java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label15_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 21:10:52,477 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 21:10:52,479 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 21:10:52,492 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 21:10:52,492 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 21:10:52,493 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 21:10:52,495 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 21:10:52,497 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 21:10:52,498 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 21:10:52,499 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 21:10:52,500 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 21:10:52,500 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 21:10:52,501 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 21:10:52,502 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 21:10:52,504 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 21:10:52,504 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 21:10:52,505 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 21:10:52,507 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 21:10:52,509 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 21:10:52,511 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 21:10:52,512 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 21:10:52,513 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 21:10:52,516 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 21:10:52,516 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 21:10:52,516 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 21:10:52,517 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 21:10:52,518 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 21:10:52,519 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 21:10:52,520 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 21:10:52,521 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 21:10:52,521 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 21:10:52,522 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 21:10:52,522 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 21:10:52,522 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 21:10:52,523 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 21:10:52,524 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 21:10:52,524 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 21:10:52,549 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 21:10:52,550 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 21:10:52,551 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 21:10:52,551 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 21:10:52,551 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 21:10:52,551 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 21:10:52,551 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 21:10:52,552 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 21:10:52,552 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 21:10:52,552 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 21:10:52,552 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 21:10:52,552 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 21:10:52,553 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 21:10:52,553 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 21:10:52,554 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 21:10:52,554 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 21:10:52,554 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 21:10:52,554 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 21:10:52,554 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 21:10:52,554 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 21:10:52,555 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 21:10:52,555 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 21:10:52,555 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 21:10:52,555 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 21:10:52,555 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 21:10:52,556 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 21:10:52,556 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 21:10:52,556 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 21:10:52,556 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 21:10:52,556 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 21:10:52,557 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 21:10:52,557 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 21:10:52,557 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 21:10:52,557 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 21:10:52,557 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 21:10:52,601 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 21:10:52,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 21:10:52,622 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 21:10:52,624 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 21:10:52,624 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 21:10:52,625 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label15_true-unreach-call.c [2018-11-07 21:10:52,699 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c37eb0e5/86d18ad93a2d485bb440e8d6a7a2a01d/FLAG4b30be978 [2018-11-07 21:10:53,553 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 21:10:53,554 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label15_true-unreach-call.c [2018-11-07 21:10:53,584 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c37eb0e5/86d18ad93a2d485bb440e8d6a7a2a01d/FLAG4b30be978 [2018-11-07 21:10:53,604 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c37eb0e5/86d18ad93a2d485bb440e8d6a7a2a01d [2018-11-07 21:10:53,616 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 21:10:53,620 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 21:10:53,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 21:10:53,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 21:10:53,628 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 21:10:53,629 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:10:53" (1/1) ... [2018-11-07 21:10:53,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a4c63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:53, skipping insertion in model container [2018-11-07 21:10:53,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:10:53" (1/1) ... [2018-11-07 21:10:53,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 21:10:53,785 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 21:10:54,817 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:10:54,822 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 21:10:55,307 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 21:10:55,335 INFO L193 MainTranslator]: Completed translation [2018-11-07 21:10:55,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55 WrapperNode [2018-11-07 21:10:55,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 21:10:55,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 21:10:55,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 21:10:55,337 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 21:10:55,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,665 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 21:10:55,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 21:10:55,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 21:10:55,666 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 21:10:55,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,698 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,803 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (1/1) ... [2018-11-07 21:10:55,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 21:10:55,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 21:10:55,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 21:10:55,913 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 21:10:55,914 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (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 21:10:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 21:10:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 21:10:55,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 21:10:55,984 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 21:10:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 21:10:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 21:10:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 21:10:55,985 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 21:10:55,985 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 21:10:55,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 21:10:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 21:10:55,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 21:10:55,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 21:11:04,132 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 21:11:04,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:11:04 BoogieIcfgContainer [2018-11-07 21:11:04,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 21:11:04,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 21:11:04,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 21:11:04,137 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 21:11:04,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:10:53" (1/3) ... [2018-11-07 21:11:04,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188c7417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:11:04, skipping insertion in model container [2018-11-07 21:11:04,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:10:55" (2/3) ... [2018-11-07 21:11:04,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188c7417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:11:04, skipping insertion in model container [2018-11-07 21:11:04,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:11:04" (3/3) ... [2018-11-07 21:11:04,141 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label15_true-unreach-call.c [2018-11-07 21:11:04,152 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 21:11:04,162 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 21:11:04,179 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 21:11:04,228 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 21:11:04,229 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 21:11:04,229 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 21:11:04,229 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 21:11:04,229 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 21:11:04,229 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 21:11:04,229 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 21:11:04,230 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 21:11:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-11-07 21:11:04,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-11-07 21:11:04,292 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:04,293 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] [2018-11-07 21:11:04,296 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:04,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1389400652, now seen corresponding path program 1 times [2018-11-07 21:11:04,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:04,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:04,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:04,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:04,351 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:04,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:04,785 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 21:11:04,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:11:04,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:11:04,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:04,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:11:04,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:11:04,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:11:04,817 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 4 states. [2018-11-07 21:11:16,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:11:16,307 INFO L93 Difference]: Finished difference Result 2974 states and 5747 transitions. [2018-11-07 21:11:16,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:11:16,309 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-11-07 21:11:16,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:11:16,349 INFO L225 Difference]: With dead ends: 2974 [2018-11-07 21:11:16,350 INFO L226 Difference]: Without dead ends: 2193 [2018-11-07 21:11:16,360 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:11:16,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2193 states. [2018-11-07 21:11:16,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2193 to 2193. [2018-11-07 21:11:16,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2193 states. [2018-11-07 21:11:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 3677 transitions. [2018-11-07 21:11:16,578 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 3677 transitions. Word has length 42 [2018-11-07 21:11:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:11:16,579 INFO L480 AbstractCegarLoop]: Abstraction has 2193 states and 3677 transitions. [2018-11-07 21:11:16,579 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:11:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 3677 transitions. [2018-11-07 21:11:16,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-11-07 21:11:16,590 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:16,592 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:16,593 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:16,594 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:16,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1023255202, now seen corresponding path program 1 times [2018-11-07 21:11:16,594 