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/Problem12_label19_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:49:00,429 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:49:00,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:49:00,447 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:49:00,448 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:49:00,449 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:49:00,450 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:49:00,452 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:49:00,454 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:49:00,455 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:49:00,455 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:49:00,456 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:49:00,457 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:49:00,458 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:49:00,459 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:49:00,460 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:49:00,461 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:49:00,463 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:49:00,465 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:49:00,466 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:49:00,467 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:49:00,469 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:49:00,471 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:49:00,471 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:49:00,472 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:49:00,473 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:49:00,474 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:49:00,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:49:00,475 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:49:00,477 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:49:00,477 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:49:00,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:49:00,478 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:49:00,478 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:49:00,479 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:49:00,480 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:49:00,480 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 11:49:00,495 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:49:00,496 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:49:00,497 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:49:00,497 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:49:00,497 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:49:00,497 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:49:00,498 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:49:00,498 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:49:00,498 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:49:00,498 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:49:00,498 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:49:00,499 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:49:00,499 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:49:00,500 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:49:00,500 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:49:00,500 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:49:00,500 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:49:00,500 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:49:00,500 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:49:00,501 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:49:00,501 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:49:00,501 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:49:00,501 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:49:00,502 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:49:00,502 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:49:00,502 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:49:00,502 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:49:00,502 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:49:00,503 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:49:00,503 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:49:00,503 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:49:00,503 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:49:00,503 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:49:00,564 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:49:00,580 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:49:00,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:49:00,588 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:49:00,589 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:49:00,589 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label19_false-unreach-call.c [2018-07-24 11:49:00,946 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c056fd2f6/ea8a51e3fcb546b0ac5bebae416c9344/FLAGc0a002cb9 [2018-07-24 11:49:01,382 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:49:01,383 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label19_false-unreach-call.c [2018-07-24 11:49:01,420 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c056fd2f6/ea8a51e3fcb546b0ac5bebae416c9344/FLAGc0a002cb9 [2018-07-24 11:49:01,442 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c056fd2f6/ea8a51e3fcb546b0ac5bebae416c9344 [2018-07-24 11:49:01,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:49:01,459 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:49:01,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:49:01,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:49:01,471 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:49:01,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:01,475 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47dbc58b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:01, skipping insertion in model container [2018-07-24 11:49:01,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:49:01" (1/1) ... [2018-07-24 11:49:01,827 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:49:02,801 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:49:02,819 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:49:03,593 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:49:03,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03 WrapperNode [2018-07-24 11:49:03,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:49:03,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:49:03,846 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:49:03,846 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:49:03,856 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:03,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:49:04,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:49:04,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:49:04,092 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:49:04,647 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,828 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,880 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (1/1) ... [2018-07-24 11:49:04,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:49:04,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:49:04,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:49:04,987 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:49:04,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (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 11:49:05,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:49:05,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:49:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 11:49:05,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 11:49:05,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:49:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:49:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:49:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:49:05,059 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 11:49:05,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 11:49:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 11:49:05,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 11:49:05,060 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:49:05,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:49:14,445 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:49:14,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:49:14 BoogieIcfgContainer [2018-07-24 11:49:14,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:49:14,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:49:14,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:49:14,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:49:14,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:49:01" (1/3) ... [2018-07-24 11:49:14,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e37268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:49:14, skipping insertion in model container [2018-07-24 11:49:14,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:49:03" (2/3) ... [2018-07-24 11:49:14,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e37268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:49:14, skipping insertion in model container [2018-07-24 11:49:14,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:49:14" (3/3) ... [2018-07-24 11:49:14,454 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label19_false-unreach-call.c [2018-07-24 11:49:14,463 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:49:14,475 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:49:14,536 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:49:14,537 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:49:14,537 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:49:14,537 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:49:14,537 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:49:14,537 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:49:14,537 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:49:14,538 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:49:14,538 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:49:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 11:49:14,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-24 11:49:14,599 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:14,600 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] [2018-07-24 11:49:14,601 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:49:14,605 INFO L82 PathProgramCache]: Analyzing trace with hash 900275691, now seen corresponding path program 1 times [2018-07-24 11:49:14,608 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:14,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:14,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:14,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:14,659 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:14,975 WARN L169 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:49:15,075 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 11:49:15,082 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:15,082 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:49:15,082 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:15,090 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:49:15,106 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:49:15,107 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:49:15,110 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-24 11:49:23,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:23,579 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-24 11:49:23,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:49:23,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-07-24 11:49:23,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:23,637 INFO L225 Difference]: With dead ends: 2446 [2018-07-24 11:49:23,638 INFO L226 Difference]: Without dead ends: 1604 [2018-07-24 11:49:23,654 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 11:49:23,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-24 11:49:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-24 11:49:23,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 11:49:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-07-24 11:49:23,861 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 21 [2018-07-24 11:49:23,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:23,862 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-07-24 11:49:23,862 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:49:23,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-07-24 11:49:23,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2018-07-24 11:49:23,870 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:23,871 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:49:23,871 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:49:23,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1247584796, now seen corresponding path program 1 times [2018-07-24 11:49:23,872 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:23,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:23,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:23,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:23,874 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:24,333 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:49:24,549 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:24,550 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:24,550 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:49:24,550 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:24,552 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:49:24,552 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:49:24,552 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:49:24,553 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-07-24 11:49:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:35,745 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-07-24 11:49:35,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:49:35,746 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2018-07-24 11:49:35,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:35,774 INFO L225 Difference]: With dead ends: 4818 [2018-07-24 11:49:35,775 INFO L226 Difference]: Without dead ends: 3220 [2018-07-24 11:49:35,781 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:49:35,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-07-24 11:49:35,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-07-24 11:49:35,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-07-24 11:49:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-07-24 11:49:35,892 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 95 [2018-07-24 11:49:35,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:35,893 INFO L471 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-07-24 11:49:35,893 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:49:35,893 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-07-24 11:49:35,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-07-24 11:49:35,900 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:35,901 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:49:35,901 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:49:35,901 INFO L82 PathProgramCache]: Analyzing trace with hash 204102725, now seen corresponding path program 1 times [2018-07-24 11:49:35,902 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:35,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:35,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:35,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:35,903 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:35,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:36,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:36,172 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:36,172 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:49:36,173 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:36,173 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:49:36,173 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:49:36,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:49:36,174 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 6 states. [2018-07-24 11:49:44,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:44,938 INFO L93 Difference]: Finished difference Result 8020 states and 14102 transitions. [2018-07-24 11:49:44,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:49:44,939 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-07-24 11:49:44,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:44,967 INFO L225 Difference]: With dead ends: 8020 [2018-07-24 11:49:44,967 INFO L226 Difference]: Without dead ends: 4840 [2018-07-24 11:49:44,977 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:49:44,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2018-07-24 11:49:45,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 4811. [2018-07-24 11:49:45,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4811 states. [2018-07-24 11:49:45,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4811 states to 4811 states and 7666 transitions. [2018-07-24 11:49:45,098 INFO L78 Accepts]: Start accepts. Automaton has 4811 states and 7666 transitions. Word has length 100 [2018-07-24 11:49:45,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:45,098 INFO L471 AbstractCegarLoop]: Abstraction has 4811 states and 7666 transitions. [2018-07-24 11:49:45,099 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:49:45,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4811 states and 7666 transitions. [2018-07-24 11:49:45,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-24 11:49:45,101 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:45,102 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:49:45,102 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:49:45,102 INFO L82 PathProgramCache]: Analyzing trace with hash 526634453, now seen corresponding path program 1 times [2018-07-24 11:49:45,102 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:45,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:45,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:45,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:45,104 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:45,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:45,276 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:45,276 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:45,277 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:49:45,277 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:45,277 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:49:45,278 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:49:45,278 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:49:45,278 INFO L87 Difference]: Start difference. First operand 4811 states and 7666 transitions. Second operand 6 states. [2018-07-24 11:49:55,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:49:55,295 INFO L93 Difference]: Finished difference Result 12775 states and 20227 transitions. [2018-07-24 11:49:55,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:49:55,299 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-07-24 11:49:55,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:49:55,339 INFO L225 Difference]: With dead ends: 12775 [2018-07-24 11:49:55,339 INFO L226 Difference]: Without dead ends: 7970 [2018-07-24 11:49:55,362 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:49:55,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7970 states. [2018-07-24 11:49:55,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7970 to 7941. [2018-07-24 11:49:55,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7941 states. [2018-07-24 11:49:55,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 11181 transitions. [2018-07-24 11:49:55,700 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 11181 transitions. Word has length 108 [2018-07-24 11:49:55,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:49:55,701 INFO L471 AbstractCegarLoop]: Abstraction has 7941 states and 11181 transitions. [2018-07-24 11:49:55,701 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:49:55,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 11181 transitions. [2018-07-24 11:49:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-07-24 11:49:55,709 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:49:55,710 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:49:55,710 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:49:55,710 INFO L82 PathProgramCache]: Analyzing trace with hash -356827360, now seen corresponding path program 1 times [2018-07-24 11:49:55,710 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:49:55,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:55,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:49:55,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:49:55,712 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:49:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:49:55,893 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:49:55,894 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:49:55,894 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:49:55,894 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:49:55,895 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:49:55,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:49:55,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:49:55,895 INFO L87 Difference]: Start difference. First operand 7941 states and 11181 transitions. Second operand 5 states. [2018-07-24 11:50:16,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:16,466 INFO L93 Difference]: Finished difference Result 27033 states and 38805 transitions. [2018-07-24 11:50:16,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:50:16,467 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-07-24 11:50:16,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:16,556 INFO L225 Difference]: With dead ends: 27033 [2018-07-24 11:50:16,556 INFO L226 Difference]: Without dead ends: 19098 [2018-07-24 11:50:16,594 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:50:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19098 states. [2018-07-24 11:50:16,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19098 to 19002. [2018-07-24 11:50:16,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19002 states. [2018-07-24 11:50:17,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19002 states to 19002 states and 24796 transitions. [2018-07-24 11:50:17,026 INFO L78 Accepts]: Start accepts. Automaton has 19002 states and 24796 transitions. Word has length 141 [2018-07-24 11:50:17,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:17,027 INFO L471 AbstractCegarLoop]: Abstraction has 19002 states and 24796 transitions. [2018-07-24 11:50:17,028 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:50:17,028 INFO L276 IsEmpty]: Start isEmpty. Operand 19002 states and 24796 transitions. [2018-07-24 11:50:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-07-24 11:50:17,033 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:17,034 INFO L353 BasicCegarLoop]: trace histogram [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, 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 11:50:17,034 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:50:17,039 INFO L82 PathProgramCache]: Analyzing trace with hash -16785988, now seen corresponding path program 1 times [2018-07-24 11:50:17,039 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:17,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:17,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:17,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:17,041 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:17,331 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:50:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 28 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:17,742 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:50:17,743 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 11:50:17,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:17,760 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:50:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:17,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:50:18,166 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:50:18,166 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:50:18,739 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 28 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:18,760 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:50:18,761 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 11:50:18,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:18,761 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:50:18,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:50:18,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:50:18,762 INFO L87 Difference]: Start difference. First operand 19002 states and 24796 transitions. Second operand 5 states. [2018-07-24 11:50:31,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:31,925 INFO L93 Difference]: Finished difference Result 60555 states and 83778 transitions. [2018-07-24 11:50:31,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:50:31,936 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2018-07-24 11:50:31,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:32,158 INFO L225 Difference]: With dead ends: 60555 [2018-07-24 11:50:32,158 INFO L226 Difference]: Without dead ends: 41559 [2018-07-24 11:50:32,234 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 390 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 11:50:32,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41559 states. [2018-07-24 11:50:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41559 to 41268. [2018-07-24 11:50:33,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41268 states. [2018-07-24 11:50:33,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41268 states to 41268 states and 54941 transitions. [2018-07-24 11:50:33,323 INFO L78 Accepts]: Start accepts. Automaton has 41268 states and 54941 transitions. Word has length 198 [2018-07-24 11:50:33,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:33,324 INFO L471 AbstractCegarLoop]: Abstraction has 41268 states and 54941 transitions. [2018-07-24 11:50:33,324 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:50:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 41268 states and 54941 transitions. [2018-07-24 11:50:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-07-24 11:50:33,332 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:33,332 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:50:33,333 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:50:33,333 INFO L82 PathProgramCache]: Analyzing trace with hash 559814772, now seen corresponding path program 1 times [2018-07-24 11:50:33,333 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:33,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:33,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:33,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:33,334 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:33,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:33,688 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 28 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:33,688 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:50:33,688 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:50:33,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:33,707 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:50:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:33,820 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:50:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:50:34,151 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:50:34,350 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 11:50:34,454 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 11:50:34,788 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 28 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:50:34,824 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:50:34,825 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 11:50:34,825 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:34,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:50:34,826 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:50:34,826 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:50:34,829 INFO L87 Difference]: Start difference. First operand 41268 states and 54941 transitions. Second operand 5 states. [2018-07-24 11:50:47,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:50:47,189 INFO L93 Difference]: Finished difference Result 121912 states and 169396 transitions. [2018-07-24 11:50:47,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:50:47,190 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 202 [2018-07-24 11:50:47,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:50:47,496 INFO L225 Difference]: With dead ends: 121912 [2018-07-24 11:50:47,497 INFO L226 Difference]: Without dead ends: 80650 [2018-07-24 11:50:47,638 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:50:47,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80650 states. [2018-07-24 11:50:49,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80650 to 78926. [2018-07-24 11:50:49,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78926 states. [2018-07-24 11:50:49,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78926 states to 78926 states and 102553 transitions. [2018-07-24 11:50:49,802 INFO L78 Accepts]: Start accepts. Automaton has 78926 states and 102553 transitions. Word has length 202 [2018-07-24 11:50:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:50:49,802 INFO L471 AbstractCegarLoop]: Abstraction has 78926 states and 102553 transitions. [2018-07-24 11:50:49,802 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:50:49,803 INFO L276 IsEmpty]: Start isEmpty. Operand 78926 states and 102553 transitions. [2018-07-24 11:50:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-07-24 11:50:49,812 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:50:49,812 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:49,812 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:50:49,812 INFO L82 PathProgramCache]: Analyzing trace with hash -660855583, now seen corresponding path program 1 times [2018-07-24 11:50:49,813 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:50:49,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:49,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:50:49,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:50:49,815 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:50:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:50:50,160 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:50:50,161 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:50:50,161 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:50:50,161 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:50:50,161 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:50:50,162 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:50:50,162 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:50:50,162 INFO L87 Difference]: Start difference. First operand 78926 states and 102553 transitions. Second operand 6 states. [2018-07-24 11:51:02,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:02,230 INFO L93 Difference]: Finished difference Result 196164 states and 264819 transitions. [2018-07-24 11:51:02,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:51:02,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2018-07-24 11:51:02,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:02,762 INFO L225 Difference]: With dead ends: 196164 [2018-07-24 11:51:02,762 INFO L226 Difference]: Without dead ends: 117244 [2018-07-24 11:51:03,007 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:51:03,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117244 states. [2018-07-24 11:51:04,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117244 to 112308. [2018-07-24 11:51:04,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112308 states. [2018-07-24 11:51:05,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112308 states to 112308 states and 140728 transitions. [2018-07-24 11:51:05,134 INFO L78 Accepts]: Start accepts. Automaton has 112308 states and 140728 transitions. Word has length 226 [2018-07-24 11:51:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:51:05,135 INFO L471 AbstractCegarLoop]: Abstraction has 112308 states and 140728 transitions. [2018-07-24 11:51:05,135 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:51:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 112308 states and 140728 transitions. [2018-07-24 11:51:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-07-24 11:51:05,145 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:51:05,145 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:05,145 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:51:05,145 INFO L82 PathProgramCache]: Analyzing trace with hash 588409450, now seen corresponding path program 1 times [2018-07-24 11:51:05,146 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:51:05,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:05,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:05,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:05,147 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:51:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:51:06,415 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:51:06,415 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:51:06,415 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:51:06,416 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:51:06,416 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:51:06,416 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:51:06,417 INFO L87 Difference]: Start difference. First operand 112308 states and 140728 transitions. Second operand 4 states. [2018-07-24 11:51:17,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:17,741 INFO L93 Difference]: Finished difference Result 269615 states and 345119 transitions. [2018-07-24 11:51:17,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:51:17,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2018-07-24 11:51:17,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:18,257 INFO L225 Difference]: With dead ends: 269615 [2018-07-24 11:51:18,257 INFO L226 Difference]: Without dead ends: 157313 [2018-07-24 11:51:19,532 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 11:51:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157313 states. [2018-07-24 11:51:21,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157313 to 154920. [2018-07-24 11:51:21,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154920 states. [2018-07-24 11:51:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154920 states to 154920 states and 194982 transitions. [2018-07-24 11:51:21,507 INFO L78 Accepts]: Start accepts. Automaton has 154920 states and 194982 transitions. Word has length 244 [2018-07-24 11:51:21,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:51:21,507 INFO L471 AbstractCegarLoop]: Abstraction has 154920 states and 194982 transitions. [2018-07-24 11:51:21,507 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:51:21,508 INFO L276 IsEmpty]: Start isEmpty. Operand 154920 states and 194982 transitions. [2018-07-24 11:51:21,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-07-24 11:51:21,568 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:51:21,568 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 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] [2018-07-24 11:51:21,568 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:51:21,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1089360770, now seen corresponding path program 1 times [2018-07-24 11:51:21,569 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:51:21,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:21,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:21,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:21,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:51:21,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:21,861 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 140 proven. 185 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-07-24 11:51:21,862 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:51:21,862 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 11:51:21,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:21,873 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:51:22,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:22,015 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:51:23,260 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 441 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-07-24 11:51:23,261 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:51:23,727 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 140 proven. 185 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-07-24 11:51:23,749 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:51:23,749 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:51:23,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:23,765 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:51:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:24,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:51:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 441 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2018-07-24 11:51:24,191 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:51:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 559 backedges. 140 proven. 185 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-07-24 11:51:24,503 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:51:24,504 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:51:24,504 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:51:24,505 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:51:24,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:51:24,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:51:24,506 INFO L87 Difference]: Start difference. First operand 154920 states and 194982 transitions. Second operand 9 states. [2018-07-24 11:51:40,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:40,883 INFO L93 Difference]: Finished difference Result 331108 states and 446539 transitions. [2018-07-24 11:51:40,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 11:51:40,883 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 406 [2018-07-24 11:51:40,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:42,544 INFO L225 Difference]: With dead ends: 331108 [2018-07-24 11:51:42,544 INFO L226 Difference]: Without dead ends: 150511 [2018-07-24 11:51:42,767 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1640 GetRequests, 1623 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:51:42,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150511 states. [2018-07-24 11:51:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150511 to 143935. [2018-07-24 11:51:44,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143935 states. [2018-07-24 11:51:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143935 states to 143935 states and 192628 transitions. [2018-07-24 11:51:46,091 INFO L78 Accepts]: Start accepts. Automaton has 143935 states and 192628 transitions. Word has length 406 [2018-07-24 11:51:46,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:51:46,092 INFO L471 AbstractCegarLoop]: Abstraction has 143935 states and 192628 transitions. [2018-07-24 11:51:46,092 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:51:46,092 INFO L276 IsEmpty]: Start isEmpty. Operand 143935 states and 192628 transitions. [2018-07-24 11:51:46,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2018-07-24 11:51:46,119 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:51:46,119 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 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 11:51:46,119 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:51:46,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1086807054, now seen corresponding path program 1 times [2018-07-24 11:51:46,120 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:51:46,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:46,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:51:46,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:51:46,121 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:51:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:51:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2018-07-24 11:51:46,491 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:51:46,491 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:51:46,491 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:51:46,492 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:51:46,492 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:51:46,492 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:51:46,493 INFO L87 Difference]: Start difference. First operand 143935 states and 192628 transitions. Second operand 3 states. [2018-07-24 11:51:58,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:51:58,090 INFO L93 Difference]: Finished difference Result 309660 states and 427381 transitions. [2018-07-24 11:51:58,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:51:58,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 409 [2018-07-24 11:51:58,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:51:58,678 INFO L225 Difference]: With dead ends: 309660 [2018-07-24 11:51:58,678 INFO L226 Difference]: Without dead ends: 166499 [2018-07-24 11:51:58,996 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:51:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166499 states. [2018-07-24 11:52:01,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166499 to 160939. [2018-07-24 11:52:01,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160939 states. [2018-07-24 11:52:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160939 states to 160939 states and 213064 transitions. [2018-07-24 11:52:01,605 INFO L78 Accepts]: Start accepts. Automaton has 160939 states and 213064 transitions. Word has length 409 [2018-07-24 11:52:01,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:01,606 INFO L471 AbstractCegarLoop]: Abstraction has 160939 states and 213064 transitions. [2018-07-24 11:52:01,606 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:52:01,606 INFO L276 IsEmpty]: Start isEmpty. Operand 160939 states and 213064 transitions. [2018-07-24 11:52:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2018-07-24 11:52:01,636 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:01,637 INFO L353 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:01,637 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:52:01,637 INFO L82 PathProgramCache]: Analyzing trace with hash 1528233311, now seen corresponding path program 1 times [2018-07-24 11:52:01,637 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:01,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:01,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:01,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:01,638 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:52:03,301 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:52:03,301 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 11:52:03,315 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:03,315 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:52:03,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:03,477 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:52:03,645 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:52:03,645 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:52:03,914 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:52:03,936 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:52:03,936 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 11:52:03,954 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:03,954 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:52:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:04,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:52:04,908 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:52:04,908 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:52:05,235 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 266 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:52:05,239 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:52:05,240 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 11:52:05,240 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:52:05,241 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:52:05,241 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:52:05,241 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:52:05,242 INFO L87 Difference]: Start difference. First operand 160939 states and 213064 transitions. Second operand 9 states. [2018-07-24 11:52:23,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:52:23,452 INFO L93 Difference]: Finished difference Result 358257 states and 514539 transitions. [2018-07-24 11:52:23,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 11:52:23,453 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 460 [2018-07-24 11:52:23,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:52:24,347 INFO L225 Difference]: With dead ends: 358257 [2018-07-24 11:52:24,347 INFO L226 Difference]: Without dead ends: 198092 [2018-07-24 11:52:24,724 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1858 GetRequests, 1839 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:52:24,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198092 states. [2018-07-24 11:52:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198092 to 191767. [2018-07-24 11:52:27,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191767 states. [2018-07-24 11:52:29,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191767 states to 191767 states and 250658 transitions. [2018-07-24 11:52:29,498 INFO L78 Accepts]: Start accepts. Automaton has 191767 states and 250658 transitions. Word has length 460 [2018-07-24 11:52:29,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:29,499 INFO L471 AbstractCegarLoop]: Abstraction has 191767 states and 250658 transitions. [2018-07-24 11:52:29,499 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:52:29,499 INFO L276 IsEmpty]: Start isEmpty. Operand 191767 states and 250658 transitions. [2018-07-24 11:52:29,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-07-24 11:52:29,535 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:29,535 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:52:29,535 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:52:29,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1636998274, now seen corresponding path program 1 times [2018-07-24 11:52:29,536 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:29,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:29,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:29,538 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:29,538 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:29,974 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-07-24 11:52:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 28 proven. 211 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:52:30,518 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:52:30,518 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 11:52:30,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:30,526 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:52:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:30,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:52:31,093 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2018-07-24 11:52:31,093 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:52:31,333 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2018-07-24 11:52:33,016 INFO L134 CoverageAnalysis]: Checked inductivity of 244 backedges. 28 proven. 211 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:52:33,037 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:52:33,038 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 11:52:33,038 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:33,039 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:52:33,039 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:52:33,039 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:52:33,039 INFO L87 Difference]: Start difference. First operand 191767 states and 250658 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 11:52:48,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-24 11:52:48,019 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:52:48,027 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:52:48,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:52:48 BoogieIcfgContainer [2018-07-24 11:52:48,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:52:48,028 INFO L168 Benchmark]: Toolchain (without parser) took 226572.31 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -79.5 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-07-24 11:52:48,029 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 11:52:48,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2384.63 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:52:48,030 INFO L168 Benchmark]: Boogie Procedure Inliner took 246.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2018-07-24 11:52:48,031 INFO L168 Benchmark]: Boogie Preprocessor took 894.05 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 914.4 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 11:52:48,032 INFO L168 Benchmark]: RCFGBuilder took 9459.99 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 167.8 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -136.4 MB). Peak memory consumption was 748.0 MB. Max. memory is 7.1 GB. [2018-07-24 11:52:48,033 INFO L168 Benchmark]: TraceAbstraction took 213580.61 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 1.5 GB in the end (delta: 966.4 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-07-24 11:52:48,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2384.63 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 246.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 894.05 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 914.4 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9459.99 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 167.8 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -136.4 MB). Peak memory consumption was 748.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213580.61 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.4 GB in the beginning and 1.5 GB in the end (delta: 966.4 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 54). Cancelled while BasicCegarLoop was constructing difference of abstraction (191767states) and interpolant automaton (currently 9 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (385684 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 213.4s OverallTime, 13 OverallIterations, 5 TraceHistogramMax, 176.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3253 SDtfs, 35597 SDslu, 2313 SDs, 0 SdLazy, 77266 SolverSat, 14756 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 133.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5410 GetRequests, 5292 SyntacticMatches, 18 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=191767occurred in iteration=12, 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: 19.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 27993 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 12.4s InterpolantComputationTime, 5766 NumberOfCodeBlocks, 5766 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 8383 ConstructedInterpolants, 0 QuantifiedInterpolants, 14622618 SizeOfPredicates, 7 NumberOfNonLiveVariables, 4407 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 27 InterpolantComputations, 11 PerfectInterpolantSequences, 5098/6405 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/Problem12_label19_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-52-48-058.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label19_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-52-48-058.csv Completed graceful shutdown