java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:56:43,318 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:56:43,321 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:56:43,333 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:56:43,333 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:56:43,334 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:56:43,335 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:56:43,338 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:56:43,340 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:56:43,341 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:56:43,342 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:56:43,342 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:56:43,343 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:56:43,345 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:56:43,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:56:43,350 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:56:43,351 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:56:43,355 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:56:43,366 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:56:43,368 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:56:43,369 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:56:43,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:56:43,376 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:56:43,376 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:56:43,377 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:56:43,378 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:56:43,379 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:56:43,380 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:56:43,381 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:56:43,382 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:56:43,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:56:43,388 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:56:43,388 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:56:43,389 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:56:43,391 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:56:43,392 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:56:43,392 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 11:56:43,420 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:56:43,420 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:56:43,421 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:56:43,421 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:56:43,422 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:56:43,422 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:56:43,422 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:56:43,423 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:56:43,423 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:56:43,423 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:56:43,423 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:56:43,424 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:56:43,425 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:56:43,425 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:56:43,426 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:56:43,426 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:56:43,426 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:56:43,426 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:56:43,426 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:56:43,427 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:56:43,427 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:56:43,427 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:56:43,427 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:56:43,429 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:56:43,429 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:56:43,429 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:56:43,429 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:56:43,429 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:56:43,430 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:56:43,430 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:56:43,430 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:56:43,430 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:56:43,431 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:56:43,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:56:43,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:56:43,519 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:56:43,520 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:56:43,520 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:56:43,521 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c [2018-07-24 11:56:43,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea325898a/7128ac8a4cc44cf1982198ee4d813391/FLAG77ee06208 [2018-07-24 11:56:44,405 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:56:44,406 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label25_false-unreach-call.c [2018-07-24 11:56:44,439 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea325898a/7128ac8a4cc44cf1982198ee4d813391/FLAG77ee06208 [2018-07-24 11:56:44,456 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea325898a/7128ac8a4cc44cf1982198ee4d813391 [2018-07-24 11:56:44,467 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:56:44,469 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:56:44,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:56:44,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:56:44,479 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:56:44,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:56:44" (1/1) ... [2018-07-24 11:56:44,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d65a7e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:44, skipping insertion in model container [2018-07-24 11:56:44,484 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:56:44" (1/1) ... [2018-07-24 11:56:44,882 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:56:46,324 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:56:46,344 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:56:47,200 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:56:47,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47 WrapperNode [2018-07-24 11:56:47,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:56:47,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:56:47,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:56:47,524 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:56:47,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:47,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:47,887 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:56:47,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:56:47,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:56:47,888 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:56:48,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:48,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:48,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:48,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:48,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:48,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:49,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (1/1) ... [2018-07-24 11:56:49,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:56:49,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:56:49,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:56:49,204 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:56:49,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (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 11:56:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:56:49,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:56:49,270 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 11:56:49,270 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 11:56:49,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:56:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:56:49,271 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:56:49,271 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:56:49,271 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 11:56:49,271 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 11:56:49,272 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 11:56:49,272 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 11:56:49,272 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 11:56:49,272 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 11:57:07,516 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:57:07,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:57:07 BoogieIcfgContainer [2018-07-24 11:57:07,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:57:07,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:57:07,518 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:57:07,522 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:57:07,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:56:44" (1/3) ... [2018-07-24 11:57:07,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:57:07, skipping insertion in model container [2018-07-24 11:57:07,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:56:47" (2/3) ... [2018-07-24 11:57:07,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd9731 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:57:07, skipping insertion in model container [2018-07-24 11:57:07,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:57:07" (3/3) ... [2018-07-24 11:57:07,526 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label25_false-unreach-call.c [2018-07-24 11:57:07,535 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:57:07,543 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:57:07,601 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:57:07,602 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:57:07,602 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:57:07,602 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:57:07,602 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:57:07,603 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:57:07,603 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:57:07,603 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:57:07,603 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:57:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 11:57:07,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-24 11:57:07,650 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:07,651 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:57:07,652 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 11:57:07,657 INFO L82 PathProgramCache]: Analyzing trace with hash -495026044, now seen corresponding path program 1 times [2018-07-24 11:57:07,660 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:07,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:07,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:07,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:07,706 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:07,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:08,121 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:57:08,229 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 11:57:08,231 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:57:08,231 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:57:08,231 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:08,237 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:57:08,253 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:57:08,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:57:08,256 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 11:57:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:17,986 INFO L93 Difference]: Finished difference Result 3101 states and 5730 transitions. [2018-07-24 11:57:17,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:57:17,988 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-07-24 11:57:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:18,027 INFO L225 Difference]: With dead ends: 3101 [2018-07-24 11:57:18,027 INFO L226 Difference]: Without dead ends: 1979 [2018-07-24 11:57:18,043 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:57:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1979 states. [2018-07-24 11:57:18,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1979 to 1959. [2018-07-24 11:57:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-07-24 11:57:18,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3535 transitions. [2018-07-24 11:57:18,219 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3535 transitions. Word has length 30 [2018-07-24 11:57:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:18,220 INFO L471 AbstractCegarLoop]: Abstraction has 1959 states and 3535 transitions. [2018-07-24 11:57:18,220 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:57:18,220 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3535 transitions. [2018-07-24 11:57:18,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-24 11:57:18,231 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:18,232 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:18,232 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 11:57:18,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1714292372, now seen corresponding path program 1 times [2018-07-24 11:57:18,235 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:18,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:18,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:18,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:18,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:18,569 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:57:18,570 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:57:18,570 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:57:18,570 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:18,572 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:57:18,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:57:18,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:57:18,573 INFO L87 Difference]: Start difference. First operand 1959 states and 3535 transitions. Second operand 5 states. [2018-07-24 11:57:37,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:37,089 INFO L93 Difference]: Finished difference Result 5716 states and 10466 transitions. [2018-07-24 11:57:37,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:57:37,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2018-07-24 11:57:37,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:37,123 INFO L225 Difference]: With dead ends: 5716 [2018-07-24 11:57:37,124 INFO L226 Difference]: Without dead ends: 3763 [2018-07-24 11:57:37,131 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:57:37,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3763 states. [2018-07-24 11:57:37,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3763 to 3680. [2018-07-24 11:57:37,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3680 states. [2018-07-24 11:57:37,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3680 states to 3680 states and 6043 transitions. [2018-07-24 11:57:37,276 INFO L78 Accepts]: Start accepts. Automaton has 3680 states and 6043 transitions. Word has length 106 [2018-07-24 11:57:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:37,277 INFO L471 AbstractCegarLoop]: Abstraction has 3680 states and 6043 transitions. [2018-07-24 11:57:37,277 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:57:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 6043 transitions. [2018-07-24 11:57:37,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2018-07-24 11:57:37,285 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:37,286 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:37,287 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 11:57:37,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1400424215, now seen corresponding path program 1 times [2018-07-24 11:57:37,287 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:37,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:37,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:37,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:37,289 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:37,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:37,549 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:57:37,550 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:57:37,550 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:57:37,550 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:37,551 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:57:37,551 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:57:37,551 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:57:37,552 INFO L87 Difference]: Start difference. First operand 3680 states and 6043 transitions. Second operand 6 states. [2018-07-24 11:57:56,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:56,410 INFO L93 Difference]: Finished difference Result 12449 states and 20659 transitions. [2018-07-24 11:57:56,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:57:56,410 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2018-07-24 11:57:56,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:56,463 INFO L225 Difference]: With dead ends: 12449 [2018-07-24 11:57:56,463 INFO L226 Difference]: Without dead ends: 8775 [2018-07-24 11:57:56,486 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-07-24 11:57:56,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8775 states. [2018-07-24 11:57:56,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8775 to 8747. [2018-07-24 11:57:56,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8747 states. [2018-07-24 11:57:56,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8747 states to 8747 states and 13300 transitions. [2018-07-24 11:57:56,698 INFO L78 Accepts]: Start accepts. Automaton has 8747 states and 13300 transitions. Word has length 107 [2018-07-24 11:57:56,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:56,699 INFO L471 AbstractCegarLoop]: Abstraction has 8747 states and 13300 transitions. [2018-07-24 11:57:56,699 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:57:56,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8747 states and 13300 transitions. [2018-07-24 11:57:56,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-24 11:57:56,704 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:56,704 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:56,704 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 11:57:56,705 INFO L82 PathProgramCache]: Analyzing trace with hash -957993764, now seen corresponding path program 1 times [2018-07-24 11:57:56,705 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:56,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:56,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:56,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:56,706 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:56,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:56,936 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:57:56,937 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:57:56,937 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:57:56,937 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:56,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:57:56,938 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:57:56,938 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:57:56,939 INFO L87 Difference]: Start difference. First operand 8747 states and 13300 transitions. Second operand 4 states. [2018-07-24 11:58:10,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:58:10,418 INFO L93 Difference]: Finished difference Result 30519 states and 48811 transitions. [2018-07-24 11:58:10,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:58:10,423 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 151 [2018-07-24 11:58:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:58:10,535 INFO L225 Difference]: With dead ends: 30519 [2018-07-24 11:58:10,535 INFO L226 Difference]: Without dead ends: 21778 [2018-07-24 11:58:10,590 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 11:58:10,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21778 states. [2018-07-24 11:58:11,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21778 to 21776. [2018-07-24 11:58:11,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21776 states. [2018-07-24 11:58:11,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21776 states to 21776 states and 31928 transitions. [2018-07-24 11:58:11,160 INFO L78 Accepts]: Start accepts. Automaton has 21776 states and 31928 transitions. Word has length 151 [2018-07-24 11:58:11,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:58:11,161 INFO L471 AbstractCegarLoop]: Abstraction has 21776 states and 31928 transitions. [2018-07-24 11:58:11,161 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:58:11,161 INFO L276 IsEmpty]: Start isEmpty. Operand 21776 states and 31928 transitions. [2018-07-24 11:58:11,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-24 11:58:11,168 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:58:11,171 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:58:11,171 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 11:58:11,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1907259232, now seen corresponding path program 1 times [2018-07-24 11:58:11,172 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:58:11,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:11,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:11,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:11,173 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:58:11,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:11,445 WARN L169 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:58:12,104 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:58:12,105 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:12,105 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 11:58:12,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:12,120 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:12,253 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:12,822 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 11:58:12,823 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:58:13,900 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:58:13,900 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-07-24 11:58:13,901 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:58:13,901 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:58:13,902 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:58:13,902 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:58:13,902 INFO L87 Difference]: Start difference. First operand 21776 states and 31928 transitions. Second operand 5 states. [2018-07-24 11:58:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:58:35,373 INFO L93 Difference]: Finished difference Result 58716 states and 90977 transitions. [2018-07-24 11:58:35,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:58:35,374 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 184 [2018-07-24 11:58:35,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:58:35,575 INFO L225 Difference]: With dead ends: 58716 [2018-07-24 11:58:35,575 INFO L226 Difference]: Without dead ends: 36946 [2018-07-24 11:58:35,675 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-07-24 11:58:35,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36946 states. [2018-07-24 11:58:36,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36946 to 36846. [2018-07-24 11:58:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36846 states. [2018-07-24 11:58:36,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36846 states to 36846 states and 53169 transitions. [2018-07-24 11:58:36,656 INFO L78 Accepts]: Start accepts. Automaton has 36846 states and 53169 transitions. Word has length 184 [2018-07-24 11:58:36,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:58:36,657 INFO L471 AbstractCegarLoop]: Abstraction has 36846 states and 53169 transitions. [2018-07-24 11:58:36,657 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:58:36,658 INFO L276 IsEmpty]: Start isEmpty. Operand 36846 states and 53169 transitions. [2018-07-24 11:58:36,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-07-24 11:58:36,668 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:58:36,668 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:58:36,668 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 11:58:36,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1102463743, now seen corresponding path program 1 times [2018-07-24 11:58:36,669 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:58:36,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:36,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:36,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:36,670 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:58:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:37,069 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 46 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:58:37,069 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:37,070 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) [2018-07-24 11:58:37,085 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:37,085 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:58:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:37,199 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 11:58:37,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:38,662 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 46 proven. 72 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:58:38,701 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:58:38,701 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 11:58:38,701 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:58:38,702 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:58:38,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:58:38,702 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:58:38,703 INFO L87 Difference]: Start difference. First operand 36846 states and 53169 transitions. Second operand 5 states. [2018-07-24 11:58:54,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:58:54,829 INFO L93 Difference]: Finished difference Result 71646 states and 106608 transitions. [2018-07-24 11:58:54,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:58:54,837 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 232 [2018-07-24 11:58:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:58:54,962 INFO L225 Difference]: With dead ends: 71646 [2018-07-24 11:58:54,962 INFO L226 Difference]: Without dead ends: 34806 [2018-07-24 11:58:55,031 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 459 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:58:55,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34806 states. [2018-07-24 11:58:55,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34806 to 34692. [2018-07-24 11:58:55,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34692 states. [2018-07-24 11:58:55,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34692 states to 34692 states and 45182 transitions. [2018-07-24 11:58:55,676 INFO L78 Accepts]: Start accepts. Automaton has 34692 states and 45182 transitions. Word has length 232 [2018-07-24 11:58:55,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:58:55,677 INFO L471 AbstractCegarLoop]: Abstraction has 34692 states and 45182 transitions. [2018-07-24 11:58:55,677 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:58:55,677 INFO L276 IsEmpty]: Start isEmpty. Operand 34692 states and 45182 transitions. [2018-07-24 11:58:55,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-07-24 11:58:55,689 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:58:55,690 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:58:55,690 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 11:58:55,690 INFO L82 PathProgramCache]: Analyzing trace with hash 19515699, now seen corresponding path program 1 times [2018-07-24 11:58:55,691 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:58:55,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:55,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:55,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:55,692 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:58:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:56,281 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:58:56,282 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:56,282 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 11:58:56,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:56,299 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:56,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:56,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:57,523 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 51 proven. 54 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-07-24 11:58:57,523 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:57,781 WARN L169 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 24 [2018-07-24 11:58:58,534 WARN L169 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-07-24 11:58:58,940 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 51 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:58:58,960 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:58,961 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 11:58:58,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:58,977 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:59,226 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 47 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:58:59,618 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:59,829 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 145 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:58:59,832 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:58:59,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9, 8, 5] total 28 [2018-07-24 11:58:59,833 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:58:59,837 INFO L450 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-07-24 11:58:59,837 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-07-24 11:58:59,837 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2018-07-24 11:58:59,837 INFO L87 Difference]: Start difference. First operand 34692 states and 45182 transitions. Second operand 12 states. [2018-07-24 11:59:00,429 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-07-24 12:00:25,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:00:25,855 INFO L93 Difference]: Finished difference Result 279077 states and 484923 transitions. [2018-07-24 12:00:25,855 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2018-07-24 12:00:25,855 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 261 [2018-07-24 12:00:25,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:00:27,776 INFO L225 Difference]: With dead ends: 279077 [2018-07-24 12:00:27,776 INFO L226 Difference]: Without dead ends: 243478 [2018-07-24 12:00:28,237 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 1075 SyntacticMatches, 3 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3036 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1597, Invalid=8909, Unknown=0, NotChecked=0, Total=10506 [2018-07-24 12:00:28,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243478 states. [2018-07-24 12:00:34,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243478 to 238282. [2018-07-24 12:00:34,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238282 states. [2018-07-24 12:00:36,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238282 states to 238282 states and 326045 transitions. [2018-07-24 12:00:36,278 INFO L78 Accepts]: Start accepts. Automaton has 238282 states and 326045 transitions. Word has length 261 [2018-07-24 12:00:36,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:00:36,279 INFO L471 AbstractCegarLoop]: Abstraction has 238282 states and 326045 transitions. [2018-07-24 12:00:36,279 INFO L472 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-07-24 12:00:36,279 INFO L276 IsEmpty]: Start isEmpty. Operand 238282 states and 326045 transitions. [2018-07-24 12:00:36,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-07-24 12:00:36,307 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:00:36,307 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 12:00:36,308 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 12:00:36,308 INFO L82 PathProgramCache]: Analyzing trace with hash -359833229, now seen corresponding path program 1 times [2018-07-24 12:00:36,308 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:00:36,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:00:36,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:00:36,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:00:36,309 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:00:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:00:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:00:36,658 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:00:36,658 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 12:00:36,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:00:36,666 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:00:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:00:36,780 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:00:36,910 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:00:36,910 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:00:37,077 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:00:37,099 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:00:37,099 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 12:00:37,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:00:37,116 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:00:37,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:00:37,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:00:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:00:37,495 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:00:37,625 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:00:37,627 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:00:37,627 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-07-24 12:00:37,627 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:00:37,628 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:00:37,628 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:00:37,628 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-07-24 12:00:37,628 INFO L87 Difference]: Start difference. First operand 238282 states and 326045 transitions. Second operand 9 states. Received shutdown request... [2018-07-24 12:00:38,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 12:00:38,957 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:00:38,963 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:00:38,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:00:38 BoogieIcfgContainer [2018-07-24 12:00:38,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:00:38,964 INFO L168 Benchmark]: Toolchain (without parser) took 234496.00 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 223.2 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-07-24 12:00:38,965 INFO L168 Benchmark]: CDTParser took 0.23 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 12:00:38,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3052.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-24 12:00:38,966 INFO L168 Benchmark]: Boogie Procedure Inliner took 363.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:00:38,967 INFO L168 Benchmark]: Boogie Preprocessor took 1316.60 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 992.0 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:00:38,968 INFO L168 Benchmark]: RCFGBuilder took 18313.12 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 152.0 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 92.9 MB). Peak memory consumption was 746.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:00:38,969 INFO L168 Benchmark]: TraceAbstraction took 211445.42 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.2 GB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-07-24 12:00:38,974 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 3052.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 363.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1316.60 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 992.0 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18313.12 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 152.0 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 92.9 MB). Peak memory consumption was 746.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211445.42 ms. Allocated memory was 2.7 GB in the beginning and 3.7 GB in the end (delta: 1.0 GB). Free memory was 2.2 GB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 81). Cancelled while BasicCegarLoop was constructing difference of abstraction (238282states) and interpolant automaton (currently 15 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (1481 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 211.3s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 188.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4822 SDtfs, 43105 SDslu, 5002 SDs, 0 SdLazy, 82472 SolverSat, 17785 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 156.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3177 GetRequests, 3008 SyntacticMatches, 10 SemanticMatches, 159 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3167 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=238282occurred in iteration=7, 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: 10.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 5543 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 2837 NumberOfCodeBlocks, 2837 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4307 ConstructedInterpolants, 7 QuantifiedInterpolants, 4129917 SizeOfPredicates, 16 NumberOfNonLiveVariables, 2792 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 20 InterpolantComputations, 6 PerfectInterpolantSequences, 1814/2364 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label25_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-00-38-987.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label25_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-00-38-987.csv Completed graceful shutdown