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:16,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:16,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:16,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:16,598 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:16,930 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:11:16,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:11:16,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 21:11:16,931 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:16,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 21:11:16,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 21:11:16,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 21:11:16,934 INFO L87 Difference]: Start difference. First operand 2193 states and 3677 transitions. Second operand 5 states. [2018-11-07 21:11:26,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:11:26,251 INFO L93 Difference]: Finished difference Result 6600 states and 11248 transitions. [2018-11-07 21:11:26,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:11:26,253 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2018-11-07 21:11:26,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:11:26,283 INFO L225 Difference]: With dead ends: 6600 [2018-11-07 21:11:26,283 INFO L226 Difference]: Without dead ends: 4413 [2018-11-07 21:11:26,292 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:11:26,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2018-11-07 21:11:26,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 4378. [2018-11-07 21:11:26,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4378 states. [2018-11-07 21:11:26,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4378 states to 4378 states and 6986 transitions. [2018-11-07 21:11:26,432 INFO L78 Accepts]: Start accepts. Automaton has 4378 states and 6986 transitions. Word has length 112 [2018-11-07 21:11:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:11:26,433 INFO L480 AbstractCegarLoop]: Abstraction has 4378 states and 6986 transitions. [2018-11-07 21:11:26,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 21:11:26,433 INFO L276 IsEmpty]: Start isEmpty. Operand 4378 states and 6986 transitions. [2018-11-07 21:11:26,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-11-07 21:11:26,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:26,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:11:26,446 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:26,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:26,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1458733739, now seen corresponding path program 1 times [2018-11-07 21:11:26,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:26,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:26,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:26,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:26,451 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:26,689 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:11:26,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:11:26,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 21:11:26,690 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:26,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 21:11:26,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 21:11:26,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 21:11:26,692 INFO L87 Difference]: Start difference. First operand 4378 states and 6986 transitions. Second operand 6 states. [2018-11-07 21:11:31,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:11:31,873 INFO L93 Difference]: Finished difference Result 11002 states and 17598 transitions. [2018-11-07 21:11:31,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:11:31,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-11-07 21:11:31,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:11:31,917 INFO L225 Difference]: With dead ends: 11002 [2018-11-07 21:11:31,918 INFO L226 Difference]: Without dead ends: 6630 [2018-11-07 21:11:31,933 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 21:11:31,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6630 states. [2018-11-07 21:11:32,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6630 to 6590. [2018-11-07 21:11:32,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6590 states. [2018-11-07 21:11:32,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6590 states to 6590 states and 9022 transitions. [2018-11-07 21:11:32,101 INFO L78 Accepts]: Start accepts. Automaton has 6590 states and 9022 transitions. Word has length 139 [2018-11-07 21:11:32,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:11:32,101 INFO L480 AbstractCegarLoop]: Abstraction has 6590 states and 9022 transitions. [2018-11-07 21:11:32,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 21:11:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 6590 states and 9022 transitions. [2018-11-07 21:11:32,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-11-07 21:11:32,106 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:32,106 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:11:32,106 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:32,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:32,107 INFO L82 PathProgramCache]: Analyzing trace with hash 2073244197, now seen corresponding path program 1 times [2018-11-07 21:11:32,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:32,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:32,108 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:32,108 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:32,108 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:32,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:32,332 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-07 21:11:32,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 21:11:32,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 21:11:32,332 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:32,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 21:11:32,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 21:11:32,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:11:32,334 INFO L87 Difference]: Start difference. First operand 6590 states and 9022 transitions. Second operand 4 states. [2018-11-07 21:11:39,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:11:39,710 INFO L93 Difference]: Finished difference Result 26034 states and 36953 transitions. [2018-11-07 21:11:39,711 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 21:11:39,711 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 219 [2018-11-07 21:11:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:11:39,805 INFO L225 Difference]: With dead ends: 26034 [2018-11-07 21:11:39,806 INFO L226 Difference]: Without dead ends: 19450 [2018-11-07 21:11:39,850 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 21:11:39,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19450 states. [2018-11-07 21:11:40,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19450 to 19450. [2018-11-07 21:11:40,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19450 states. [2018-11-07 21:11:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19450 states to 19450 states and 25958 transitions. [2018-11-07 21:11:40,313 INFO L78 Accepts]: Start accepts. Automaton has 19450 states and 25958 transitions. Word has length 219 [2018-11-07 21:11:40,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:11:40,314 INFO L480 AbstractCegarLoop]: Abstraction has 19450 states and 25958 transitions. [2018-11-07 21:11:40,314 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 21:11:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 19450 states and 25958 transitions. [2018-11-07 21:11:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-11-07 21:11:40,328 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:11:40,328 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 21:11:40,329 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:11:40,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:40,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1622044176, now seen corresponding path program 1 times [2018-11-07 21:11:40,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:11:40,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:40,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:11:40,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:11:40,333 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:11:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:11:40,869 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:11:40,870 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:11:40,870 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:11:40,871 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-11-07 21:11:40,880 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1859], [1861], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2272], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:11:40,939 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:11:40,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:11:41,594 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:11:41,596 INFO L272 AbstractInterpreter]: Visited 114 different actions 114 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 21:11:41,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:11:41,640 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:11:42,575 INFO L227 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-07 21:11:42,575 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:11:42,936 INFO L415 sIntCurrentIteration]: We unified 257 AI predicates to 257 [2018-11-07 21:11:42,936 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:11:42,940 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:11:42,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-11-07 21:11:42,941 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:11:42,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-07 21:11:42,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-07 21:11:42,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-11-07 21:11:42,942 INFO L87 Difference]: Start difference. First operand 19450 states and 25958 transitions. Second operand 7 states. [2018-11-07 21:11:52,227 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:12:21,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:12:21,630 INFO L93 Difference]: Finished difference Result 39599 states and 52693 transitions. [2018-11-07 21:12:21,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 21:12:21,630 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 258 [2018-11-07 21:12:21,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:12:21,694 INFO L225 Difference]: With dead ends: 39599 [2018-11-07 21:12:21,694 INFO L226 Difference]: Without dead ends: 20155 [2018-11-07 21:12:21,748 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 258 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-11-07 21:12:21,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20155 states. [2018-11-07 21:12:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20155 to 20153. [2018-11-07 21:12:22,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20153 states. [2018-11-07 21:12:22,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20153 states to 20153 states and 26673 transitions. [2018-11-07 21:12:22,224 INFO L78 Accepts]: Start accepts. Automaton has 20153 states and 26673 transitions. Word has length 258 [2018-11-07 21:12:22,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:12:22,224 INFO L480 AbstractCegarLoop]: Abstraction has 20153 states and 26673 transitions. [2018-11-07 21:12:22,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-07 21:12:22,226 INFO L276 IsEmpty]: Start isEmpty. Operand 20153 states and 26673 transitions. [2018-11-07 21:12:22,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2018-11-07 21:12:22,242 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:12:22,242 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:12:22,243 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:12:22,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:22,243 INFO L82 PathProgramCache]: Analyzing trace with hash -115639021, now seen corresponding path program 1 times [2018-11-07 21:12:22,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:12:22,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:22,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:12:22,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:12:22,246 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:12:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:12:22,821 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:12:23,024 WARN L179 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 21:12:23,462 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-11-07 21:12:23,999 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 164 proven. 259 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 21:12:24,000 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:12:24,000 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:12:24,000 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 446 with the following transitions: [2018-11-07 21:12:24,001 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1859], [1861], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2272], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:12:24,009 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:12:24,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:12:24,371 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:12:24,371 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:12:24,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:12:24,380 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:12:25,303 INFO L227 lantSequenceWeakener]: Weakened 188 states. On average, predicates are now at 77.66% of their original sizes. [2018-11-07 21:12:25,303 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:12:27,448 INFO L415 sIntCurrentIteration]: We unified 444 AI predicates to 444 [2018-11-07 21:12:27,448 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:12:27,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:12:27,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [11] total 25 [2018-11-07 21:12:27,450 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:12:27,451 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 21:12:27,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 21:12:27,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2018-11-07 21:12:27,452 INFO L87 Difference]: Start difference. First operand 20153 states and 26673 transitions. Second operand 16 states. [2018-11-07 21:12:50,520 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:13:07,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:13:07,405 INFO L93 Difference]: Finished difference Result 41141 states and 54235 transitions. [2018-11-07 21:13:07,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-11-07 21:13:07,405 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 445 [2018-11-07 21:13:07,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:13:07,476 INFO L225 Difference]: With dead ends: 41141 [2018-11-07 21:13:07,476 INFO L226 Difference]: Without dead ends: 20444 [2018-11-07 21:13:07,509 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 452 GetRequests, 382 SyntacticMatches, 48 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 397 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2018-11-07 21:13:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20444 states. [2018-11-07 21:13:07,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20444 to 20153. [2018-11-07 21:13:07,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20153 states. [2018-11-07 21:13:07,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20153 states to 20153 states and 26665 transitions. [2018-11-07 21:13:07,906 INFO L78 Accepts]: Start accepts. Automaton has 20153 states and 26665 transitions. Word has length 445 [2018-11-07 21:13:07,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:13:07,906 INFO L480 AbstractCegarLoop]: Abstraction has 20153 states and 26665 transitions. [2018-11-07 21:13:07,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 21:13:07,907 INFO L276 IsEmpty]: Start isEmpty. Operand 20153 states and 26665 transitions. [2018-11-07 21:13:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2018-11-07 21:13:07,937 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:13:07,938 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:13:07,938 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:13:07,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:13:07,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1058810328, now seen corresponding path program 1 times [2018-11-07 21:13:07,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:13:07,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:13:07,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:13:07,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:13:07,940 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:13:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:13:08,877 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 21:13:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 212 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 21:13:11,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:13:11,465 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:13:11,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 787 with the following transitions: [2018-11-07 21:13:11,466 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1859], [1861], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2272], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:13:11,484 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:13:11,485 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:13:12,632 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:13:12,632 INFO L272 AbstractInterpreter]: Visited 537 different actions 1068 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 21:13:12,638 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:13:12,638 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 21:13:13,691 INFO L227 lantSequenceWeakener]: Weakened 477 states. On average, predicates are now at 77.63% of their original sizes. [2018-11-07 21:13:13,692 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:13:14,302 INFO L415 sIntCurrentIteration]: We unified 785 AI predicates to 785 [2018-11-07 21:13:14,302 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 21:13:14,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 21:13:14,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [30] imperfect sequences [11] total 39 [2018-11-07 21:13:14,303 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 21:13:14,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2018-11-07 21:13:14,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2018-11-07 21:13:14,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2018-11-07 21:13:14,304 INFO L87 Difference]: Start difference. First operand 20153 states and 26665 transitions. Second operand 30 states. [2018-11-07 21:13:50,298 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 21:14:18,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 21:14:18,069 INFO L93 Difference]: Finished difference Result 41018 states and 54171 transitions. [2018-11-07 21:14:18,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2018-11-07 21:14:18,069 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 786 [2018-11-07 21:14:18,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 21:14:18,123 INFO L225 Difference]: With dead ends: 41018 [2018-11-07 21:14:18,124 INFO L226 Difference]: Without dead ends: 21574 [2018-11-07 21:14:18,154 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 811 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 765 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=349, Invalid=2731, Unknown=0, NotChecked=0, Total=3080 [2018-11-07 21:14:18,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21574 states. [2018-11-07 21:14:18,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21574 to 20864. [2018-11-07 21:14:18,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20864 states. [2018-11-07 21:14:18,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20864 states to 20864 states and 27386 transitions. [2018-11-07 21:14:18,516 INFO L78 Accepts]: Start accepts. Automaton has 20864 states and 27386 transitions. Word has length 786 [2018-11-07 21:14:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 21:14:18,517 INFO L480 AbstractCegarLoop]: Abstraction has 20864 states and 27386 transitions. [2018-11-07 21:14:18,517 INFO L481 AbstractCegarLoop]: Interpolant automaton has 30 states. [2018-11-07 21:14:18,517 INFO L276 IsEmpty]: Start isEmpty. Operand 20864 states and 27386 transitions. [2018-11-07 21:14:18,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 986 [2018-11-07 21:14:18,571 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 21:14:18,572 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:14:18,572 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 21:14:18,573 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:14:18,573 INFO L82 PathProgramCache]: Analyzing trace with hash 2005107795, now seen corresponding path program 1 times [2018-11-07 21:14:18,573 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 21:14:18,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:14:18,574 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 21:14:18,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 21:14:18,576 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 21:14:18,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 21:14:19,377 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-11-07 21:14:21,029 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 359 proven. 414 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2018-11-07 21:14:21,029 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 21:14:21,029 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 21:14:21,030 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 986 with the following transitions: [2018-11-07 21:14:21,030 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [37], [739], [740], [744], [748], [752], [756], [760], [764], [768], [772], [776], [780], [784], [788], [792], [796], [800], [804], [808], [812], [816], [820], [824], [828], [832], [836], [840], [844], [848], [852], [856], [860], [864], [868], [872], [876], [880], [884], [888], [892], [896], [900], [904], [908], [912], [916], [920], [924], [928], [932], [936], [940], [944], [948], [952], [956], [960], [964], [968], [972], [976], [980], [984], [988], [992], [996], [1000], [1004], [1008], [1012], [1016], [1020], [1024], [1028], [1032], [1036], [1040], [1044], [1048], [1052], [1056], [1060], [1064], [1068], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1184], [1188], [1192], [1196], [1200], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1360], [1364], [1368], [1372], [1376], [1380], [1384], [1388], [1392], [1396], [1400], [1404], [1408], [1412], [1416], [1420], [1424], [1428], [1432], [1436], [1440], [1444], [1448], [1452], [1456], [1460], [1464], [1468], [1472], [1476], [1480], [1484], [1488], [1492], [1496], [1500], [1504], [1508], [1512], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1576], [1580], [1584], [1588], [1592], [1596], [1600], [1604], [1608], [1612], [1616], [1620], [1622], [1623], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1859], [1861], [1864], [1872], [1880], [1888], [1896], [1904], [1912], [1920], [1928], [1936], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2264], [2265], [2269], [2272], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2632], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2995], [2996], [3000], [3004], [3010], [3014], [3016], [3021], [3022], [3023], [3024], [3025], [3026], [3027], [3029], [3030] [2018-11-07 21:14:21,039 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 21:14:21,039 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 21:14:23,044 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 21:14:23,045 INFO L272 AbstractInterpreter]: Visited 538 different actions 1609 times. Merged at 7 different actions 17 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-11-07 21:14:23,056 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 21:14:23,056 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-11-07 21:14:24,781 INFO L227 lantSequenceWeakener]: Weakened 142 states. On average, predicates are now at 78.31% of their original sizes. [2018-11-07 21:14:24,781 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 21:14:24,834 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 21:14:24,839 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 21:14:24,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:14:24 BoogieIcfgContainer [2018-11-07 21:14:24,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 21:14:24,841 INFO L168 Benchmark]: Toolchain (without parser) took 211223.03 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -197.4 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-11-07 21:14:24,842 INFO L168 Benchmark]: CDTParser took 0.27 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 21:14:24,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1714.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-11-07 21:14:24,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 327.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -950.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-11-07 21:14:24,844 INFO L168 Benchmark]: Boogie Preprocessor took 246.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2018-11-07 21:14:24,845 INFO L168 Benchmark]: RCFGBuilder took 8220.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.5 MB). Peak memory consumption was 515.5 MB. Max. memory is 7.1 GB. [2018-11-07 21:14:24,846 INFO L168 Benchmark]: TraceAbstraction took 200705.98 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.5 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 75.1 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 21:14:24,851 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 1714.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 327.98 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -950.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 246.93 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8220.46 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 515.5 MB). Peak memory consumption was 515.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200705.98 ms. Allocated memory was 2.3 GB in the beginning and 4.7 GB in the end (delta: 2.5 GB). Free memory was 1.7 GB in the beginning and 1.6 GB in the end (delta: 75.1 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 114]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 114). Cancelled while BasicCegarLoop was analyzing trace of length 986 with TraceHistMax 5,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 200.6s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 176.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4027 SDtfs, 22149 SDslu, 1363 SDs, 0 SdLazy, 41055 SolverSat, 5399 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.0s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1551 GetRequests, 1402 SyntacticMatches, 50 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1172 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20864occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 4.3s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9981511166179362 AbsIntWeakeningRatio, 0.058299595141700404 AbsIntAvgWeakeningVarsNumRemoved, 15.329554655870446 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 1078 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 2001 NumberOfCodeBlocks, 2001 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1994 ConstructedInterpolants, 0 QuantifiedInterpolants, 5374345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 766/1243 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown