java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label11_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:27:07,513 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:27:07,515 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:27:07,533 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:27:07,533 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:27:07,535 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:27:07,537 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:27:07,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:27:07,541 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:27:07,542 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:27:07,544 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:27:07,545 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:27:07,546 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:27:07,547 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:27:07,548 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:27:07,556 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:27:07,557 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:27:07,562 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:27:07,566 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:27:07,567 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:27:07,573 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:27:07,574 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:27:07,577 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 01:27:07,577 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 01:27:07,577 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 01:27:07,578 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 01:27:07,580 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 01:27:07,581 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 01:27:07,584 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 01:27:07,586 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 01:27:07,586 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 01:27:07,587 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 01:27:07,588 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 01:27:07,589 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 01:27:07,590 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 01:27:07,591 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 01:27:07,592 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:27:07,624 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:27:07,625 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:27:07,625 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:27:07,626 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:27:07,626 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:27:07,626 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:27:07,626 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:27:07,626 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:27:07,627 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:27:07,627 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:27:07,628 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:27:07,628 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:27:07,628 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:27:07,628 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:27:07,629 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:27:07,629 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:27:07,629 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:27:07,630 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:27:07,630 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:27:07,630 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:27:07,630 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:27:07,630 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:27:07,631 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:27:07,631 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:27:07,631 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:27:07,631 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:27:07,631 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:27:07,631 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:27:07,634 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:27:07,634 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:27:07,634 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:27:07,634 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:27:07,634 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:27:07,635 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:27:07,635 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:27:07,635 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:27:07,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:27:07,702 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:27:07,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:27:07,708 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:27:07,709 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:27:07,709 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label11_true-unreach-call.c [2018-10-25 01:27:07,770 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bcf377ebb/d770891b83e34e7d8163a9a79a042bea/FLAG1a0ba8373 [2018-10-25 01:27:08,375 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:27:08,376 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label11_true-unreach-call.c [2018-10-25 01:27:08,414 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bcf377ebb/d770891b83e34e7d8163a9a79a042bea/FLAG1a0ba8373 [2018-10-25 01:27:08,430 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bcf377ebb/d770891b83e34e7d8163a9a79a042bea [2018-10-25 01:27:08,441 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:27:08,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:27:08,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:27:08,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:27:08,448 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:27:08,449 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:27:08" (1/1) ... [2018-10-25 01:27:08,452 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46dcfc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:08, skipping insertion in model container [2018-10-25 01:27:08,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:27:08" (1/1) ... [2018-10-25 01:27:08,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:27:08,559 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:27:09,178 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:27:09,189 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:27:09,371 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:27:09,394 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:27:09,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09 WrapperNode [2018-10-25 01:27:09,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:27:09,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:27:09,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:27:09,396 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:27:09,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,444 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:27:09,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:27:09,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:27:09,681 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:27:09,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... [2018-10-25 01:27:09,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:27:09,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:27:09,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:27:09,799 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:27:09,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:27:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:27:09,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:27:09,870 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:27:09,871 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:27:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:27:09,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:27:09,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:27:09,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:27:14,275 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:27:14,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:27:14 BoogieIcfgContainer [2018-10-25 01:27:14,276 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:27:14,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:27:14,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:27:14,280 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:27:14,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:27:08" (1/3) ... [2018-10-25 01:27:14,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431096c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:27:14, skipping insertion in model container [2018-10-25 01:27:14,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:27:09" (2/3) ... [2018-10-25 01:27:14,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431096c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:27:14, skipping insertion in model container [2018-10-25 01:27:14,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:27:14" (3/3) ... [2018-10-25 01:27:14,284 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label11_true-unreach-call.c [2018-10-25 01:27:14,293 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:27:14,301 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:27:14,319 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:27:14,359 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:27:14,360 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:27:14,360 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:27:14,360 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:27:14,360 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:27:14,360 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:27:14,360 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:27:14,361 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:27:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-25 01:27:14,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-25 01:27:14,402 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:27:14,403 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:27:14,405 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:27:14,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:27:14,412 INFO L82 PathProgramCache]: Analyzing trace with hash 586215740, now seen corresponding path program 1 times [2018-10-25 01:27:14,414 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:27:14,464 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:14,465 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:27:14,465 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:14,465 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:27:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:27:14,943 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:27:14,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:27:14,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:27:15,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:27:15,000 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:27:15,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:27:15,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:27:15,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:27:15,026 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-25 01:27:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:27:17,229 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-10-25 01:27:17,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:27:17,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-10-25 01:27:17,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:27:17,253 INFO L225 Difference]: With dead ends: 782 [2018-10-25 01:27:17,254 INFO L226 Difference]: Without dead ends: 487 [2018-10-25 01:27:17,263 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:27:17,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-10-25 01:27:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-10-25 01:27:17,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-25 01:27:17,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-10-25 01:27:17,356 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 68 [2018-10-25 01:27:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:27:17,357 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-10-25 01:27:17,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:27:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-10-25 01:27:17,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-10-25 01:27:17,367 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:27:17,367 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 01:27:17,367 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:27:17,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:27:17,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1561490343, now seen corresponding path program 1 times [2018-10-25 01:27:17,368 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:27:17,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:17,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:27:17,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:17,370 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:27:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:27:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:27:18,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:27:18,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-25 01:27:18,013 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:27:18,016 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 01:27:18,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 01:27:18,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:27:18,017 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-10-25 01:27:25,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:27:25,622 INFO L93 Difference]: Finished difference Result 1760 states and 3239 transitions. [2018-10-25 01:27:25,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 01:27:25,623 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2018-10-25 01:27:25,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:27:25,639 INFO L225 Difference]: With dead ends: 1760 [2018-10-25 01:27:25,640 INFO L226 Difference]: Without dead ends: 1284 [2018-10-25 01:27:25,646 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-25 01:27:25,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-10-25 01:27:25,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1037. [2018-10-25 01:27:25,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-10-25 01:27:25,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-10-25 01:27:25,751 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 143 [2018-10-25 01:27:25,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:27:25,752 INFO L481 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-10-25 01:27:25,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 01:27:25,754 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-10-25 01:27:25,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-10-25 01:27:25,765 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:27:25,765 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:27:25,766 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:27:25,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:27:25,766 INFO L82 PathProgramCache]: Analyzing trace with hash 1636025592, now seen corresponding path program 1 times [2018-10-25 01:27:25,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:27:25,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:25,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:27:25,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:25,772 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:27:25,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:27:26,127 WARN L179 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:27:26,216 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 122 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:27:26,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:27:26,217 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:27:26,217 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-10-25 01:27:26,220 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], [401], [409], [417], [425], [433], [441], [445], [447], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:27:26,265 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:27:26,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:27:26,965 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:27:26,967 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-25 01:27:26,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:27:26,999 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:27:27,737 INFO L232 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 73.9% of their original sizes. [2018-10-25 01:27:27,737 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:27:27,996 INFO L413 sIntCurrentIteration]: We have 215 unified AI predicates [2018-10-25 01:27:27,996 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:27:27,997 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:27:27,997 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 01:27:27,998 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:27:28,000 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:27:28,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:27:28,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:27:28,001 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 6 states. [2018-10-25 01:29:17,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:29:17,066 INFO L93 Difference]: Finished difference Result 2260 states and 3574 transitions. [2018-10-25 01:29:17,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:29:17,066 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 216 [2018-10-25 01:29:17,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:29:17,074 INFO L225 Difference]: With dead ends: 2260 [2018-10-25 01:29:17,074 INFO L226 Difference]: Without dead ends: 1229 [2018-10-25 01:29:17,078 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 216 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:29:17,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-25 01:29:17,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2018-10-25 01:29:17,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-10-25 01:29:17,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1883 transitions. [2018-10-25 01:29:17,114 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1883 transitions. Word has length 216 [2018-10-25 01:29:17,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:29:17,115 INFO L481 AbstractCegarLoop]: Abstraction has 1227 states and 1883 transitions. [2018-10-25 01:29:17,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:29:17,115 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1883 transitions. [2018-10-25 01:29:17,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-25 01:29:17,120 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:29:17,123 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:29:17,124 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:29:17,124 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:29:17,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1687745886, now seen corresponding path program 1 times [2018-10-25 01:29:17,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:29:17,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:17,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:29:17,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:17,126 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:29:17,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:29:17,785 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-25 01:29:17,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:29:17,786 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:29:17,786 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-10-25 01:29:17,787 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], [401], [409], [417], [425], [433], [441], [445], [447], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [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], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:29:17,794 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:29:17,794 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:29:19,090 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:29:19,091 INFO L272 AbstractInterpreter]: Visited 126 different actions 374 times. Merged at 7 different actions 20 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-25 01:29:19,102 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:29:19,103 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:29:19,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:29:19,103 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:29:19,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:29:19,114 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:29:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:29:19,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:29:31,867 WARN L179 SmtUtils]: Spent 10.33 s on a formula simplification. DAG size of input: 118 DAG size of output: 47 [2018-10-25 01:29:32,053 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-25 01:29:32,054 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:29:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-25 01:29:32,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 01:29:32,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-10-25 01:29:32,577 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:29:32,577 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:29:32,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:29:32,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-10-25 01:29:32,578 INFO L87 Difference]: Start difference. First operand 1227 states and 1883 transitions. Second operand 3 states. [2018-10-25 01:29:36,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:29:36,484 INFO L93 Difference]: Finished difference Result 2966 states and 4885 transitions. [2018-10-25 01:29:36,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:29:36,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 260 [2018-10-25 01:29:36,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:29:36,503 INFO L225 Difference]: With dead ends: 2966 [2018-10-25 01:29:36,504 INFO L226 Difference]: Without dead ends: 1935 [2018-10-25 01:29:36,509 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 519 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 13.0s TimeCoverageRelationStatistics Valid=24, Invalid=47, Unknown=1, NotChecked=0, Total=72 [2018-10-25 01:29:36,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2018-10-25 01:29:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1935. [2018-10-25 01:29:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1935 states. [2018-10-25 01:29:36,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1935 states to 1935 states and 2922 transitions. [2018-10-25 01:29:36,576 INFO L78 Accepts]: Start accepts. Automaton has 1935 states and 2922 transitions. Word has length 260 [2018-10-25 01:29:36,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:29:36,576 INFO L481 AbstractCegarLoop]: Abstraction has 1935 states and 2922 transitions. [2018-10-25 01:29:36,577 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:29:36,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1935 states and 2922 transitions. [2018-10-25 01:29:36,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-10-25 01:29:36,587 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:29:36,587 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:29:36,588 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:29:36,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:29:36,588 INFO L82 PathProgramCache]: Analyzing trace with hash -307629149, now seen corresponding path program 1 times [2018-10-25 01:29:36,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:29:36,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:36,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:29:36,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:36,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:29:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:29:36,851 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-10-25 01:29:36,851 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:29:36,852 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:29:36,852 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:29:36,852 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:29:36,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:29:36,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:29:36,853 INFO L87 Difference]: Start difference. First operand 1935 states and 2922 transitions. Second operand 3 states. [2018-10-25 01:29:38,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:29:38,718 INFO L93 Difference]: Finished difference Result 4248 states and 6732 transitions. [2018-10-25 01:29:38,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:29:38,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 286 [2018-10-25 01:29:38,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:29:38,741 INFO L225 Difference]: With dead ends: 4248 [2018-10-25 01:29:38,741 INFO L226 Difference]: Without dead ends: 2509 [2018-10-25 01:29:38,751 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:29:38,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2018-10-25 01:29:38,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2507. [2018-10-25 01:29:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2018-10-25 01:29:38,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 3708 transitions. [2018-10-25 01:29:38,832 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 3708 transitions. Word has length 286 [2018-10-25 01:29:38,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:29:38,832 INFO L481 AbstractCegarLoop]: Abstraction has 2507 states and 3708 transitions. [2018-10-25 01:29:38,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:29:38,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 3708 transitions. [2018-10-25 01:29:38,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2018-10-25 01:29:38,843 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:29:38,843 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:29:38,844 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:29:38,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:29:38,844 INFO L82 PathProgramCache]: Analyzing trace with hash 748491532, now seen corresponding path program 1 times [2018-10-25 01:29:38,844 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:29:38,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:38,849 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:29:38,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:38,849 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:29:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:29:39,107 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-25 01:29:39,107 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:29:39,107 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:29:39,108 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:29:39,108 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:29:39,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:29:39,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:29:39,110 INFO L87 Difference]: Start difference. First operand 2507 states and 3708 transitions. Second operand 3 states. [2018-10-25 01:29:41,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:29:41,846 INFO L93 Difference]: Finished difference Result 6944 states and 10675 transitions. [2018-10-25 01:29:41,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:29:41,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 291 [2018-10-25 01:29:41,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:29:41,876 INFO L225 Difference]: With dead ends: 6944 [2018-10-25 01:29:41,876 INFO L226 Difference]: Without dead ends: 4633 [2018-10-25 01:29:41,890 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:29:41,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4633 states. [2018-10-25 01:29:42,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4633 to 4633. [2018-10-25 01:29:42,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4633 states. [2018-10-25 01:29:42,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4633 states to 4633 states and 6739 transitions. [2018-10-25 01:29:42,026 INFO L78 Accepts]: Start accepts. Automaton has 4633 states and 6739 transitions. Word has length 291 [2018-10-25 01:29:42,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:29:42,026 INFO L481 AbstractCegarLoop]: Abstraction has 4633 states and 6739 transitions. [2018-10-25 01:29:42,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:29:42,027 INFO L276 IsEmpty]: Start isEmpty. Operand 4633 states and 6739 transitions. [2018-10-25 01:29:42,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-10-25 01:29:42,042 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:29:42,042 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:29:42,043 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:29:42,043 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:29:42,043 INFO L82 PathProgramCache]: Analyzing trace with hash 2041497929, now seen corresponding path program 1 times [2018-10-25 01:29:42,043 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:29:42,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:42,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:29:42,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:29:42,045 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:29:42,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:29:42,647 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 233 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:29:42,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:29:42,648 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:29:42,648 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-10-25 01:29:42,649 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], [401], [409], [417], [425], [433], [441], [445], [447], [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], [680], [685], [687], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:29:42,657 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:29:42,658 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:29:43,431 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:29:43,433 INFO L272 AbstractInterpreter]: Visited 125 different actions 244 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-25 01:29:43,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:29:43,468 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:29:44,557 INFO L232 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 74.4% of their original sizes. [2018-10-25 01:29:44,557 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:29:45,231 INFO L413 sIntCurrentIteration]: We have 299 unified AI predicates [2018-10-25 01:29:45,232 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:29:45,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:29:45,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-10-25 01:29:45,232 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:29:45,233 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-25 01:29:45,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-25 01:29:45,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-10-25 01:29:45,234 INFO L87 Difference]: Start difference. First operand 4633 states and 6739 transitions. Second operand 15 states. Received shutdown request... [2018-10-25 01:31:16,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-25 01:31:16,682 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 01:31:16,689 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 01:31:16,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 01:31:16 BoogieIcfgContainer [2018-10-25 01:31:16,689 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 01:31:16,690 INFO L168 Benchmark]: Toolchain (without parser) took 248248.17 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -392.6 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-25 01:31:16,691 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:31:16,692 INFO L168 Benchmark]: CACSL2BoogieTranslator took 951.30 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-25 01:31:16,693 INFO L168 Benchmark]: Boogie Procedure Inliner took 283.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:31:16,694 INFO L168 Benchmark]: Boogie Preprocessor took 118.51 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. [2018-10-25 01:31:16,694 INFO L168 Benchmark]: RCFGBuilder took 4476.83 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: 192.1 MB). Peak memory consumption was 192.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:31:16,695 INFO L168 Benchmark]: TraceAbstraction took 242412.41 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 183.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-25 01:31:16,701 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 951.30 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 283.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 741.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -831.5 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.51 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 4476.83 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: 192.1 MB). Peak memory consumption was 192.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242412.41 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.8 GB in the end (delta: 183.4 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 189]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 189). Cancelled while BasicCegarLoop was constructing difference of abstraction (4633states) and FLOYD_HOARE automaton (currently 20 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (5301 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 242.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 219.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1648 SDtfs, 3556 SDslu, 878 SDs, 0 SdLazy, 7960 SolverSat, 1374 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 196.5s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1079 GetRequests, 1028 SyntacticMatches, 6 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 14.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4633occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.9s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9979312581063551 AbsIntWeakeningRatio, 0.11284046692607004 AbsIntAvgWeakeningVarsNumRemoved, 7.799610894941634 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 256 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.8s InterpolantComputationTime, 1824 NumberOfCodeBlocks, 1824 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 2075 ConstructedInterpolants, 2 QuantifiedInterpolants, 1525328 SizeOfPredicates, 3 NumberOfNonLiveVariables, 463 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 1183/1503 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown