,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 4559 transitions. [2018-11-07 08:30:00,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-07 08:30:00,991 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:30:00,991 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, 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] [2018-11-07 08:30:00,992 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:30:00,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:00,992 INFO L82 PathProgramCache]: Analyzing trace with hash -1652950013, now seen corresponding path program 1 times [2018-11-07 08:30:00,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:30:00,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:00,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:00,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:00,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:30:01,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:01,251 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 08:30:01,664 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 110 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 08:30:01,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:01,665 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:30:01,665 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 220 with the following transitions: [2018-11-07 08:30:01,665 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:30:01,670 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:30:01,670 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:30:01,964 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:30:01,965 INFO L272 AbstractInterpreter]: Visited 89 different actions 89 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-07 08:30:02,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:02,005 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:30:02,568 INFO L227 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 73.78% of their original sizes. [2018-11-07 08:30:02,568 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:30:02,838 INFO L415 sIntCurrentIteration]: We unified 218 AI predicates to 218 [2018-11-07 08:30:02,838 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:30:02,839 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:30:02,839 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 08:30:02,839 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:30:02,840 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 08:30:02,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 08:30:02,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 08:30:02,840 INFO L87 Difference]: Start difference. First operand 3204 states and 4559 transitions. Second operand 6 states. [2018-11-07 08:30:57,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:30:57,726 INFO L93 Difference]: Finished difference Result 6594 states and 9332 transitions. [2018-11-07 08:30:57,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 08:30:57,727 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 219 [2018-11-07 08:30:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:30:57,743 INFO L225 Difference]: With dead ends: 6594 [2018-11-07 08:30:57,743 INFO L226 Difference]: Without dead ends: 3396 [2018-11-07 08:30:57,752 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:30:57,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3396 states. [2018-11-07 08:30:57,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3396 to 3394. [2018-11-07 08:30:57,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3394 states. [2018-11-07 08:30:57,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3394 states to 3394 states and 4758 transitions. [2018-11-07 08:30:57,829 INFO L78 Accepts]: Start accepts. Automaton has 3394 states and 4758 transitions. Word has length 219 [2018-11-07 08:30:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:30:57,829 INFO L480 AbstractCegarLoop]: Abstraction has 3394 states and 4758 transitions. [2018-11-07 08:30:57,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 08:30:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3394 states and 4758 transitions. [2018-11-07 08:30:57,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 300 [2018-11-07 08:30:57,838 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:30:57,838 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:30:57,838 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:30:57,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:57,839 INFO L82 PathProgramCache]: Analyzing trace with hash -49027407, now seen corresponding path program 1 times [2018-11-07 08:30:57,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:30:57,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:57,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:57,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:30:57,844 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:30:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:58,449 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 115 proven. 98 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-07 08:30:58,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:58,450 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:30:58,450 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 300 with the following transitions: [2018-11-07 08:30:58,451 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [641], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:30:58,456 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:30:58,456 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:30:58,855 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:30:58,855 INFO L272 AbstractInterpreter]: Visited 141 different actions 418 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-11-07 08:30:58,863 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:30:58,863 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:30:58,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:30:58,863 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:30:58,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:30:58,874 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:30:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:30:58,979 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:30:59,236 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 115 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-11-07 08:30:59,237 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:30:59,396 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-07 08:30:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 115 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:30:59,846 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:30:59,847 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 14 [2018-11-07 08:30:59,847 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:30:59,848 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 08:30:59,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 08:30:59,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-07 08:30:59,849 INFO L87 Difference]: Start difference. First operand 3394 states and 4758 transitions. Second operand 9 states. [2018-11-07 08:31:05,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:31:05,561 INFO L93 Difference]: Finished difference Result 12832 states and 19690 transitions. [2018-11-07 08:31:05,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 08:31:05,561 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 299 [2018-11-07 08:31:05,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:31:05,619 INFO L225 Difference]: With dead ends: 12832 [2018-11-07 08:31:05,619 INFO L226 Difference]: Without dead ends: 9634 [2018-11-07 08:31:05,648 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 594 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=182, Invalid=418, Unknown=0, NotChecked=0, Total=600 [2018-11-07 08:31:05,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9634 states. [2018-11-07 08:31:05,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9634 to 9414. [2018-11-07 08:31:05,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9414 states. [2018-11-07 08:31:05,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9414 states to 9414 states and 13202 transitions. [2018-11-07 08:31:05,909 INFO L78 Accepts]: Start accepts. Automaton has 9414 states and 13202 transitions. Word has length 299 [2018-11-07 08:31:05,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:31:05,909 INFO L480 AbstractCegarLoop]: Abstraction has 9414 states and 13202 transitions. [2018-11-07 08:31:05,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 08:31:05,910 INFO L276 IsEmpty]: Start isEmpty. Operand 9414 states and 13202 transitions. [2018-11-07 08:31:05,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2018-11-07 08:31:05,933 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:31:05,933 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:31:05,934 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:31:05,934 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:31:05,934 INFO L82 PathProgramCache]: Analyzing trace with hash 176466842, now seen corresponding path program 1 times [2018-11-07 08:31:05,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:31:05,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:31:05,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:31:05,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:31:05,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:31:05,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:31:06,451 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 241 proven. 72 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-07 08:31:06,451 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:31:06,451 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:31:06,452 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 337 with the following transitions: [2018-11-07 08:31:06,452 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:31:06,460 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:31:06,460 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:31:06,758 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 08:31:06,759 INFO L272 AbstractInterpreter]: Visited 126 different actions 246 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 08:31:06,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:31:06,765 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 08:31:07,197 INFO L227 lantSequenceWeakener]: Weakened 333 states. On average, predicates are now at 75.49% of their original sizes. [2018-11-07 08:31:07,198 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 08:31:07,290 INFO L415 sIntCurrentIteration]: We unified 335 AI predicates to 335 [2018-11-07 08:31:07,291 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 08:31:07,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:31:07,291 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-07 08:31:07,291 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:31:07,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 08:31:07,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 08:31:07,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-11-07 08:31:07,292 INFO L87 Difference]: Start difference. First operand 9414 states and 13202 transitions. Second operand 10 states. [2018-11-07 08:31:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:31:52,981 INFO L93 Difference]: Finished difference Result 18834 states and 26543 transitions. [2018-11-07 08:31:52,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 08:31:52,981 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 336 [2018-11-07 08:31:52,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:31:53,022 INFO L225 Difference]: With dead ends: 18834 [2018-11-07 08:31:53,022 INFO L226 Difference]: Without dead ends: 9806 [2018-11-07 08:31:53,057 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 344 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2018-11-07 08:31:53,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9806 states. [2018-11-07 08:31:53,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9806 to 9799. [2018-11-07 08:31:53,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9799 states. [2018-11-07 08:31:53,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9799 states to 9799 states and 13685 transitions. [2018-11-07 08:31:53,271 INFO L78 Accepts]: Start accepts. Automaton has 9799 states and 13685 transitions. Word has length 336 [2018-11-07 08:31:53,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:31:53,271 INFO L480 AbstractCegarLoop]: Abstraction has 9799 states and 13685 transitions. [2018-11-07 08:31:53,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 08:31:53,272 INFO L276 IsEmpty]: Start isEmpty. Operand 9799 states and 13685 transitions. [2018-11-07 08:31:53,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-07 08:31:53,294 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:31:53,295 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:31:53,295 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:31:53,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:31:53,296 INFO L82 PathProgramCache]: Analyzing trace with hash 679560161, now seen corresponding path program 1 times [2018-11-07 08:31:53,296 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:31:53,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:31:53,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:31:53,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:31:53,297 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:31:53,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:31:53,733 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 08:31:53,734 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:31:53,734 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:31:53,734 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-11-07 08:31:53,734 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [510], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [550], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:31:53,738 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:31:53,738 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:31:54,256 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:31:54,257 INFO L272 AbstractInterpreter]: Visited 127 different actions 378 times. Merged at 7 different actions 21 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:31:54,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:31:54,264 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:31:54,264 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:31:54,264 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:31:54,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:31:54,273 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:31:54,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:31:54,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:31:54,452 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2018-11-07 08:31:54,452 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:31:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2018-11-07 08:31:54,667 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:31:54,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-11-07 08:31:54,668 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:31:54,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:31:54,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:31:54,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:31:54,669 INFO L87 Difference]: Start difference. First operand 9799 states and 13685 transitions. Second operand 3 states. [2018-11-07 08:31:56,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:31:56,707 INFO L93 Difference]: Finished difference Result 21322 states and 31066 transitions. [2018-11-07 08:31:56,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:31:56,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 337 [2018-11-07 08:31:56,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:31:56,764 INFO L225 Difference]: With dead ends: 21322 [2018-11-07 08:31:56,765 INFO L226 Difference]: Without dead ends: 12492 [2018-11-07 08:31:56,797 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 673 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 08:31:56,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12492 states. [2018-11-07 08:31:57,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12492 to 12372. [2018-11-07 08:31:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12372 states. [2018-11-07 08:31:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12372 states to 12372 states and 17085 transitions. [2018-11-07 08:31:57,282 INFO L78 Accepts]: Start accepts. Automaton has 12372 states and 17085 transitions. Word has length 337 [2018-11-07 08:31:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:31:57,282 INFO L480 AbstractCegarLoop]: Abstraction has 12372 states and 17085 transitions. [2018-11-07 08:31:57,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:31:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 12372 states and 17085 transitions. [2018-11-07 08:31:57,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-11-07 08:31:57,310 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:31:57,310 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 08:31:57,311 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:31:57,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:31:57,311 INFO L82 PathProgramCache]: Analyzing trace with hash -1769096679, now seen corresponding path program 1 times [2018-11-07 08:31:57,311 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:31:57,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:31:57,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:31:57,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:31:57,312 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:31:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:31:57,715 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 171 proven. 0 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-11-07 08:31:57,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 08:31:57,716 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 08:31:57,716 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:31:57,716 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 08:31:57,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 08:31:57,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 08:31:57,717 INFO L87 Difference]: Start difference. First operand 12372 states and 17085 transitions. Second operand 4 states. [2018-11-07 08:32:00,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:32:00,246 INFO L93 Difference]: Finished difference Result 27578 states and 40665 transitions. [2018-11-07 08:32:00,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 08:32:00,249 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 341 [2018-11-07 08:32:00,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:32:00,330 INFO L225 Difference]: With dead ends: 27578 [2018-11-07 08:32:00,331 INFO L226 Difference]: Without dead ends: 16175 [2018-11-07 08:32:00,372 INFO L604 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 [2018-11-07 08:32:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2018-11-07 08:32:00,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 15581. [2018-11-07 08:32:00,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15581 states. [2018-11-07 08:32:00,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15581 states to 15581 states and 21473 transitions. [2018-11-07 08:32:00,753 INFO L78 Accepts]: Start accepts. Automaton has 15581 states and 21473 transitions. Word has length 341 [2018-11-07 08:32:00,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:32:00,753 INFO L480 AbstractCegarLoop]: Abstraction has 15581 states and 21473 transitions. [2018-11-07 08:32:00,754 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 08:32:00,754 INFO L276 IsEmpty]: Start isEmpty. Operand 15581 states and 21473 transitions. [2018-11-07 08:32:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-11-07 08:32:00,784 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:32:00,784 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:32:00,785 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:32:00,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:32:00,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1231289652, now seen corresponding path program 1 times [2018-11-07 08:32:00,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:32:00,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:32:00,786 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:32:00,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:32:00,786 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:32:00,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:32:01,423 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 238 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:32:01,423 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:32:01,423 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:32:01,424 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 343 with the following transitions: [2018-11-07 08:32:01,424 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [854], [857], [861], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:32:01,428 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:32:01,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:32:01,766 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:32:01,766 INFO L272 AbstractInterpreter]: Visited 157 different actions 457 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-11-07 08:32:01,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:32:01,808 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:32:01,808 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:32:01,808 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:32:01,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:32:01,825 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:32:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:32:01,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:32:02,089 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-11-07 08:32:02,089 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:32:02,224 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-11-07 08:32:02,244 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 08:32:02,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-11-07 08:32:02,245 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 08:32:02,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 08:32:02,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 08:32:02,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:32:02,246 INFO L87 Difference]: Start difference. First operand 15581 states and 21473 transitions. Second operand 3 states. [2018-11-07 08:32:03,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 08:32:03,584 INFO L93 Difference]: Finished difference Result 36789 states and 52254 transitions. [2018-11-07 08:32:03,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 08:32:03,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 342 [2018-11-07 08:32:03,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 08:32:03,659 INFO L225 Difference]: With dead ends: 36789 [2018-11-07 08:32:03,659 INFO L226 Difference]: Without dead ends: 21789 [2018-11-07 08:32:03,712 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 689 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-07 08:32:03,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21789 states. [2018-11-07 08:32:04,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21789 to 21740. [2018-11-07 08:32:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21740 states. [2018-11-07 08:32:04,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21740 states to 21740 states and 29101 transitions. [2018-11-07 08:32:04,141 INFO L78 Accepts]: Start accepts. Automaton has 21740 states and 29101 transitions. Word has length 342 [2018-11-07 08:32:04,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 08:32:04,142 INFO L480 AbstractCegarLoop]: Abstraction has 21740 states and 29101 transitions. [2018-11-07 08:32:04,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 08:32:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 21740 states and 29101 transitions. [2018-11-07 08:32:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2018-11-07 08:32:04,203 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 08:32:04,204 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 08:32:04,204 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 08:32:04,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:32:04,205 INFO L82 PathProgramCache]: Analyzing trace with hash 1400023186, now seen corresponding path program 1 times [2018-11-07 08:32:04,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 08:32:04,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:32:04,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:32:04,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 08:32:04,206 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 08:32:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:32:04,702 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-11-07 08:32:04,702 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:32:04,702 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 08:32:04,703 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 375 with the following transitions: [2018-11-07 08:32:04,703 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [397], [399], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [777], [781], [785], [789], [793], [797], [808], [812], [816], [820], [824], [828], [832], [843], [847], [851], [862], [866], [870], [874], [878], [889], [893], [897], [901], [905], [909], [913], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [971], [975], [979], [983], [987], [991], [1002], [1013], [1017], [1021], [1024], [1029], [1031], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-11-07 08:32:04,708 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 08:32:04,708 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 08:32:07,881 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 08:32:07,881 INFO L272 AbstractInterpreter]: Visited 191 different actions 752 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 28 variables. [2018-11-07 08:32:07,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 08:32:07,889 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 08:32:07,889 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 08:32:07,889 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 08:32:07,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 08:32:07,898 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 08:32:08,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 08:32:08,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 08:32:11,081 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 13 [2018-11-07 08:32:11,254 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 111 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:32:11,254 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 08:32:11,573 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 238 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 08:32:11,594 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 08:32:11,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 5] total 13 [2018-11-07 08:32:11,594 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 08:32:11,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 08:32:11,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 08:32:11,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=112, Unknown=2, NotChecked=0, Total=156 [2018-11-07 08:32:11,596 INFO L87 Difference]: Start difference. First operand 21740 states and 29101 transitions. Second operand 11 states. Received shutdown request... [2018-11-07 08:33:39,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 08:33:39,321 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 08:33:39,326 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 08:33:39,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:33:39 BoogieIcfgContainer [2018-11-07 08:33:39,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 08:33:39,328 INFO L168 Benchmark]: Toolchain (without parser) took 242003.20 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 145.8 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 08:33:39,329 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. [2018-11-07 08:33:39,329 INFO L168 Benchmark]: CACSL2BoogieTranslator took 910.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:33:39,330 INFO L168 Benchmark]: Boogie Procedure Inliner took 163.69 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -852.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2018-11-07 08:33:39,331 INFO L168 Benchmark]: Boogie Preprocessor took 128.32 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 08:33:39,331 INFO L168 Benchmark]: RCFGBuilder took 4283.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 175.1 MB). Peak memory consumption was 175.1 MB. Max. memory is 7.1 GB. [2018-11-07 08:33:39,332 INFO L168 Benchmark]: TraceAbstraction took 236510.80 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.3 GB in the end (delta: 756.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-11-07 08:33:39,337 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 910.05 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 66.1 MB). Peak memory consumption was 66.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 163.69 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 744.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -852.0 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.32 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4283.05 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 175.1 MB). Peak memory consumption was 175.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236510.80 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 1.3 GB in the end (delta: 756.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 171]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 171). Cancelled while BasicCegarLoop was constructing difference of abstraction (21740states) and FLOYD_HOARE automaton (currently 25 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (63468 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 236.4s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 213.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3024 SDtfs, 10082 SDslu, 2189 SDs, 0 SdLazy, 15690 SolverSat, 3719 SolverUnsat, 91 SolverUnknown, 0 SolverNotchecked, 180.4s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 3748 GetRequests, 3633 SyntacticMatches, 10 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 17.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21740occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.6s AbstIntTime, 7 AbstIntIterations, 2 AbstIntStrong, 0.9975338429686251 AbsIntWeakeningRatio, 0.11211573236889692 AbsIntAvgWeakeningVarsNumRemoved, 18.28390596745027 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 1447 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 4337 NumberOfCodeBlocks, 4337 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 5862 ConstructedInterpolants, 3 QuantifiedInterpolants, 4925803 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2585 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 21 InterpolantComputations, 10 PerfectInterpolantSequences, 4043/4530 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown