java -Xss4m -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 02:17:52,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 02:17:52,429 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 02:17:52,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 02:17:52,444 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 02:17:52,445 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 02:17:52,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 02:17:52,448 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 02:17:52,450 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 02:17:52,451 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 02:17:52,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 02:17:52,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 02:17:52,453 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 02:17:52,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 02:17:52,458 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 02:17:52,459 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 02:17:52,460 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 02:17:52,462 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 02:17:52,464 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 02:17:52,466 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 02:17:52,467 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 02:17:52,468 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 02:17:52,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 02:17:52,471 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 02:17:52,471 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 02:17:52,472 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 02:17:52,473 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 02:17:52,474 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 02:17:52,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 02:17:52,476 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 02:17:52,476 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 02:17:52,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 02:17:52,477 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 02:17:52,477 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 02:17:52,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 02:17:52,479 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 02:17:52,479 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 02:17:52,495 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 02:17:52,495 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 02:17:52,496 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 02:17:52,497 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 02:17:52,497 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 02:17:52,497 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 02:17:52,497 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 02:17:52,497 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 02:17:52,498 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 02:17:52,498 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 02:17:52,498 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 02:17:52,498 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 02:17:52,499 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 02:17:52,499 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 02:17:52,499 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 02:17:52,500 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 02:17:52,500 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 02:17:52,500 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 02:17:52,500 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 02:17:52,500 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 02:17:52,501 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 02:17:52,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 02:17:52,501 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 02:17:52,501 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 02:17:52,501 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 02:17:52,501 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 02:17:52,502 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 02:17:52,502 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 02:17:52,502 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 02:17:52,502 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 02:17:52,502 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 02:17:52,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 02:17:52,503 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 02:17:52,503 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 02:17:52,503 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 02:17:52,560 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 02:17:52,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 02:17:52,585 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 02:17:52,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 02:17:52,588 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 02:17:52,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-07-21 02:17:52,989 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/965149f37/f7a7609956ca4298b0da91cf51ae8eb6/FLAG5208bd785 [2018-07-21 02:17:53,330 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 02:17:53,331 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label00_false-unreach-call.c [2018-07-21 02:17:53,353 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/965149f37/f7a7609956ca4298b0da91cf51ae8eb6/FLAG5208bd785 [2018-07-21 02:17:53,378 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/965149f37/f7a7609956ca4298b0da91cf51ae8eb6 [2018-07-21 02:17:53,392 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 02:17:53,402 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 02:17:53,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 02:17:53,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 02:17:53,414 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 02:17:53,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:17:53" (1/1) ... [2018-07-21 02:17:53,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ad868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:53, skipping insertion in model container [2018-07-21 02:17:53,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 02:17:53" (1/1) ... [2018-07-21 02:17:53,695 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 02:17:54,254 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:17:54,275 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 02:17:54,532 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 02:17:54,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54 WrapperNode [2018-07-21 02:17:54,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 02:17:54,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 02:17:54,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 02:17:54,682 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 02:17:54,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:54,752 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:54,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 02:17:54,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 02:17:54,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 02:17:54,894 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 02:17:54,905 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:54,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:54,925 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:54,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:54,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:55,277 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:55,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... [2018-07-21 02:17:55,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 02:17:55,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 02:17:55,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 02:17:55,325 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 02:17:55,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (1/1) ... No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 02:17:55,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 02:17:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 02:17:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 02:17:55,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 02:17:55,400 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 02:17:55,401 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 02:17:55,402 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 02:17:55,402 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 02:17:59,885 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 02:17:59,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:17:59 BoogieIcfgContainer [2018-07-21 02:17:59,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 02:17:59,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 02:17:59,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 02:17:59,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 02:17:59,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 02:17:53" (1/3) ... [2018-07-21 02:17:59,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c5bfdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:17:59, skipping insertion in model container [2018-07-21 02:17:59,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 02:17:54" (2/3) ... [2018-07-21 02:17:59,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19c5bfdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 02:17:59, skipping insertion in model container [2018-07-21 02:17:59,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 02:17:59" (3/3) ... [2018-07-21 02:17:59,896 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label00_false-unreach-call.c [2018-07-21 02:17:59,904 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 02:17:59,912 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 02:17:59,962 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 02:17:59,963 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 02:17:59,963 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 02:17:59,963 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 02:17:59,964 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 02:17:59,964 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 02:17:59,964 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 02:17:59,964 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 02:17:59,964 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 02:18:00,029 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-07-21 02:18:00,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-07-21 02:18:00,036 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:00,038 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:18:00,038 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:00,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1609080513, now seen corresponding path program 1 times [2018-07-21 02:18:00,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:00,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:00,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:00,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:00,113 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:00,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:00,323 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:18:00,326 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:18:00,326 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:18:00,330 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:18:00,347 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:18:00,348 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:18:00,350 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-07-21 02:18:02,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:02,711 INFO L93 Difference]: Finished difference Result 783 states and 1371 transitions. [2018-07-21 02:18:02,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:18:02,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-07-21 02:18:02,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:02,739 INFO L225 Difference]: With dead ends: 783 [2018-07-21 02:18:02,739 INFO L226 Difference]: Without dead ends: 488 [2018-07-21 02:18:02,748 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:18:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2018-07-21 02:18:02,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2018-07-21 02:18:02,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2018-07-21 02:18:02,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 737 transitions. [2018-07-21 02:18:02,833 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 737 transitions. Word has length 13 [2018-07-21 02:18:02,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:02,833 INFO L471 AbstractCegarLoop]: Abstraction has 488 states and 737 transitions. [2018-07-21 02:18:02,833 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:18:02,834 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 737 transitions. [2018-07-21 02:18:02,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-21 02:18:02,838 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:02,838 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 02:18:02,838 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:02,839 INFO L82 PathProgramCache]: Analyzing trace with hash 631137051, now seen corresponding path program 1 times [2018-07-21 02:18:02,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:02,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:02,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:02,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:02,841 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:02,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:03,266 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 02:18:03,467 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:03,468 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:18:03,468 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:18:03,468 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:18:03,471 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:18:03,471 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:18:03,471 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:18:03,472 INFO L87 Difference]: Start difference. First operand 488 states and 737 transitions. Second operand 6 states. [2018-07-21 02:18:07,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:07,411 INFO L93 Difference]: Finished difference Result 1564 states and 2506 transitions. [2018-07-21 02:18:07,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:18:07,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 86 [2018-07-21 02:18:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:07,424 INFO L225 Difference]: With dead ends: 1564 [2018-07-21 02:18:07,424 INFO L226 Difference]: Without dead ends: 1082 [2018-07-21 02:18:07,427 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 02:18:07,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1082 states. [2018-07-21 02:18:07,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1082 to 1070. [2018-07-21 02:18:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2018-07-21 02:18:07,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1603 transitions. [2018-07-21 02:18:07,516 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1603 transitions. Word has length 86 [2018-07-21 02:18:07,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:07,517 INFO L471 AbstractCegarLoop]: Abstraction has 1070 states and 1603 transitions. [2018-07-21 02:18:07,518 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:18:07,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1603 transitions. [2018-07-21 02:18:07,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2018-07-21 02:18:07,522 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:07,522 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 02:18:07,522 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:07,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1805064348, now seen corresponding path program 1 times [2018-07-21 02:18:07,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:07,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:07,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:07,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:07,526 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:07,720 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:18:07,720 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:18:07,720 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:18:07,721 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:18:07,724 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:18:07,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:18:07,725 INFO L87 Difference]: Start difference. First operand 1070 states and 1603 transitions. Second operand 3 states. [2018-07-21 02:18:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:10,091 INFO L93 Difference]: Finished difference Result 2535 states and 3860 transitions. [2018-07-21 02:18:10,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:18:10,092 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2018-07-21 02:18:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:10,105 INFO L225 Difference]: With dead ends: 2535 [2018-07-21 02:18:10,106 INFO L226 Difference]: Without dead ends: 1471 [2018-07-21 02:18:10,110 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:18:10,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1471 states. [2018-07-21 02:18:10,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1471 to 1461. [2018-07-21 02:18:10,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2018-07-21 02:18:10,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2109 transitions. [2018-07-21 02:18:10,192 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2109 transitions. Word has length 87 [2018-07-21 02:18:10,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:10,192 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2109 transitions. [2018-07-21 02:18:10,193 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:18:10,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2109 transitions. [2018-07-21 02:18:10,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2018-07-21 02:18:10,196 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:10,197 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 02:18:10,197 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:10,197 INFO L82 PathProgramCache]: Analyzing trace with hash 944234047, now seen corresponding path program 1 times [2018-07-21 02:18:10,197 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:10,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:10,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:10,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:10,201 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:10,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:10,362 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:10,363 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:18:10,363 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-21 02:18:10,363 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:18:10,363 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:18:10,364 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:18:10,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:18:10,364 INFO L87 Difference]: Start difference. First operand 1461 states and 2109 transitions. Second operand 3 states. [2018-07-21 02:18:11,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:11,447 INFO L93 Difference]: Finished difference Result 3308 states and 4868 transitions. [2018-07-21 02:18:11,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:18:11,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2018-07-21 02:18:11,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:11,464 INFO L225 Difference]: With dead ends: 3308 [2018-07-21 02:18:11,464 INFO L226 Difference]: Without dead ends: 1853 [2018-07-21 02:18:11,471 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-21 02:18:11,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1853 states. [2018-07-21 02:18:11,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1853 to 1847. [2018-07-21 02:18:11,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1847 states. [2018-07-21 02:18:11,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1847 states to 1847 states and 2612 transitions. [2018-07-21 02:18:11,580 INFO L78 Accepts]: Start accepts. Automaton has 1847 states and 2612 transitions. Word has length 88 [2018-07-21 02:18:11,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:11,581 INFO L471 AbstractCegarLoop]: Abstraction has 1847 states and 2612 transitions. [2018-07-21 02:18:11,581 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:18:11,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1847 states and 2612 transitions. [2018-07-21 02:18:11,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-07-21 02:18:11,585 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:11,586 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:18:11,586 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:11,586 INFO L82 PathProgramCache]: Analyzing trace with hash -230719573, now seen corresponding path program 1 times [2018-07-21 02:18:11,586 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:11,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:11,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:11,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:11,592 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:11,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:11,759 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:11,760 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:18:11,760 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 02:18:11,760 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:18:11,762 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 02:18:11,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 02:18:11,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-21 02:18:11,762 INFO L87 Difference]: Start difference. First operand 1847 states and 2612 transitions. Second operand 6 states. [2018-07-21 02:18:16,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:16,440 INFO L93 Difference]: Finished difference Result 6013 states and 8876 transitions. [2018-07-21 02:18:16,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:18:16,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 94 [2018-07-21 02:18:16,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:16,469 INFO L225 Difference]: With dead ends: 6013 [2018-07-21 02:18:16,469 INFO L226 Difference]: Without dead ends: 4172 [2018-07-21 02:18:16,481 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-21 02:18:16,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4172 states. [2018-07-21 02:18:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4172 to 4107. [2018-07-21 02:18:16,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4107 states. [2018-07-21 02:18:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4107 states to 4107 states and 5492 transitions. [2018-07-21 02:18:16,648 INFO L78 Accepts]: Start accepts. Automaton has 4107 states and 5492 transitions. Word has length 94 [2018-07-21 02:18:16,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:16,648 INFO L471 AbstractCegarLoop]: Abstraction has 4107 states and 5492 transitions. [2018-07-21 02:18:16,648 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 02:18:16,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4107 states and 5492 transitions. [2018-07-21 02:18:16,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-21 02:18:16,656 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:16,657 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:18:16,657 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:16,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1367743065, now seen corresponding path program 1 times [2018-07-21 02:18:16,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:16,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:16,658 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:16,658 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:16,659 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:17,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:17,288 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 02:18:17,288 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-21 02:18:17,288 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:18:17,289 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-21 02:18:17,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-21 02:18:17,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-21 02:18:17,289 INFO L87 Difference]: Start difference. First operand 4107 states and 5492 transitions. Second operand 7 states. [2018-07-21 02:18:22,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:18:22,873 INFO L93 Difference]: Finished difference Result 9565 states and 13475 transitions. [2018-07-21 02:18:22,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-21 02:18:22,875 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 108 [2018-07-21 02:18:22,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:18:22,914 INFO L225 Difference]: With dead ends: 9565 [2018-07-21 02:18:22,914 INFO L226 Difference]: Without dead ends: 5269 [2018-07-21 02:18:22,936 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-21 02:18:22,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5269 states. [2018-07-21 02:18:23,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5269 to 4935. [2018-07-21 02:18:23,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4935 states. [2018-07-21 02:18:23,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4935 states to 4935 states and 6612 transitions. [2018-07-21 02:18:23,111 INFO L78 Accepts]: Start accepts. Automaton has 4935 states and 6612 transitions. Word has length 108 [2018-07-21 02:18:23,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:18:23,113 INFO L471 AbstractCegarLoop]: Abstraction has 4935 states and 6612 transitions. [2018-07-21 02:18:23,113 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-21 02:18:23,114 INFO L276 IsEmpty]: Start isEmpty. Operand 4935 states and 6612 transitions. [2018-07-21 02:18:23,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-07-21 02:18:23,116 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:18:23,116 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 02:18:23,116 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:18:23,117 INFO L82 PathProgramCache]: Analyzing trace with hash 2030942725, now seen corresponding path program 1 times [2018-07-21 02:18:23,119 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:18:23,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:23,120 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:18:23,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:18:23,120 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:18:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:18:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:18:23,701 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:18:23,701 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:18:23,707 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 146 with the following transitions: [2018-07-21 02:18:23,709 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [31], [34], [42], [50], [58], [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], [498], [506], [514], [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], [619], [623], [627], [631], [635], [639], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [701], [712], [716], [720], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [786], [790], [793], [796], [800], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-21 02:18:23,834 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:18:23,835 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:18:41,768 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:20:28,619 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-21 02:20:28,620 INFO L272 AbstractInterpreter]: Visited 140 different actions 407 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-07-21 02:20:28,630 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-21 02:20:28,631 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:20:28,631 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 02:20:28,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:20:28,639 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 02:20:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:20:28,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 02:20:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:20:28,835 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 02:20:29,204 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:20:29,237 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:20:29,237 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-07-21 02:20:29,237 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:20:29,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 02:20:29,238 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 02:20:29,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-07-21 02:20:29,238 INFO L87 Difference]: Start difference. First operand 4935 states and 6612 transitions. Second operand 3 states. [2018-07-21 02:20:31,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 02:20:31,691 INFO L93 Difference]: Finished difference Result 10820 states and 14905 transitions. [2018-07-21 02:20:31,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 02:20:31,691 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 145 [2018-07-21 02:20:31,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 02:20:31,719 INFO L225 Difference]: With dead ends: 10820 [2018-07-21 02:20:31,719 INFO L226 Difference]: Without dead ends: 5891 [2018-07-21 02:20:31,751 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 291 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-07-21 02:20:31,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5891 states. [2018-07-21 02:20:31,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5891 to 5679. [2018-07-21 02:20:31,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5679 states. [2018-07-21 02:20:31,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5679 states to 5679 states and 7518 transitions. [2018-07-21 02:20:31,939 INFO L78 Accepts]: Start accepts. Automaton has 5679 states and 7518 transitions. Word has length 145 [2018-07-21 02:20:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 02:20:31,939 INFO L471 AbstractCegarLoop]: Abstraction has 5679 states and 7518 transitions. [2018-07-21 02:20:31,940 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 02:20:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5679 states and 7518 transitions. [2018-07-21 02:20:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-07-21 02:20:31,944 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 02:20:31,944 INFO L358 BasicCegarLoop]: trace histogram [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, 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] [2018-07-21 02:20:31,945 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 02:20:31,945 INFO L82 PathProgramCache]: Analyzing trace with hash 1043686119, now seen corresponding path program 1 times [2018-07-21 02:20:31,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 02:20:31,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:20:31,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 02:20:31,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 02:20:31,947 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 02:20:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 02:20:32,506 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-21 02:20:32,979 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 16 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 02:20:32,979 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 02:20:32,979 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 02:20:32,979 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-07-21 02:20:32,979 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [31], [34], [42], [50], [58], [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], [498], [506], [514], [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], [618], [619], [623], [627], [631], [635], [639], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [701], [712], [716], [720], [731], [734], [1108], [1109], [1110], [1111], [1113], [1114] [2018-07-21 02:20:32,991 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 02:20:32,992 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 02:20:41,878 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 02:21:16,230 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 02:21:16,230 INFO L272 AbstractInterpreter]: Visited 125 different actions 363 times. Merged at 5 different actions 10 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-07-21 02:21:16,237 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 02:21:22,725 INFO L232 lantSequenceWeakener]: Weakened 223 states. On average, predicates are now at 73.03% of their original sizes. [2018-07-21 02:21:22,725 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 02:21:24,610 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 02:21:24,611 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 02:21:24,611 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [10] total 21 [2018-07-21 02:21:24,611 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 02:21:24,612 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-21 02:21:24,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-21 02:21:24,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-07-21 02:21:24,612 INFO L87 Difference]: Start difference. First operand 5679 states and 7518 transitions. Second operand 13 states. Received shutdown request... [2018-07-21 02:21:30,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 02:21:30,783 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 02:21:30,787 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 02:21:30,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 02:21:30 BoogieIcfgContainer [2018-07-21 02:21:30,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 02:21:30,789 INFO L168 Benchmark]: Toolchain (without parser) took 217396.35 ms. Allocated memory was 309.3 MB in the beginning and 2.3 GB in the end (delta: 2.0 GB). Free memory was 253.1 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 430.6 MB. Max. memory is 5.3 GB. [2018-07-21 02:21:30,790 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 02:21:30,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1277.61 ms. Allocated memory was 309.3 MB in the beginning and 337.6 MB in the end (delta: 28.3 MB). Free memory was 252.1 MB in the beginning and 295.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 81.4 MB. Max. memory is 5.3 GB. [2018-07-21 02:21:30,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 211.35 ms. Allocated memory is still 337.6 MB. Free memory was 295.8 MB in the beginning and 276.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 5.3 GB. [2018-07-21 02:21:30,791 INFO L168 Benchmark]: Boogie Preprocessor took 431.46 ms. Allocated memory was 337.6 MB in the beginning and 516.9 MB in the end (delta: 179.3 MB). Free memory was 276.3 MB in the beginning and 474.9 MB in the end (delta: -198.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 5.3 GB. [2018-07-21 02:21:30,792 INFO L168 Benchmark]: RCFGBuilder took 4561.32 ms. Allocated memory is still 516.9 MB. Free memory was 474.9 MB in the beginning and 287.8 MB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 5.3 GB. [2018-07-21 02:21:30,792 INFO L168 Benchmark]: TraceAbstraction took 210900.52 ms. Allocated memory was 516.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 287.8 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 257.7 MB. Max. memory is 5.3 GB. [2018-07-21 02:21:30,796 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 309.3 MB. Free memory is still 274.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1277.61 ms. Allocated memory was 309.3 MB in the beginning and 337.6 MB in the end (delta: 28.3 MB). Free memory was 252.1 MB in the beginning and 295.8 MB in the end (delta: -43.7 MB). Peak memory consumption was 81.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 211.35 ms. Allocated memory is still 337.6 MB. Free memory was 295.8 MB in the beginning and 276.3 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 431.46 ms. Allocated memory was 337.6 MB in the beginning and 516.9 MB in the end (delta: 179.3 MB). Free memory was 276.3 MB in the beginning and 474.9 MB in the end (delta: -198.6 MB). Peak memory consumption was 18.8 MB. Max. memory is 5.3 GB. * RCFGBuilder took 4561.32 ms. Allocated memory is still 516.9 MB. Free memory was 474.9 MB in the beginning and 287.8 MB in the end (delta: 187.1 MB). Peak memory consumption was 187.1 MB. Max. memory is 5.3 GB. * TraceAbstraction took 210900.52 ms. Allocated memory was 516.9 MB in the beginning and 2.3 GB in the end (delta: 1.8 GB). Free memory was 287.8 MB in the beginning and 1.8 GB in the end (delta: -1.5 GB). Peak memory consumption was 257.7 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 24]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 24). Cancelled while BasicCegarLoop was constructing difference of abstraction (5679states) and interpolant automaton (currently 7 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (81 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 28.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1965 SDtfs, 4431 SDslu, 924 SDs, 0 SdLazy, 8571 SolverSat, 1592 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 20.5s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 571 GetRequests, 522 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5679occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 168.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9951755007558579 AbsIntWeakeningRatio, 0.125 AbsIntAvgWeakeningVarsNumRemoved, 18.459821428571427 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 639 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 991 NumberOfCodeBlocks, 991 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1126 ConstructedInterpolants, 0 QuantifiedInterpolants, 955437 SizeOfPredicates, 2 NumberOfNonLiveVariables, 310 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 58/155 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem11_label00_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_02-21-30-808.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem11_label00_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_02-21-30-808.csv Completed graceful shutdown