java -Xmx8000000000 -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 csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:17:09,298 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:17:09,301 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:17:09,316 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:17:09,317 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:17:09,318 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:17:09,321 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:17:09,323 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:17:09,326 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:17:09,327 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:17:09,329 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:17:09,330 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:17:09,330 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:17:09,331 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:17:09,332 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:17:09,333 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:17:09,336 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:17:09,338 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:17:09,348 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:17:09,350 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:17:09,353 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:17:09,354 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:17:09,357 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:17:09,358 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:17:09,359 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:17:09,360 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:17:09,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:17:09,362 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:17:09,363 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:17:09,367 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:17:09,368 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:17:09,369 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:17:09,370 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:17:09,370 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:17:09,371 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:17:09,372 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:17:09,372 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:17:09,402 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:17:09,402 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:17:09,403 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:17:09,403 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:17:09,403 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:17:09,404 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:17:09,404 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:17:09,404 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:17:09,404 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:17:09,404 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:17:09,405 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:17:09,405 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:17:09,406 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:17:09,406 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:17:09,406 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:17:09,406 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:17:09,406 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:17:09,406 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:17:09,407 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:17:09,407 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:17:09,407 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:17:09,407 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:17:09,407 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:17:09,408 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:17:09,408 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:17:09,408 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:17:09,408 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:17:09,408 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:17:09,409 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:17:09,409 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:17:09,409 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:17:09,409 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:17:09,409 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:17:09,466 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:17:09,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:17:09,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:17:09,484 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:17:09,485 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:17:09,486 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-07-24 14:17:09,825 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6daa65506/98f5bf960a1641a482e93e0aa7f987b2/FLAGa1f1f1693 [2018-07-24 14:17:10,282 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:17:10,283 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-07-24 14:17:10,315 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6daa65506/98f5bf960a1641a482e93e0aa7f987b2/FLAGa1f1f1693 [2018-07-24 14:17:10,331 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6daa65506/98f5bf960a1641a482e93e0aa7f987b2 [2018-07-24 14:17:10,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:17:10,344 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:17:10,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:17:10,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:17:10,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:17:10,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:17:10" (1/1) ... [2018-07-24 14:17:10,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39e68d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:10, skipping insertion in model container [2018-07-24 14:17:10,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:17:10" (1/1) ... [2018-07-24 14:17:10,745 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:17:11,901 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:17:11,919 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:17:12,797 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:17:13,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13 WrapperNode [2018-07-24 14:17:13,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:17:13,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:17:13,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:17:13,196 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:17:13,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:13,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:13,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:17:13,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:17:13,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:17:13,490 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:17:14,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,619 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... [2018-07-24 14:17:14,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:17:14,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:17:14,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:17:14,680 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:17:14,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:17:14,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:17:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:17:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:17:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:17:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:17:14,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:17:14,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:17:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:17:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:17:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:17:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:17:14,750 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:17:14,750 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:17:14,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:17:29,364 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:17:29,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:17:29 BoogieIcfgContainer [2018-07-24 14:17:29,365 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:17:29,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:17:29,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:17:29,370 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:17:29,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:17:10" (1/3) ... [2018-07-24 14:17:29,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b68b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:17:29, skipping insertion in model container [2018-07-24 14:17:29,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:13" (2/3) ... [2018-07-24 14:17:29,372 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f6b68b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:17:29, skipping insertion in model container [2018-07-24 14:17:29,372 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:17:29" (3/3) ... [2018-07-24 14:17:29,374 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-07-24 14:17:29,386 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:17:29,398 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:17:29,473 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:17:29,474 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:17:29,474 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:17:29,475 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:17:29,475 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:17:29,475 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:17:29,475 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:17:29,475 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:17:29,475 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:17:29,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:17:29,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-07-24 14:17:29,531 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:29,532 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:29,533 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:29,537 INFO L82 PathProgramCache]: Analyzing trace with hash 826381732, now seen corresponding path program 1 times [2018-07-24 14:17:29,539 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:29,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:29,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:29,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:29,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:30,052 WARN L169 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:17:30,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:30,191 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:30,192 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:17:30,192 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:30,198 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:17:30,213 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:17:30,214 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:30,216 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 14:17:39,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:39,825 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-24 14:17:39,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:17:39,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-07-24 14:17:39,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:39,866 INFO L225 Difference]: With dead ends: 3097 [2018-07-24 14:17:39,866 INFO L226 Difference]: Without dead ends: 1975 [2018-07-24 14:17:39,876 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:39,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-24 14:17:40,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-24 14:17:40,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-24 14:17:40,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-24 14:17:40,019 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 54 [2018-07-24 14:17:40,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:40,020 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-24 14:17:40,020 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:40,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-24 14:17:40,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-07-24 14:17:40,028 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:40,028 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:40,028 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:40,029 INFO L82 PathProgramCache]: Analyzing trace with hash -37326668, now seen corresponding path program 1 times [2018-07-24 14:17:40,029 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:40,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:40,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:40,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:40,031 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:40,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:40,324 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:40,324 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:40,325 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:17:40,325 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:40,327 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:17:40,327 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:17:40,327 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:17:40,328 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-24 14:18:01,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:01,333 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-07-24 14:18:01,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:18:01,335 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-07-24 14:18:01,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:01,363 INFO L225 Difference]: With dead ends: 5736 [2018-07-24 14:18:01,364 INFO L226 Difference]: Without dead ends: 3768 [2018-07-24 14:18:01,371 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:18:01,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-07-24 14:18:01,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-07-24 14:18:01,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-07-24 14:18:01,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-07-24 14:18:01,503 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 130 [2018-07-24 14:18:01,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:01,503 INFO L471 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-07-24 14:18:01,503 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:18:01,504 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-07-24 14:18:01,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-24 14:18:01,519 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:01,522 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:18:01,522 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:01,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1331044824, now seen corresponding path program 1 times [2018-07-24 14:18:01,522 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:01,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:01,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:01,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:01,524 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:18:01,880 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:01,880 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:18:01,880 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:01,881 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:18:01,881 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:18:01,881 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:18:01,882 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-07-24 14:18:20,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:20,886 INFO L93 Difference]: Finished difference Result 12385 states and 19158 transitions. [2018-07-24 14:18:20,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:18:20,888 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-07-24 14:18:20,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:20,936 INFO L225 Difference]: With dead ends: 12385 [2018-07-24 14:18:20,937 INFO L226 Difference]: Without dead ends: 8705 [2018-07-24 14:18:20,956 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:18:20,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2018-07-24 14:18:21,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8670. [2018-07-24 14:18:21,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8670 states. [2018-07-24 14:18:21,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 12401 transitions. [2018-07-24 14:18:21,174 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 12401 transitions. Word has length 144 [2018-07-24 14:18:21,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:21,174 INFO L471 AbstractCegarLoop]: Abstraction has 8670 states and 12401 transitions. [2018-07-24 14:18:21,174 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:18:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 12401 transitions. [2018-07-24 14:18:21,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-07-24 14:18:21,181 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:21,182 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:18:21,182 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:21,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1977220836, now seen corresponding path program 1 times [2018-07-24 14:18:21,182 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:21,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:21,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:21,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:21,184 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:21,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:21,467 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:18:21,467 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:21,467 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:18:21,468 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:21,468 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:18:21,470 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:18:21,470 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:18:21,471 INFO L87 Difference]: Start difference. First operand 8670 states and 12401 transitions. Second operand 4 states. [2018-07-24 14:18:35,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:35,115 INFO L93 Difference]: Finished difference Result 33591 states and 50436 transitions. [2018-07-24 14:18:35,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:18:35,117 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2018-07-24 14:18:35,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:35,226 INFO L225 Difference]: With dead ends: 33591 [2018-07-24 14:18:35,227 INFO L226 Difference]: Without dead ends: 24927 [2018-07-24 14:18:35,269 INFO L573 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 [2018-07-24 14:18:35,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24927 states. [2018-07-24 14:18:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24927 to 24891. [2018-07-24 14:18:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24891 states. [2018-07-24 14:18:35,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24891 states to 24891 states and 34086 transitions. [2018-07-24 14:18:35,934 INFO L78 Accepts]: Start accepts. Automaton has 24891 states and 34086 transitions. Word has length 170 [2018-07-24 14:18:35,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:35,935 INFO L471 AbstractCegarLoop]: Abstraction has 24891 states and 34086 transitions. [2018-07-24 14:18:35,935 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:18:35,935 INFO L276 IsEmpty]: Start isEmpty. Operand 24891 states and 34086 transitions. [2018-07-24 14:18:35,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-07-24 14:18:35,960 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:35,960 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 14:18:35,961 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:35,961 INFO L82 PathProgramCache]: Analyzing trace with hash -994688678, now seen corresponding path program 1 times [2018-07-24 14:18:35,961 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:35,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:35,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:35,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:35,962 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:36,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:36,664 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 309 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 14:18:36,665 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:36,666 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/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 [2018-07-24 14:18:36,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:36,685 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:36,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:36,883 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 14:18:37,429 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:37,796 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 14:18:37,817 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:37,818 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:18:37,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:37,836 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:38,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:38,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:38,395 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 309 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 14:18:38,396 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:38,951 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 311 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 14:18:38,953 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:18:38,953 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 14:18:38,953 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:18:38,954 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:18:38,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:18:38,955 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:18:38,957 INFO L87 Difference]: Start difference. First operand 24891 states and 34086 transitions. Second operand 9 states. [2018-07-24 14:19:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:03,497 INFO L93 Difference]: Finished difference Result 67659 states and 105297 transitions. [2018-07-24 14:19:03,498 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 14:19:03,498 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 329 [2018-07-24 14:19:03,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:03,734 INFO L225 Difference]: With dead ends: 67659 [2018-07-24 14:19:03,735 INFO L226 Difference]: Without dead ends: 42774 [2018-07-24 14:19:03,925 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 1315 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-07-24 14:19:03,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42774 states. [2018-07-24 14:19:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42774 to 42642. [2018-07-24 14:19:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42642 states. [2018-07-24 14:19:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42642 states to 42642 states and 60128 transitions. [2018-07-24 14:19:05,211 INFO L78 Accepts]: Start accepts. Automaton has 42642 states and 60128 transitions. Word has length 329 [2018-07-24 14:19:05,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:05,211 INFO L471 AbstractCegarLoop]: Abstraction has 42642 states and 60128 transitions. [2018-07-24 14:19:05,211 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:19:05,212 INFO L276 IsEmpty]: Start isEmpty. Operand 42642 states and 60128 transitions. [2018-07-24 14:19:05,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-07-24 14:19:05,244 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:05,245 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:19:05,245 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:05,245 INFO L82 PathProgramCache]: Analyzing trace with hash -2100679619, now seen corresponding path program 1 times [2018-07-24 14:19:05,246 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:05,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:05,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:05,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:05,247 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:06,092 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-07-24 14:19:06,093 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:19:06,093 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:19:06,093 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:06,094 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:19:06,094 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:19:06,094 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:06,094 INFO L87 Difference]: Start difference. First operand 42642 states and 60128 transitions. Second operand 4 states. [2018-07-24 14:19:24,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:24,182 INFO L93 Difference]: Finished difference Result 155700 states and 247300 transitions. [2018-07-24 14:19:24,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:19:24,184 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2018-07-24 14:19:24,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:24,694 INFO L225 Difference]: With dead ends: 155700 [2018-07-24 14:19:24,694 INFO L226 Difference]: Without dead ends: 113064 [2018-07-24 14:19:24,884 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:24,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113064 states. [2018-07-24 14:19:26,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113064 to 112895. [2018-07-24 14:19:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112895 states. [2018-07-24 14:19:28,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112895 states to 112895 states and 168365 transitions. [2018-07-24 14:19:28,228 INFO L78 Accepts]: Start accepts. Automaton has 112895 states and 168365 transitions. Word has length 328 [2018-07-24 14:19:28,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:28,229 INFO L471 AbstractCegarLoop]: Abstraction has 112895 states and 168365 transitions. [2018-07-24 14:19:28,229 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:19:28,229 INFO L276 IsEmpty]: Start isEmpty. Operand 112895 states and 168365 transitions. [2018-07-24 14:19:28,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-07-24 14:19:28,283 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:28,284 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:19:28,284 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:28,285 INFO L82 PathProgramCache]: Analyzing trace with hash 79766557, now seen corresponding path program 1 times [2018-07-24 14:19:28,285 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:28,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:28,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:28,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:28,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:28,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:28,630 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-07-24 14:19:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 14:19:28,679 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:28,679 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:19:28,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:28,687 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:28,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 14:19:28,888 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:28,975 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 14:19:28,996 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:19:28,997 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-07-24 14:19:28,997 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:28,997 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:19:28,998 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:19:28,998 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:28,998 INFO L87 Difference]: Start difference. First operand 112895 states and 168365 transitions. Second operand 3 states. [2018-07-24 14:19:39,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:39,831 INFO L93 Difference]: Finished difference Result 246869 states and 383182 transitions. [2018-07-24 14:19:39,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:19:39,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2018-07-24 14:19:39,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:40,464 INFO L225 Difference]: With dead ends: 246869 [2018-07-24 14:19:40,464 INFO L226 Difference]: Without dead ends: 147084 [2018-07-24 14:19:40,729 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:40,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147084 states. [2018-07-24 14:19:44,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147084 to 147079. [2018-07-24 14:19:44,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147079 states. [2018-07-24 14:19:44,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147079 states to 147079 states and 213127 transitions. [2018-07-24 14:19:44,641 INFO L78 Accepts]: Start accepts. Automaton has 147079 states and 213127 transitions. Word has length 355 [2018-07-24 14:19:44,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:44,641 INFO L471 AbstractCegarLoop]: Abstraction has 147079 states and 213127 transitions. [2018-07-24 14:19:44,641 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:19:44,641 INFO L276 IsEmpty]: Start isEmpty. Operand 147079 states and 213127 transitions. [2018-07-24 14:19:44,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-07-24 14:19:44,687 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:44,688 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:19:44,688 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:44,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1306109818, now seen corresponding path program 1 times [2018-07-24 14:19:44,689 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:44,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:44,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:44,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:44,690 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 227 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:19:45,352 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:45,353 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:19:45,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:45,364 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:45,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:45,647 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-07-24 14:19:45,648 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:45,834 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-07-24 14:19:45,855 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:19:45,856 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-07-24 14:19:45,856 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:45,856 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:19:45,857 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:19:45,857 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:19:45,857 INFO L87 Difference]: Start difference. First operand 147079 states and 213127 transitions. Second operand 3 states. [2018-07-24 14:19:54,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:54,078 INFO L93 Difference]: Finished difference Result 281017 states and 410512 transitions. [2018-07-24 14:19:54,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:19:54,079 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 362 [2018-07-24 14:19:54,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:54,597 INFO L225 Difference]: With dead ends: 281017 [2018-07-24 14:19:54,597 INFO L226 Difference]: Without dead ends: 147048 [2018-07-24 14:19:54,828 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:19:54,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147048 states. [2018-07-24 14:19:57,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147048 to 147048. [2018-07-24 14:19:57,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147048 states. [2018-07-24 14:19:58,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147048 states to 147048 states and 212687 transitions. [2018-07-24 14:19:58,178 INFO L78 Accepts]: Start accepts. Automaton has 147048 states and 212687 transitions. Word has length 362 [2018-07-24 14:19:58,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:58,179 INFO L471 AbstractCegarLoop]: Abstraction has 147048 states and 212687 transitions. [2018-07-24 14:19:58,179 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:19:58,179 INFO L276 IsEmpty]: Start isEmpty. Operand 147048 states and 212687 transitions. [2018-07-24 14:19:58,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-07-24 14:19:58,223 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:58,224 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:19:58,224 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:58,224 INFO L82 PathProgramCache]: Analyzing trace with hash -298838546, now seen corresponding path program 1 times [2018-07-24 14:19:58,224 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:58,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:58,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:58,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:58,225 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:58,586 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:19:58,586 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:58,586 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:19:58,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:58,596 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:58,739 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:58,932 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:19:58,932 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:00,569 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:00,569 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:20:00,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:00,588 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:00,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:00,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:01,084 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:01,084 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:01,315 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:20:01,315 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-07-24 14:20:01,315 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:20:01,317 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:20:01,317 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:20:01,317 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:20:01,318 INFO L87 Difference]: Start difference. First operand 147048 states and 212687 transitions. Second operand 9 states. [2018-07-24 14:20:19,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:19,154 INFO L93 Difference]: Finished difference Result 382997 states and 618150 transitions. [2018-07-24 14:20:19,154 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-24 14:20:19,154 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 393 [2018-07-24 14:20:19,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:19,971 INFO L225 Difference]: With dead ends: 382997 [2018-07-24 14:20:19,971 INFO L226 Difference]: Without dead ends: 227889 [2018-07-24 14:20:20,290 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1582 GetRequests, 1563 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-07-24 14:20:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227889 states. [2018-07-24 14:20:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227889 to 226014. [2018-07-24 14:20:30,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226014 states. [2018-07-24 14:20:32,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226014 states to 226014 states and 310412 transitions. [2018-07-24 14:20:32,166 INFO L78 Accepts]: Start accepts. Automaton has 226014 states and 310412 transitions. Word has length 393 [2018-07-24 14:20:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:32,166 INFO L471 AbstractCegarLoop]: Abstraction has 226014 states and 310412 transitions. [2018-07-24 14:20:32,166 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:20:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 226014 states and 310412 transitions. [2018-07-24 14:20:32,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-07-24 14:20:32,238 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:32,238 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2018-07-24 14:20:32,239 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:20:32,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1215829525, now seen corresponding path program 1 times [2018-07-24 14:20:32,239 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:32,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:32,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:32,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:32,240 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:32,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 14:20:32,990 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:32,990 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:20:33,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:33,002 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:33,185 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:34,221 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2018-07-24 14:20:34,221 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:34,369 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2018-07-24 14:20:34,390 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:20:34,390 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-07-24 14:20:34,390 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:34,391 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:20:34,391 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:20:34,391 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:20:34,392 INFO L87 Difference]: Start difference. First operand 226014 states and 310412 transitions. Second operand 3 states. [2018-07-24 14:20:45,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:45,268 INFO L93 Difference]: Finished difference Result 445521 states and 613638 transitions. [2018-07-24 14:20:45,269 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:20:45,269 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 433 [2018-07-24 14:20:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:46,173 INFO L225 Difference]: With dead ends: 445521 [2018-07-24 14:20:46,173 INFO L226 Difference]: Without dead ends: 219513 [2018-07-24 14:20:47,237 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 864 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:20:47,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219513 states. [2018-07-24 14:20:49,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219513 to 219509. [2018-07-24 14:20:49,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219509 states. Received shutdown request... [2018-07-24 14:20:50,349 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:20:50,353 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:20:50,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:20:50 BoogieIcfgContainer [2018-07-24 14:20:50,354 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:20:50,355 INFO L168 Benchmark]: Toolchain (without parser) took 220012.19 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-07-24 14:20:50,356 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:20:50,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2849.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:50,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 293.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:50,358 INFO L168 Benchmark]: Boogie Preprocessor took 1189.71 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.4 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:50,359 INFO L168 Benchmark]: RCFGBuilder took 14686.04 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 147.8 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 95.6 MB). Peak memory consumption was 744.4 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:50,360 INFO L168 Benchmark]: TraceAbstraction took 200987.94 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -165.4 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-07-24 14:20:50,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2849.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 293.63 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1189.71 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14686.04 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 147.8 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 95.6 MB). Peak memory consumption was 744.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200987.94 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -165.4 MB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while ReachableStatesComputation was computing reachable states (56152 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 200.8s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 159.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7357 SDtfs, 28234 SDslu, 4537 SDs, 0 SdLazy, 53730 SolverSat, 14192 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 120.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5267 GetRequests, 5189 SyntacticMatches, 14 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226014occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 28.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 2335 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 5292 NumberOfCodeBlocks, 5292 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7862 ConstructedInterpolants, 0 QuantifiedInterpolants, 6382588 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4250 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 6146/6249 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/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-20-50-385.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-20-50-385.csv Completed graceful shutdown