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/Problem11_label30_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 01:06:09,413 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 01:06:09,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 01:06:09,432 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 01:06:09,432 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 01:06:09,433 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 01:06:09,434 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 01:06:09,436 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 01:06:09,438 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 01:06:09,439 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 01:06:09,440 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 01:06:09,440 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 01:06:09,441 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 01:06:09,442 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 01:06:09,443 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 01:06:09,444 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 01:06:09,444 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 01:06:09,446 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 01:06:09,449 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 01:06:09,450 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 01:06:09,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 01:06:09,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 01:06:09,458 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 01:06:09,458 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 01:06:09,459 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 01:06:09,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 01:06:09,465 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 01:06:09,466 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 01:06:09,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 01:06:09,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 01:06:09,471 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 01:06:09,473 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 01:06:09,474 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 01:06:09,474 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 01:06:09,475 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 01:06:09,475 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 01:06:09,476 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 [2018-10-24 01:06:09,506 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 01:06:09,506 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 01:06:09,512 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 01:06:09,512 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 01:06:09,512 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 01:06:09,513 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 01:06:09,513 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 01:06:09,513 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 01:06:09,513 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 01:06:09,513 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 01:06:09,514 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 01:06:09,514 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 01:06:09,515 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 01:06:09,515 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 01:06:09,515 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 01:06:09,516 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 01:06:09,516 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 01:06:09,516 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 01:06:09,516 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 01:06:09,516 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 01:06:09,516 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 01:06:09,518 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 01:06:09,519 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 01:06:09,519 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 01:06:09,519 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 01:06:09,519 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 01:06:09,519 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 01:06:09,520 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 01:06:09,520 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 01:06:09,520 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 01:06:09,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 01:06:09,521 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 01:06:09,521 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 01:06:09,521 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 01:06:09,592 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 01:06:09,609 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 01:06:09,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 01:06:09,615 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 01:06:09,616 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 01:06:09,617 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label30_true-unreach-call.c [2018-10-24 01:06:09,696 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff6b210bf/c2d6efc3ebd542fa9b7ff48b4cc91d39/FLAGa3712b8b9 [2018-10-24 01:06:10,398 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 01:06:10,399 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label30_true-unreach-call.c [2018-10-24 01:06:10,417 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff6b210bf/c2d6efc3ebd542fa9b7ff48b4cc91d39/FLAGa3712b8b9 [2018-10-24 01:06:10,434 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ff6b210bf/c2d6efc3ebd542fa9b7ff48b4cc91d39 [2018-10-24 01:06:10,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 01:06:10,446 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 01:06:10,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 01:06:10,447 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 01:06:10,450 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 01:06:10,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:06:10" (1/1) ... [2018-10-24 01:06:10,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68ad0ab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:10, skipping insertion in model container [2018-10-24 01:06:10,454 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:06:10" (1/1) ... [2018-10-24 01:06:10,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 01:06:10,529 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 01:06:11,086 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:06:11,095 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 01:06:11,293 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 01:06:11,314 INFO L193 MainTranslator]: Completed translation [2018-10-24 01:06:11,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11 WrapperNode [2018-10-24 01:06:11,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 01:06:11,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 01:06:11,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 01:06:11,316 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 01:06:11,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 01:06:11,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 01:06:11,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 01:06:11,648 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 01:06:11,659 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,785 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (1/1) ... [2018-10-24 01:06:11,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 01:06:11,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 01:06:11,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 01:06:11,805 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 01:06:11,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (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 [2018-10-24 01:06:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 01:06:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 01:06:11,881 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 01:06:11,881 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 01:06:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 01:06:11,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 01:06:11,882 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 01:06:11,883 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 01:06:16,377 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 01:06:16,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:06:16 BoogieIcfgContainer [2018-10-24 01:06:16,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 01:06:16,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 01:06:16,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 01:06:16,388 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 01:06:16,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:06:10" (1/3) ... [2018-10-24 01:06:16,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51304f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:06:16, skipping insertion in model container [2018-10-24 01:06:16,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:06:11" (2/3) ... [2018-10-24 01:06:16,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51304f1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:06:16, skipping insertion in model container [2018-10-24 01:06:16,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:06:16" (3/3) ... [2018-10-24 01:06:16,394 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label30_true-unreach-call.c [2018-10-24 01:06:16,403 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 01:06:16,412 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 01:06:16,431 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 01:06:16,472 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 01:06:16,475 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 01:06:16,475 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 01:06:16,476 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 01:06:16,476 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 01:06:16,476 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 01:06:16,476 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 01:06:16,476 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 01:06:16,507 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 01:06:16,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-24 01:06:16,515 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:06:16,516 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] [2018-10-24 01:06:16,519 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:06:16,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:16,527 INFO L82 PathProgramCache]: Analyzing trace with hash 814847676, now seen corresponding path program 1 times [2018-10-24 01:06:16,529 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:06:16,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:16,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:16,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:16,583 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:06:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:17,073 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 01:06:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:17,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:06:17,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:06:17,092 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:06:17,099 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:06:17,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:06:17,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:06:17,124 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-24 01:06:20,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:06:20,421 INFO L93 Difference]: Finished difference Result 1001 states and 1780 transitions. [2018-10-24 01:06:20,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:06:20,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 36 [2018-10-24 01:06:20,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:06:20,446 INFO L225 Difference]: With dead ends: 1001 [2018-10-24 01:06:20,446 INFO L226 Difference]: Without dead ends: 702 [2018-10-24 01:06:20,457 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:06:20,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2018-10-24 01:06:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2018-10-24 01:06:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 699 states. [2018-10-24 01:06:20,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1082 transitions. [2018-10-24 01:06:20,583 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1082 transitions. Word has length 36 [2018-10-24 01:06:20,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:06:20,584 INFO L481 AbstractCegarLoop]: Abstraction has 699 states and 1082 transitions. [2018-10-24 01:06:20,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:06:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1082 transitions. [2018-10-24 01:06:20,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-10-24 01:06:20,596 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:06:20,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:06:20,597 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:06:20,601 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:20,601 INFO L82 PathProgramCache]: Analyzing trace with hash -25993205, now seen corresponding path program 1 times [2018-10-24 01:06:20,601 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:06:20,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:20,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:20,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:20,604 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:06:20,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:21,001 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:21,001 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:06:21,001 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:06:21,002 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:06:21,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:06:21,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:06:21,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:06:21,005 INFO L87 Difference]: Start difference. First operand 699 states and 1082 transitions. Second operand 6 states. [2018-10-24 01:06:25,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:06:25,620 INFO L93 Difference]: Finished difference Result 2534 states and 4100 transitions. [2018-10-24 01:06:25,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:06:25,624 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 109 [2018-10-24 01:06:25,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:06:25,643 INFO L225 Difference]: With dead ends: 2534 [2018-10-24 01:06:25,643 INFO L226 Difference]: Without dead ends: 1841 [2018-10-24 01:06:25,652 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 [2018-10-24 01:06:25,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2018-10-24 01:06:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1815. [2018-10-24 01:06:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1815 states. [2018-10-24 01:06:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2683 transitions. [2018-10-24 01:06:25,766 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2683 transitions. Word has length 109 [2018-10-24 01:06:25,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:06:25,766 INFO L481 AbstractCegarLoop]: Abstraction has 1815 states and 2683 transitions. [2018-10-24 01:06:25,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:06:25,767 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2683 transitions. [2018-10-24 01:06:25,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2018-10-24 01:06:25,773 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:06:25,773 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:06:25,774 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:06:25,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:25,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1434902368, now seen corresponding path program 1 times [2018-10-24 01:06:25,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:06:25,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:25,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:25,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:25,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:06:25,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:25,975 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:25,975 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:06:25,975 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 01:06:25,975 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:06:25,976 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 01:06:25,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 01:06:25,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:06:25,977 INFO L87 Difference]: Start difference. First operand 1815 states and 2683 transitions. Second operand 4 states. [2018-10-24 01:06:28,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:06:28,644 INFO L93 Difference]: Finished difference Result 4796 states and 7372 transitions. [2018-10-24 01:06:28,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 01:06:28,647 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 110 [2018-10-24 01:06:28,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:06:28,671 INFO L225 Difference]: With dead ends: 4796 [2018-10-24 01:06:28,672 INFO L226 Difference]: Without dead ends: 2987 [2018-10-24 01:06:28,687 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 01:06:28,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2987 states. [2018-10-24 01:06:28,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2987 to 2970. [2018-10-24 01:06:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2970 states. [2018-10-24 01:06:28,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2970 states to 2970 states and 4362 transitions. [2018-10-24 01:06:28,796 INFO L78 Accepts]: Start accepts. Automaton has 2970 states and 4362 transitions. Word has length 110 [2018-10-24 01:06:28,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:06:28,797 INFO L481 AbstractCegarLoop]: Abstraction has 2970 states and 4362 transitions. [2018-10-24 01:06:28,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 01:06:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2970 states and 4362 transitions. [2018-10-24 01:06:28,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-24 01:06:28,804 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:06:28,804 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:06:28,804 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:06:28,805 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:28,805 INFO L82 PathProgramCache]: Analyzing trace with hash 579016823, now seen corresponding path program 1 times [2018-10-24 01:06:28,806 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:06:28,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:28,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:28,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:28,807 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:06:28,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:29,118 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 01:06:29,118 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 01:06:29,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:06:29,119 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 01:06:29,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 01:06:29,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-24 01:06:29,120 INFO L87 Difference]: Start difference. First operand 2970 states and 4362 transitions. Second operand 6 states. [2018-10-24 01:06:33,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:06:33,546 INFO L93 Difference]: Finished difference Result 11412 states and 20997 transitions. [2018-10-24 01:06:33,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 01:06:33,546 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-10-24 01:06:33,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:06:33,642 INFO L225 Difference]: With dead ends: 11412 [2018-10-24 01:06:33,643 INFO L226 Difference]: Without dead ends: 8448 [2018-10-24 01:06:33,732 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:06:33,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8448 states. [2018-10-24 01:06:34,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8448 to 7652. [2018-10-24 01:06:34,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7652 states. [2018-10-24 01:06:34,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7652 states to 7652 states and 11186 transitions. [2018-10-24 01:06:34,083 INFO L78 Accepts]: Start accepts. Automaton has 7652 states and 11186 transitions. Word has length 135 [2018-10-24 01:06:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:06:34,084 INFO L481 AbstractCegarLoop]: Abstraction has 7652 states and 11186 transitions. [2018-10-24 01:06:34,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 01:06:34,084 INFO L276 IsEmpty]: Start isEmpty. Operand 7652 states and 11186 transitions. [2018-10-24 01:06:34,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-10-24 01:06:34,094 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:06:34,095 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:06:34,095 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:06:34,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:34,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1556909905, now seen corresponding path program 1 times [2018-10-24 01:06:34,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:06:34,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:34,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:06:34,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:06:34,097 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:06:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:06:34,599 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:06:34,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:06:34,600 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:06:34,601 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 184 with the following transitions: [2018-10-24 01:06:34,605 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], [189], [191], [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], [502], [503], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:06:34,703 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:06:34,703 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:06:36,584 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:06:36,585 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 01:06:36,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:06:36,598 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:06:38,817 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 73.46% of their original sizes. [2018-10-24 01:06:38,818 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:06:39,276 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:06:39,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:06:39,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 01:06:39,277 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:06:39,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 01:06:39,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 01:06:39,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 01:06:39,279 INFO L87 Difference]: Start difference. First operand 7652 states and 11186 transitions. Second operand 7 states. [2018-10-24 01:06:41,926 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:07:21,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:07:21,716 INFO L93 Difference]: Finished difference Result 15490 states and 22585 transitions. [2018-10-24 01:07:21,716 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 01:07:21,716 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2018-10-24 01:07:21,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:07:21,769 INFO L225 Difference]: With dead ends: 15490 [2018-10-24 01:07:21,769 INFO L226 Difference]: Without dead ends: 7844 [2018-10-24 01:07:21,798 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 183 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 01:07:21,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7844 states. [2018-10-24 01:07:22,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7844 to 7842. [2018-10-24 01:07:22,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7842 states. [2018-10-24 01:07:22,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7842 states to 7842 states and 11387 transitions. [2018-10-24 01:07:22,063 INFO L78 Accepts]: Start accepts. Automaton has 7842 states and 11387 transitions. Word has length 183 [2018-10-24 01:07:22,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:07:22,063 INFO L481 AbstractCegarLoop]: Abstraction has 7842 states and 11387 transitions. [2018-10-24 01:07:22,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 01:07:22,064 INFO L276 IsEmpty]: Start isEmpty. Operand 7842 states and 11387 transitions. [2018-10-24 01:07:22,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-10-24 01:07:22,073 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:07:22,073 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 01:07:22,074 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:07:22,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:07:22,074 INFO L82 PathProgramCache]: Analyzing trace with hash -386225441, now seen corresponding path program 1 times [2018-10-24 01:07:22,074 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:07:22,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:07:22,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:07:22,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:07:22,076 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:07:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:07:22,828 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:07:22,829 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:07:22,829 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:07:22,829 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-10-24 01:07:22,830 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], [189], [191], [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], [502], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:07:22,837 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:07:22,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:07:25,757 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:07:39,360 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 01:07:39,360 INFO L272 AbstractInterpreter]: Visited 141 different actions 409 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:07:39,367 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:07:39,368 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 01:07:39,368 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:07:39,368 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 [2018-10-24 01:07:39,380 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:07:39,380 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 01:07:39,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:07:39,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 01:07:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:07:39,931 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 01:07:40,832 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 128 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 01:07:40,853 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 01:07:40,854 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-24 01:07:40,854 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 01:07:40,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 01:07:40,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 01:07:40,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-24 01:07:40,856 INFO L87 Difference]: Start difference. First operand 7842 states and 11387 transitions. Second operand 9 states. [2018-10-24 01:07:50,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 01:07:50,760 INFO L93 Difference]: Finished difference Result 21964 states and 42564 transitions. [2018-10-24 01:07:50,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-10-24 01:07:50,761 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 240 [2018-10-24 01:07:50,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 01:07:50,902 INFO L225 Difference]: With dead ends: 21964 [2018-10-24 01:07:50,902 INFO L226 Difference]: Without dead ends: 14318 [2018-10-24 01:07:51,107 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 483 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=159, Invalid=347, Unknown=0, NotChecked=0, Total=506 [2018-10-24 01:07:51,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14318 states. [2018-10-24 01:07:51,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14318 to 14159. [2018-10-24 01:07:51,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14159 states. [2018-10-24 01:07:51,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14159 states to 14159 states and 24876 transitions. [2018-10-24 01:07:51,901 INFO L78 Accepts]: Start accepts. Automaton has 14159 states and 24876 transitions. Word has length 240 [2018-10-24 01:07:51,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 01:07:51,902 INFO L481 AbstractCegarLoop]: Abstraction has 14159 states and 24876 transitions. [2018-10-24 01:07:51,902 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 01:07:51,902 INFO L276 IsEmpty]: Start isEmpty. Operand 14159 states and 24876 transitions. [2018-10-24 01:07:51,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2018-10-24 01:07:51,914 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 01:07:51,915 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 01:07:51,915 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 01:07:51,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:07:51,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1046651030, now seen corresponding path program 1 times [2018-10-24 01:07:51,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 01:07:51,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:07:51,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 01:07:51,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 01:07:51,918 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 01:07:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 01:07:52,400 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 01:07:53,172 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-24 01:07:53,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 01:07:53,173 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 01:07:53,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 259 with the following transitions: [2018-10-24 01:07:53,174 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], [189], [191], [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], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 01:07:53,184 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 01:07:53,185 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 01:07:55,686 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 01:08:11,589 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 01:08:11,590 INFO L272 AbstractInterpreter]: Visited 135 different actions 392 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 01:08:11,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 01:08:11,598 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 01:08:16,613 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 75.65% of their original sizes. [2018-10-24 01:08:16,614 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 01:08:37,504 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 01:08:37,505 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 01:08:37,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [9] total 31 [2018-10-24 01:08:37,505 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 01:08:37,505 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2018-10-24 01:08:37,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2018-10-24 01:08:37,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=452, Unknown=0, NotChecked=0, Total=552 [2018-10-24 01:08:37,506 INFO L87 Difference]: Start difference. First operand 14159 states and 24876 transitions. Second operand 24 states. Received shutdown request... [2018-10-24 01:09:59,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 01:09:59,443 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 01:09:59,448 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 01:09:59,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 01:09:59 BoogieIcfgContainer [2018-10-24 01:09:59,448 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 01:09:59,449 INFO L168 Benchmark]: Toolchain (without parser) took 229004.05 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -950.3 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-24 01:09:59,451 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 01:09:59,451 INFO L168 Benchmark]: CACSL2BoogieTranslator took 868.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-24 01:09:59,452 INFO L168 Benchmark]: Boogie Procedure Inliner took 331.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -832.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2018-10-24 01:09:59,453 INFO L168 Benchmark]: Boogie Preprocessor took 156.73 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2018-10-24 01:09:59,454 INFO L168 Benchmark]: RCFGBuilder took 4573.28 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: 173.9 MB). Peak memory consumption was 173.9 MB. Max. memory is 7.1 GB. [2018-10-24 01:09:59,454 INFO L168 Benchmark]: TraceAbstraction took 223069.16 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -368.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-24 01:09:59,460 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 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 868.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 331.47 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -832.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.73 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: 13.7 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4573.28 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: 173.9 MB). Peak memory consumption was 173.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223069.16 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.7 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -368.6 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 93]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 93). Cancelled while BasicCegarLoop was constructing difference of abstraction (14159states) and FLOYD_HOARE automaton (currently 9 states, 24 states before enhancement),while ReachableStatesComputation was computing reachable states (90 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 222.9s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 150.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1443 SDtfs, 5598 SDslu, 1470 SDs, 0 SdLazy, 11933 SolverSat, 2579 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 57.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 983 GetRequests, 907 SyntacticMatches, 3 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 25.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14159occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 36.9s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9954080341324081 AbsIntWeakeningRatio, 0.1275626423690205 AbsIntAvgWeakeningVarsNumRemoved, 600.9202733485193 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 1003 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 1311 NumberOfCodeBlocks, 1311 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1542 ConstructedInterpolants, 0 QuantifiedInterpolants, 942461 SizeOfPredicates, 0 NumberOfNonLiveVariables, 451 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 691/760 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown