java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label22_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-23 22:26:14,550 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-23 22:26:14,552 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-23 22:26:14,565 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-23 22:26:14,565 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-23 22:26:14,566 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-23 22:26:14,568 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-23 22:26:14,570 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-23 22:26:14,571 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-23 22:26:14,572 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-23 22:26:14,573 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-23 22:26:14,574 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-23 22:26:14,574 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-23 22:26:14,576 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-23 22:26:14,577 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-23 22:26:14,577 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-23 22:26:14,578 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-23 22:26:14,580 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-23 22:26:14,582 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-23 22:26:14,584 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-23 22:26:14,585 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-23 22:26:14,587 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-23 22:26:14,589 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-23 22:26:14,590 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-23 22:26:14,590 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-23 22:26:14,591 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-23 22:26:14,592 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-23 22:26:14,593 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-23 22:26:14,593 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-23 22:26:14,594 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-23 22:26:14,595 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-23 22:26:14,595 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-23 22:26:14,596 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-23 22:26:14,596 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-23 22:26:14,597 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-23 22:26:14,597 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-23 22:26:14,598 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-23 22:26:14,613 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-23 22:26:14,614 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-23 22:26:14,614 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-23 22:26:14,615 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-23 22:26:14,615 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-23 22:26:14,615 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-23 22:26:14,615 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-23 22:26:14,616 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-23 22:26:14,616 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-23 22:26:14,616 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-23 22:26:14,616 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-23 22:26:14,616 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-23 22:26:14,617 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-23 22:26:14,617 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-23 22:26:14,617 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-23 22:26:14,617 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-23 22:26:14,618 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-23 22:26:14,618 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-23 22:26:14,618 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-23 22:26:14,618 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-23 22:26:14,619 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-23 22:26:14,619 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-23 22:26:14,619 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-23 22:26:14,619 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-23 22:26:14,619 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-23 22:26:14,620 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-23 22:26:14,620 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-23 22:26:14,620 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-23 22:26:14,620 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-23 22:26:14,620 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-23 22:26:14,621 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-23 22:26:14,621 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-23 22:26:14,621 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-23 22:26:14,621 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-23 22:26:14,665 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-23 22:26:14,679 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-23 22:26:14,684 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-23 22:26:14,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-23 22:26:14,686 INFO L276 PluginConnector]: CDTParser initialized [2018-10-23 22:26:14,687 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label22_false-unreach-call_false-termination.c [2018-10-23 22:26:14,755 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d08817b30/a93be798378b453b9044fb9f3ba9c0df/FLAGcded9f035 [2018-10-23 22:26:15,318 INFO L298 CDTParser]: Found 1 translation units. [2018-10-23 22:26:15,322 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label22_false-unreach-call_false-termination.c [2018-10-23 22:26:15,347 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d08817b30/a93be798378b453b9044fb9f3ba9c0df/FLAGcded9f035 [2018-10-23 22:26:15,368 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d08817b30/a93be798378b453b9044fb9f3ba9c0df [2018-10-23 22:26:15,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-23 22:26:15,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-23 22:26:15,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-23 22:26:15,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-23 22:26:15,391 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-23 22:26:15,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:26:15" (1/1) ... [2018-10-23 22:26:15,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322d085d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:15, skipping insertion in model container [2018-10-23 22:26:15,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 10:26:15" (1/1) ... [2018-10-23 22:26:15,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-23 22:26:15,489 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-23 22:26:16,038 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:26:16,042 INFO L189 MainTranslator]: Completed pre-run [2018-10-23 22:26:16,175 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-23 22:26:16,194 INFO L193 MainTranslator]: Completed translation [2018-10-23 22:26:16,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16 WrapperNode [2018-10-23 22:26:16,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-23 22:26:16,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-23 22:26:16,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-23 22:26:16,196 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-23 22:26:16,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-23 22:26:16,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-23 22:26:16,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-23 22:26:16,430 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-23 22:26:16,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (1/1) ... [2018-10-23 22:26:16,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-23 22:26:16,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-23 22:26:16,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-23 22:26:16,544 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-23 22:26:16,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (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 [2018-10-23 22:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-23 22:26:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-23 22:26:16,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-23 22:26:16,603 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-23 22:26:16,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-23 22:26:16,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-23 22:26:16,605 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-23 22:26:16,605 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-23 22:26:20,080 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-23 22:26:20,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:26:20 BoogieIcfgContainer [2018-10-23 22:26:20,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-23 22:26:20,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-23 22:26:20,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-23 22:26:20,088 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-23 22:26:20,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 10:26:15" (1/3) ... [2018-10-23 22:26:20,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4bfbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:26:20, skipping insertion in model container [2018-10-23 22:26:20,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 10:26:16" (2/3) ... [2018-10-23 22:26:20,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4bfbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 10:26:20, skipping insertion in model container [2018-10-23 22:26:20,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 10:26:20" (3/3) ... [2018-10-23 22:26:20,092 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label22_false-unreach-call_false-termination.c [2018-10-23 22:26:20,102 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-23 22:26:20,113 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-23 22:26:20,131 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-23 22:26:20,172 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-23 22:26:20,172 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-23 22:26:20,173 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-23 22:26:20,173 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-23 22:26:20,173 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-23 22:26:20,173 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-23 22:26:20,174 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-23 22:26:20,174 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-23 22:26:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-10-23 22:26:20,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-23 22:26:20,212 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:26:20,213 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] [2018-10-23 22:26:20,216 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:26:20,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:26:20,223 INFO L82 PathProgramCache]: Analyzing trace with hash -874290308, now seen corresponding path program 1 times [2018-10-23 22:26:20,226 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:26:20,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:20,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:26:20,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:20,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:26:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:26:20,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:26:20,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:26:20,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:26:20,552 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:26:20,557 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:26:20,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:26:20,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:26:20,573 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 3 states. [2018-10-23 22:26:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:26:22,807 INFO L93 Difference]: Finished difference Result 691 states and 1226 transitions. [2018-10-23 22:26:22,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:26:22,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-10-23 22:26:22,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:26:22,829 INFO L225 Difference]: With dead ends: 691 [2018-10-23 22:26:22,829 INFO L226 Difference]: Without dead ends: 434 [2018-10-23 22:26:22,838 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:26:22,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2018-10-23 22:26:22,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2018-10-23 22:26:22,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-10-23 22:26:22,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 765 transitions. [2018-10-23 22:26:22,932 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 765 transitions. Word has length 20 [2018-10-23 22:26:22,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:26:22,932 INFO L481 AbstractCegarLoop]: Abstraction has 434 states and 765 transitions. [2018-10-23 22:26:22,932 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:26:22,933 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 765 transitions. [2018-10-23 22:26:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-10-23 22:26:22,938 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:26:22,938 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:26:22,938 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:26:22,939 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:26:22,939 INFO L82 PathProgramCache]: Analyzing trace with hash 473181535, now seen corresponding path program 1 times [2018-10-23 22:26:22,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:26:22,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:22,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:26:22,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:22,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:26:22,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:26:23,261 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:26:23,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:26:23,262 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-23 22:26:23,262 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:26:23,265 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-23 22:26:23,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-23 22:26:23,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-23 22:26:23,266 INFO L87 Difference]: Start difference. First operand 434 states and 765 transitions. Second operand 6 states. [2018-10-23 22:26:25,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:26:25,335 INFO L93 Difference]: Finished difference Result 1062 states and 1897 transitions. [2018-10-23 22:26:25,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:26:25,342 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2018-10-23 22:26:25,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:26:25,348 INFO L225 Difference]: With dead ends: 1062 [2018-10-23 22:26:25,348 INFO L226 Difference]: Without dead ends: 634 [2018-10-23 22:26:25,351 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-23 22:26:25,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2018-10-23 22:26:25,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 625. [2018-10-23 22:26:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 625 states. [2018-10-23 22:26:25,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 1019 transitions. [2018-10-23 22:26:25,398 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 1019 transitions. Word has length 95 [2018-10-23 22:26:25,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:26:25,398 INFO L481 AbstractCegarLoop]: Abstraction has 625 states and 1019 transitions. [2018-10-23 22:26:25,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-23 22:26:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 1019 transitions. [2018-10-23 22:26:25,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-23 22:26:25,404 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:26:25,405 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-23 22:26:25,405 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:26:25,406 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:26:25,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1939267164, now seen corresponding path program 1 times [2018-10-23 22:26:25,406 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:26:25,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:25,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:26:25,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:25,408 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:26:25,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:26:25,659 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:26:25,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:26:25,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-23 22:26:25,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:26:25,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-23 22:26:25,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-23 22:26:25,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:26:25,662 INFO L87 Difference]: Start difference. First operand 625 states and 1019 transitions. Second operand 4 states. [2018-10-23 22:26:29,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:26:29,558 INFO L93 Difference]: Finished difference Result 2350 states and 4011 transitions. [2018-10-23 22:26:29,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-23 22:26:29,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 104 [2018-10-23 22:26:29,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:26:29,577 INFO L225 Difference]: With dead ends: 2350 [2018-10-23 22:26:29,578 INFO L226 Difference]: Without dead ends: 1731 [2018-10-23 22:26:29,584 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-23 22:26:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2018-10-23 22:26:29,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1731. [2018-10-23 22:26:29,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1731 states. [2018-10-23 22:26:29,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1731 states to 1731 states and 2640 transitions. [2018-10-23 22:26:29,668 INFO L78 Accepts]: Start accepts. Automaton has 1731 states and 2640 transitions. Word has length 104 [2018-10-23 22:26:29,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:26:29,669 INFO L481 AbstractCegarLoop]: Abstraction has 1731 states and 2640 transitions. [2018-10-23 22:26:29,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-23 22:26:29,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1731 states and 2640 transitions. [2018-10-23 22:26:29,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-10-23 22:26:29,686 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:26:29,686 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:26:29,687 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:26:29,687 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:26:29,687 INFO L82 PathProgramCache]: Analyzing trace with hash -1125198180, now seen corresponding path program 1 times [2018-10-23 22:26:29,687 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:26:29,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:29,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:26:29,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:29,689 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:26:29,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:26:29,950 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-23 22:26:29,951 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-23 22:26:29,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-23 22:26:29,951 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:26:29,953 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-23 22:26:29,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-23 22:26:29,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:26:29,954 INFO L87 Difference]: Start difference. First operand 1731 states and 2640 transitions. Second operand 3 states. [2018-10-23 22:26:31,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:26:31,346 INFO L93 Difference]: Finished difference Result 4928 states and 7680 transitions. [2018-10-23 22:26:31,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-23 22:26:31,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2018-10-23 22:26:31,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:26:31,372 INFO L225 Difference]: With dead ends: 4928 [2018-10-23 22:26:31,372 INFO L226 Difference]: Without dead ends: 3203 [2018-10-23 22:26:31,394 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-23 22:26:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2018-10-23 22:26:31,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 3203. [2018-10-23 22:26:31,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3203 states. [2018-10-23 22:26:31,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3203 states to 3203 states and 4752 transitions. [2018-10-23 22:26:31,501 INFO L78 Accepts]: Start accepts. Automaton has 3203 states and 4752 transitions. Word has length 214 [2018-10-23 22:26:31,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:26:31,502 INFO L481 AbstractCegarLoop]: Abstraction has 3203 states and 4752 transitions. [2018-10-23 22:26:31,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-23 22:26:31,503 INFO L276 IsEmpty]: Start isEmpty. Operand 3203 states and 4752 transitions. [2018-10-23 22:26:31,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-23 22:26:31,513 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:26:31,514 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:26:31,514 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:26:31,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:26:31,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1192909764, now seen corresponding path program 1 times [2018-10-23 22:26:31,515 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:26:31,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:31,516 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:26:31,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:26:31,516 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:26:31,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:26:32,096 WARN L179 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-10-23 22:26:32,827 WARN L179 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2018-10-23 22:26:33,531 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 117 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-23 22:26:33,532 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:26:33,532 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:26:33,533 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-10-23 22:26:33,537 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [61], [63], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-23 22:26:33,625 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:26:33,625 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:26:36,454 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:26:37,724 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:26:37,728 INFO L272 AbstractInterpreter]: Visited 118 different actions 118 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-23 22:26:37,775 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:26:37,775 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:26:40,379 INFO L232 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 77.4% of their original sizes. [2018-10-23 22:26:40,380 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:26:40,715 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:26:40,716 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:26:40,718 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 16 [2018-10-23 22:26:40,718 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:26:40,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-23 22:26:40,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-23 22:26:40,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-23 22:26:40,720 INFO L87 Difference]: Start difference. First operand 3203 states and 4752 transitions. Second operand 7 states. [2018-10-23 22:27:06,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:27:06,810 INFO L93 Difference]: Finished difference Result 6585 states and 9782 transitions. [2018-10-23 22:27:06,810 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-23 22:27:06,810 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2018-10-23 22:27:06,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:27:06,831 INFO L225 Difference]: With dead ends: 6585 [2018-10-23 22:27:06,831 INFO L226 Difference]: Without dead ends: 3388 [2018-10-23 22:27:06,851 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-23 22:27:06,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-10-23 22:27:06,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 3386. [2018-10-23 22:27:06,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3386 states. [2018-10-23 22:27:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3386 states to 3386 states and 4943 transitions. [2018-10-23 22:27:06,951 INFO L78 Accepts]: Start accepts. Automaton has 3386 states and 4943 transitions. Word has length 226 [2018-10-23 22:27:06,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:27:06,952 INFO L481 AbstractCegarLoop]: Abstraction has 3386 states and 4943 transitions. [2018-10-23 22:27:06,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-23 22:27:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 3386 states and 4943 transitions. [2018-10-23 22:27:06,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-10-23 22:27:06,963 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:27:06,964 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-23 22:27:06,964 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:27:06,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:27:06,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1312706291, now seen corresponding path program 1 times [2018-10-23 22:27:06,965 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:27:06,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:27:06,966 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:27:06,966 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:27:06,966 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:27:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:27:07,476 WARN L179 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-23 22:27:07,689 WARN L179 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-23 22:27:07,919 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-23 22:27:08,471 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 127 proven. 170 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 22:27:08,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:27:08,472 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:27:08,472 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-10-23 22:27:08,472 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [61], [63], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-23 22:27:08,479 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:27:08,479 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:27:10,803 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:27:14,199 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:27:14,199 INFO L272 AbstractInterpreter]: Visited 122 different actions 237 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:27:14,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:27:14,211 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:27:17,071 INFO L232 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 77.78% of their original sizes. [2018-10-23 22:27:17,071 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:27:41,719 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:27:41,720 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:27:41,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [12] total 34 [2018-10-23 22:27:41,720 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:27:41,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-23 22:27:41,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-23 22:27:41,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2018-10-23 22:27:41,722 INFO L87 Difference]: Start difference. First operand 3386 states and 4943 transitions. Second operand 24 states. [2018-10-23 22:29:29,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-23 22:29:29,598 INFO L93 Difference]: Finished difference Result 7146 states and 10555 transitions. [2018-10-23 22:29:29,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-23 22:29:29,598 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 311 [2018-10-23 22:29:29,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-23 22:29:29,620 INFO L225 Difference]: With dead ends: 7146 [2018-10-23 22:29:29,620 INFO L226 Difference]: Without dead ends: 3949 [2018-10-23 22:29:29,639 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 324 GetRequests, 268 SyntacticMatches, 20 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 29.2s TimeCoverageRelationStatistics Valid=248, Invalid=1158, Unknown=0, NotChecked=0, Total=1406 [2018-10-23 22:29:29,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3949 states. [2018-10-23 22:29:29,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3949 to 3945. [2018-10-23 22:29:29,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3945 states. [2018-10-23 22:29:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 5534 transitions. [2018-10-23 22:29:29,866 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 5534 transitions. Word has length 311 [2018-10-23 22:29:29,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-23 22:29:29,867 INFO L481 AbstractCegarLoop]: Abstraction has 3945 states and 5534 transitions. [2018-10-23 22:29:29,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2018-10-23 22:29:29,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 5534 transitions. [2018-10-23 22:29:29,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-10-23 22:29:29,879 INFO L367 BasicCegarLoop]: Found error trace [2018-10-23 22:29:29,880 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-23 22:29:29,880 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-23 22:29:29,881 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:29:29,881 INFO L82 PathProgramCache]: Analyzing trace with hash 535151199, now seen corresponding path program 1 times [2018-10-23 22:29:29,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-23 22:29:29,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:29:29,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-23 22:29:29,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-23 22:29:29,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-23 22:29:29,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-23 22:29:30,937 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 52 proven. 279 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-23 22:29:30,938 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-23 22:29:30,938 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-23 22:29:30,938 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-10-23 22:29:30,939 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [61], [63], [66], [74], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [586], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [659], [663], [666], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-10-23 22:29:30,943 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-23 22:29:30,943 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-23 22:29:32,901 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-23 22:29:38,236 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-23 22:29:38,236 INFO L272 AbstractInterpreter]: Visited 122 different actions 238 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-23 22:29:38,243 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-23 22:29:38,243 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-23 22:29:41,650 INFO L232 lantSequenceWeakener]: Weakened 322 states. On average, predicates are now at 77.52% of their original sizes. [2018-10-23 22:29:41,650 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-23 22:29:45,693 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-23 22:29:45,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-23 22:29:45,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [15] total 30 [2018-10-23 22:29:45,694 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-23 22:29:45,695 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-23 22:29:45,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-23 22:29:45,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2018-10-23 22:29:45,696 INFO L87 Difference]: Start difference. First operand 3945 states and 5534 transitions. Second operand 17 states. Received shutdown request... [2018-10-23 22:30:14,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-23 22:30:14,850 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-23 22:30:14,855 WARN L205 ceAbstractionStarter]: Timeout [2018-10-23 22:30:14,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 10:30:14 BoogieIcfgContainer [2018-10-23 22:30:14,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-23 22:30:14,857 INFO L168 Benchmark]: Toolchain (without parser) took 239475.59 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 498.9 MB. Max. memory is 7.1 GB. [2018-10-23 22:30:14,858 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-23 22:30:14,858 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.53 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-10-23 22:30:14,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 233.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2018-10-23 22:30:14,860 INFO L168 Benchmark]: Boogie Preprocessor took 113.38 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:30:14,861 INFO L168 Benchmark]: RCFGBuilder took 3538.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 7.1 GB. [2018-10-23 22:30:14,862 INFO L168 Benchmark]: TraceAbstraction took 234772.46 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 409.3 MB. Max. memory is 7.1 GB. [2018-10-23 22:30:14,867 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 811.53 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: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 233.56 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 745.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.38 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3538.09 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234772.46 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.1 GB in the beginning and 3.5 GB in the end (delta: -1.4 GB). Peak memory consumption was 409.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 43). Cancelled while BasicCegarLoop was constructing difference of abstraction (3945states) and FLOYD_HOARE automaton (currently 10 states, 17 states before enhancement),while ReachableStatesComputation was computing reachable states (141 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 234.6s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 172.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1205 SDtfs, 5146 SDslu, 1034 SDs, 0 SdLazy, 7715 SolverSat, 1444 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 65.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 917 GetRequests, 819 SyntacticMatches, 24 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 404 ImplicationChecksByTransitivity, 35.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3945occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.2s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9955469308973526 AbsIntWeakeningRatio, 0.10332950631458095 AbsIntAvgWeakeningVarsNumRemoved, 386.43628013777266 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1307 NumberOfCodeBlocks, 1307 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 4389651 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 439/890 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown