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_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:14:31,337 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:14:31,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:14:31,352 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:14:31,352 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:14:31,353 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:14:31,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:14:31,356 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:14:31,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:14:31,359 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:14:31,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:14:31,360 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:14:31,361 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:14:31,361 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:14:31,363 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:14:31,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:14:31,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:14:31,366 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:14:31,368 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:14:31,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:14:31,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:14:31,372 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:14:31,378 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:14:31,379 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:14:31,379 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:14:31,380 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:14:31,381 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:14:31,382 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:14:31,382 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:14:31,384 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:14:31,384 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:14:31,385 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:14:31,385 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:14:31,385 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:14:31,386 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:14:31,387 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:14:31,387 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:14:31,403 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:14:31,403 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:14:31,406 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:14:31,406 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:14:31,406 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:14:31,406 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:14:31,407 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:14:31,407 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:14:31,407 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:14:31,407 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:14:31,407 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:14:31,408 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:14:31,412 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:14:31,412 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:14:31,413 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:14:31,413 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:14:31,413 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:14:31,413 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:14:31,413 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:14:31,414 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:14:31,414 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:14:31,414 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:14:31,414 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:14:31,414 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:14:31,415 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:14:31,415 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:14:31,415 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:14:31,417 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:14:31,417 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:14:31,417 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:14:31,418 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:14:31,418 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:14:31,418 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:14:31,472 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:14:31,486 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:14:31,492 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:14:31,494 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:14:31,494 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:14:31,495 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c [2018-07-24 14:14:31,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50265a783/6b4087205719410d88e8f81ccb120177/FLAG367e236fc [2018-07-24 14:14:32,351 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:14:32,352 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c [2018-07-24 14:14:32,390 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50265a783/6b4087205719410d88e8f81ccb120177/FLAG367e236fc [2018-07-24 14:14:32,412 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50265a783/6b4087205719410d88e8f81ccb120177 [2018-07-24 14:14:32,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:14:32,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:14:32,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:14:32,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:14:32,438 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:14:32,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:14:32" (1/1) ... [2018-07-24 14:14:32,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c2495d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:32, skipping insertion in model container [2018-07-24 14:14:32,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:14:32" (1/1) ... [2018-07-24 14:14:32,851 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:14:33,865 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:14:33,884 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:14:34,535 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:14:34,750 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34 WrapperNode [2018-07-24 14:14:34,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:14:34,751 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:14:34,751 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:14:34,751 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:14:34,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:34,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:14:35,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:14:35,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:14:35,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:14:35,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,682 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,808 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... [2018-07-24 14:14:35,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:14:35,984 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:14:35,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:14:35,984 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:14:35,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:14:36,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:14:36,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:14:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:14:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:14:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:14:36,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:14:36,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:14:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:14:36,061 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:14:36,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-07-24 14:14:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:14:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:14:36,062 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:14:36,062 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:14:49,148 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:14:49,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:14:49 BoogieIcfgContainer [2018-07-24 14:14:49,149 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:14:49,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:14:49,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:14:49,153 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:14:49,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:14:32" (1/3) ... [2018-07-24 14:14:49,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171322e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:14:49, skipping insertion in model container [2018-07-24 14:14:49,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:34" (2/3) ... [2018-07-24 14:14:49,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171322e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:14:49, skipping insertion in model container [2018-07-24 14:14:49,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:14:49" (3/3) ... [2018-07-24 14:14:49,157 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label56_true-unreach-call.c [2018-07-24 14:14:49,165 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:14:49,174 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:14:49,230 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:14:49,231 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:14:49,231 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:14:49,231 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:14:49,231 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:14:49,231 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:14:49,231 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:14:49,231 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:14:49,232 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:14:49,269 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 14:14:49,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-24 14:14:49,279 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:49,280 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:14:49,281 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:14:49,286 INFO L82 PathProgramCache]: Analyzing trace with hash -879322223, now seen corresponding path program 1 times [2018-07-24 14:14:49,289 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:49,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:49,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:49,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:49,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:49,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:49,798 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-07-24 14:14:49,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:14:49,820 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:14:49,820 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:14:49,820 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:14:49,826 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:14:49,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:14:49,842 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:14:49,845 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-07-24 14:15:03,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:03,003 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-07-24 14:15:03,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:15:03,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-07-24 14:15:03,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:03,061 INFO L225 Difference]: With dead ends: 3234 [2018-07-24 14:15:03,061 INFO L226 Difference]: Without dead ends: 2388 [2018-07-24 14:15:03,071 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:15:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-07-24 14:15:03,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-07-24 14:15:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-07-24 14:15:03,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-07-24 14:15:03,282 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 63 [2018-07-24 14:15:03,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:03,284 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-07-24 14:15:03,284 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:15:03,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-07-24 14:15:03,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-07-24 14:15:03,303 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:03,304 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:15:03,305 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:15:03,306 INFO L82 PathProgramCache]: Analyzing trace with hash -334404098, now seen corresponding path program 1 times [2018-07-24 14:15:03,306 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:03,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:03,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:03,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:03,308 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:03,942 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:15:03,942 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:15:03,942 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:15:03,943 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:03,946 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:15:03,946 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:15:03,946 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:15:03,947 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-07-24 14:15:22,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:22,166 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-07-24 14:15:22,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:15:22,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-07-24 14:15:22,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:22,221 INFO L225 Difference]: With dead ends: 9453 [2018-07-24 14:15:22,221 INFO L226 Difference]: Without dead ends: 7071 [2018-07-24 14:15:22,234 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:15:22,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-07-24 14:15:22,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-07-24 14:15:22,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-07-24 14:15:22,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10539 transitions. [2018-07-24 14:15:22,421 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10539 transitions. Word has length 163 [2018-07-24 14:15:22,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:22,422 INFO L471 AbstractCegarLoop]: Abstraction has 7023 states and 10539 transitions. [2018-07-24 14:15:22,422 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:15:22,422 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10539 transitions. [2018-07-24 14:15:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-07-24 14:15:22,429 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:22,429 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:15:22,430 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:15:22,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1214995706, now seen corresponding path program 1 times [2018-07-24 14:15:22,430 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:22,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:22,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:22,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:22,432 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:22,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:22,668 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 112 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:22,668 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:22,668 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:15:22,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:22,690 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:22,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:22,949 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:23,310 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 14:15:23,310 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:23,812 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 112 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:23,834 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:15:23,834 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 14:15:23,834 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:23,835 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:23,835 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:23,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:15:23,836 INFO L87 Difference]: Start difference. First operand 7023 states and 10539 transitions. Second operand 5 states. [2018-07-24 14:15:32,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:32,865 INFO L93 Difference]: Finished difference Result 19064 states and 30167 transitions. [2018-07-24 14:15:32,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:15:32,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-07-24 14:15:32,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:32,943 INFO L225 Difference]: With dead ends: 19064 [2018-07-24 14:15:32,943 INFO L226 Difference]: Without dead ends: 12047 [2018-07-24 14:15:32,967 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 428 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:15:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12047 states. [2018-07-24 14:15:33,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12047 to 11960. [2018-07-24 14:15:33,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11960 states. [2018-07-24 14:15:33,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11960 states to 11960 states and 17060 transitions. [2018-07-24 14:15:33,468 INFO L78 Accepts]: Start accepts. Automaton has 11960 states and 17060 transitions. Word has length 216 [2018-07-24 14:15:33,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:33,469 INFO L471 AbstractCegarLoop]: Abstraction has 11960 states and 17060 transitions. [2018-07-24 14:15:33,469 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:15:33,469 INFO L276 IsEmpty]: Start isEmpty. Operand 11960 states and 17060 transitions. [2018-07-24 14:15:33,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-07-24 14:15:33,476 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:33,476 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:15:33,477 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:15:33,477 INFO L82 PathProgramCache]: Analyzing trace with hash -982471932, now seen corresponding path program 1 times [2018-07-24 14:15:33,477 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:33,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:33,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:33,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:33,478 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:33,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:33,874 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 112 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:33,875 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:33,875 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 14:15:33,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:33,894 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:34,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:34,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 14:15:34,436 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:34,824 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 112 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:34,854 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:15:34,855 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-07-24 14:15:34,855 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:34,856 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:34,856 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:34,856 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:15:34,857 INFO L87 Difference]: Start difference. First operand 11960 states and 17060 transitions. Second operand 5 states. [2018-07-24 14:15:45,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:45,827 INFO L93 Difference]: Finished difference Result 38648 states and 58961 transitions. [2018-07-24 14:15:45,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:15:45,828 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2018-07-24 14:15:45,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:45,972 INFO L225 Difference]: With dead ends: 38648 [2018-07-24 14:15:45,972 INFO L226 Difference]: Without dead ends: 26694 [2018-07-24 14:15:46,048 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 475 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:15:46,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26694 states. [2018-07-24 14:15:46,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26694 to 26502. [2018-07-24 14:15:46,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26502 states. [2018-07-24 14:15:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26502 states to 26502 states and 38853 transitions. [2018-07-24 14:15:46,686 INFO L78 Accepts]: Start accepts. Automaton has 26502 states and 38853 transitions. Word has length 240 [2018-07-24 14:15:46,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:46,686 INFO L471 AbstractCegarLoop]: Abstraction has 26502 states and 38853 transitions. [2018-07-24 14:15:46,686 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:15:46,686 INFO L276 IsEmpty]: Start isEmpty. Operand 26502 states and 38853 transitions. [2018-07-24 14:15:46,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-07-24 14:15:46,700 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:46,700 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:15:46,701 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:15:46,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1844811972, now seen corresponding path program 1 times [2018-07-24 14:15:46,701 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:46,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:46,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:46,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:46,704 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:47,078 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 112 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:47,079 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:47,079 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:15:47,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:47,095 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:47,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:47,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 14:15:47,522 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 112 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:48,467 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:15:48,468 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 14:15:48,468 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:48,469 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:48,469 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:48,469 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:15:48,470 INFO L87 Difference]: Start difference. First operand 26502 states and 38853 transitions. Second operand 5 states. [2018-07-24 14:16:00,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:00,150 INFO L93 Difference]: Finished difference Result 79507 states and 123290 transitions. [2018-07-24 14:16:00,151 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:16:00,151 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2018-07-24 14:16:00,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:00,394 INFO L225 Difference]: With dead ends: 79507 [2018-07-24 14:16:00,394 INFO L226 Difference]: Without dead ends: 53011 [2018-07-24 14:16:00,471 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:16:00,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53011 states. [2018-07-24 14:16:01,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53011 to 52736. [2018-07-24 14:16:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52736 states. [2018-07-24 14:16:01,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52736 states to 52736 states and 72779 transitions. [2018-07-24 14:16:01,541 INFO L78 Accepts]: Start accepts. Automaton has 52736 states and 72779 transitions. Word has length 244 [2018-07-24 14:16:01,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:01,541 INFO L471 AbstractCegarLoop]: Abstraction has 52736 states and 72779 transitions. [2018-07-24 14:16:01,541 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:16:01,541 INFO L276 IsEmpty]: Start isEmpty. Operand 52736 states and 72779 transitions. [2018-07-24 14:16:01,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-07-24 14:16:01,576 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:01,576 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 14:16:01,576 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:01,577 INFO L82 PathProgramCache]: Analyzing trace with hash -857448372, now seen corresponding path program 1 times [2018-07-24 14:16:01,577 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:01,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:01,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:01,578 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:01,578 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:16:02,290 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:02,290 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:16:02,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:02,304 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:02,442 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:02,619 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:16:02,619 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:02,820 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:16:02,841 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:02,842 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:16:02,863 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:02,863 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:03,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:03,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:03,273 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:16:03,274 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:16:03,504 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:16:03,505 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 14:16:03,505 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:16:03,506 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:16:03,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:16:03,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:16:03,506 INFO L87 Difference]: Start difference. First operand 52736 states and 72779 transitions. Second operand 9 states. [2018-07-24 14:16:21,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:21,798 INFO L93 Difference]: Finished difference Result 148212 states and 233359 transitions. [2018-07-24 14:16:21,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 14:16:21,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 381 [2018-07-24 14:16:21,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:22,210 INFO L225 Difference]: With dead ends: 148212 [2018-07-24 14:16:22,211 INFO L226 Difference]: Without dead ends: 86955 [2018-07-24 14:16:22,474 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1542 GetRequests, 1520 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:16:22,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86955 states. [2018-07-24 14:16:24,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86955 to 84886. [2018-07-24 14:16:24,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84886 states. [2018-07-24 14:16:24,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84886 states to 84886 states and 116814 transitions. [2018-07-24 14:16:24,396 INFO L78 Accepts]: Start accepts. Automaton has 84886 states and 116814 transitions. Word has length 381 [2018-07-24 14:16:24,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:24,397 INFO L471 AbstractCegarLoop]: Abstraction has 84886 states and 116814 transitions. [2018-07-24 14:16:24,397 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:16:24,397 INFO L276 IsEmpty]: Start isEmpty. Operand 84886 states and 116814 transitions. [2018-07-24 14:16:24,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2018-07-24 14:16:24,494 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:24,494 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:16:24,494 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:24,495 INFO L82 PathProgramCache]: Analyzing trace with hash 1420444736, now seen corresponding path program 1 times [2018-07-24 14:16:24,495 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:24,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:24,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:24,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:24,496 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:24,950 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:16:26,418 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 224 proven. 273 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-07-24 14:16:26,418 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:26,418 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:16:26,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:26,426 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:26,594 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:26,863 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-07-24 14:16:26,863 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-07-24 14:16:27,042 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:16:27,043 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-07-24 14:16:27,043 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:27,044 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:16:27,044 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:16:27,044 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:16:27,044 INFO L87 Difference]: Start difference. First operand 84886 states and 116814 transitions. Second operand 3 states. [2018-07-24 14:16:34,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:34,161 INFO L93 Difference]: Finished difference Result 197827 states and 280237 transitions. [2018-07-24 14:16:34,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:16:34,162 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 482 [2018-07-24 14:16:34,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:34,601 INFO L225 Difference]: With dead ends: 197827 [2018-07-24 14:16:34,601 INFO L226 Difference]: Without dead ends: 112952 [2018-07-24 14:16:34,818 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 965 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:16:34,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112952 states. [2018-07-24 14:16:36,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112952 to 104434. [2018-07-24 14:16:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104434 states. [2018-07-24 14:16:36,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104434 states to 104434 states and 136663 transitions. [2018-07-24 14:16:36,850 INFO L78 Accepts]: Start accepts. Automaton has 104434 states and 136663 transitions. Word has length 482 [2018-07-24 14:16:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:36,851 INFO L471 AbstractCegarLoop]: Abstraction has 104434 states and 136663 transitions. [2018-07-24 14:16:36,851 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:16:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 104434 states and 136663 transitions. [2018-07-24 14:16:36,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2018-07-24 14:16:36,919 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:36,920 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:16:36,920 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:36,921 INFO L82 PathProgramCache]: Analyzing trace with hash -734738948, now seen corresponding path program 1 times [2018-07-24 14:16:36,921 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:36,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:36,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:36,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:36,922 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:37,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:37,570 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 302 proven. 54 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2018-07-24 14:16:37,570 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:37,571 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:16:37,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:37,581 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:37,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2018-07-24 14:16:38,519 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:38,814 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2018-07-24 14:16:38,834 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:16:38,835 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-07-24 14:16:38,835 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:38,835 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:16:38,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:16:38,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:16:38,836 INFO L87 Difference]: Start difference. First operand 104434 states and 136663 transitions. Second operand 3 states. [2018-07-24 14:16:45,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:45,985 INFO L93 Difference]: Finished difference Result 248856 states and 330262 transitions. [2018-07-24 14:16:45,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:16:45,985 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 485 [2018-07-24 14:16:45,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:46,358 INFO L225 Difference]: With dead ends: 248856 [2018-07-24 14:16:46,358 INFO L226 Difference]: Without dead ends: 125634 [2018-07-24 14:16:46,621 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 970 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:16:46,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125634 states. [2018-07-24 14:16:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125634 to 125607. [2018-07-24 14:16:49,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125607 states. [2018-07-24 14:16:49,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125607 states to 125607 states and 156835 transitions. [2018-07-24 14:16:49,315 INFO L78 Accepts]: Start accepts. Automaton has 125607 states and 156835 transitions. Word has length 485 [2018-07-24 14:16:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:49,316 INFO L471 AbstractCegarLoop]: Abstraction has 125607 states and 156835 transitions. [2018-07-24 14:16:49,316 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:16:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 125607 states and 156835 transitions. [2018-07-24 14:16:49,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2018-07-24 14:16:49,386 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:49,387 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:16:49,387 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:49,388 INFO L82 PathProgramCache]: Analyzing trace with hash 25633064, now seen corresponding path program 1 times [2018-07-24 14:16:49,388 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:49,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:49,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:49,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:49,389 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:49,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:49,851 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 320 proven. 154 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-07-24 14:16:49,851 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:49,851 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:16:49,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:49,862 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:50,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:50,266 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 14:16:50,267 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:51,348 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 320 proven. 154 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-07-24 14:16:51,369 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:51,370 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:16:51,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:51,386 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:51,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:52,080 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-07-24 14:16:52,080 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 320 proven. 154 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-07-24 14:16:52,787 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:16:52,787 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 14:16:52,787 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:16:52,788 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:16:52,788 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:16:52,789 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:16:52,789 INFO L87 Difference]: Start difference. First operand 125607 states and 156835 transitions. Second operand 9 states. [2018-07-24 14:17:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:10,740 INFO L93 Difference]: Finished difference Result 296550 states and 386303 transitions. [2018-07-24 14:17:10,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-07-24 14:17:10,740 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 535 [2018-07-24 14:17:10,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:11,521 INFO L225 Difference]: With dead ends: 296550 [2018-07-24 14:17:11,521 INFO L226 Difference]: Without dead ends: 171717 [2018-07-24 14:17:12,829 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2142 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2018-07-24 14:17:12,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171717 states. [2018-07-24 14:17:15,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171717 to 168347. [2018-07-24 14:17:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168347 states. [2018-07-24 14:17:17,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168347 states to 168347 states and 204448 transitions. [2018-07-24 14:17:17,157 INFO L78 Accepts]: Start accepts. Automaton has 168347 states and 204448 transitions. Word has length 535 [2018-07-24 14:17:17,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:17,158 INFO L471 AbstractCegarLoop]: Abstraction has 168347 states and 204448 transitions. [2018-07-24 14:17:17,158 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:17:17,158 INFO L276 IsEmpty]: Start isEmpty. Operand 168347 states and 204448 transitions. [2018-07-24 14:17:17,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-07-24 14:17:17,218 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:17,219 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:17,219 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:17,219 INFO L82 PathProgramCache]: Analyzing trace with hash 566640255, now seen corresponding path program 1 times [2018-07-24 14:17:17,220 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:17,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:17,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:17,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:17,221 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 318 proven. 231 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:17:18,380 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:18,380 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:17:18,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:18,388 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:18,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:19,951 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-24 14:17:19,952 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-07-24 14:17:20,233 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:17:20,233 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 13 [2018-07-24 14:17:20,233 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:20,234 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:17:20,234 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:17:20,234 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:17:20,235 INFO L87 Difference]: Start difference. First operand 168347 states and 204448 transitions. Second operand 3 states. [2018-07-24 14:17:27,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:27,539 INFO L93 Difference]: Finished difference Result 326981 states and 398593 transitions. [2018-07-24 14:17:27,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:17:27,540 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 548 [2018-07-24 14:17:27,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:28,007 INFO L225 Difference]: With dead ends: 326981 [2018-07-24 14:17:28,007 INFO L226 Difference]: Without dead ends: 162012 [2018-07-24 14:17:28,293 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1109 GetRequests, 1096 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:17:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162012 states. [2018-07-24 14:17:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162012 to 158896. [2018-07-24 14:17:35,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158896 states. [2018-07-24 14:17:36,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158896 states to 158896 states and 188159 transitions. [2018-07-24 14:17:36,147 INFO L78 Accepts]: Start accepts. Automaton has 158896 states and 188159 transitions. Word has length 548 [2018-07-24 14:17:36,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:36,148 INFO L471 AbstractCegarLoop]: Abstraction has 158896 states and 188159 transitions. [2018-07-24 14:17:36,148 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:36,149 INFO L276 IsEmpty]: Start isEmpty. Operand 158896 states and 188159 transitions. [2018-07-24 14:17:36,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2018-07-24 14:17:36,208 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:36,208 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:36,209 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:36,209 INFO L82 PathProgramCache]: Analyzing trace with hash 712594479, now seen corresponding path program 1 times [2018-07-24 14:17:36,209 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:36,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:36,210 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:36,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:36,210 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:36,621 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-07-24 14:17:36,621 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:36,621 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:17:36,621 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:36,622 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:17:36,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:17:36,622 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:36,622 INFO L87 Difference]: Start difference. First operand 158896 states and 188159 transitions. Second operand 3 states. [2018-07-24 14:17:44,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:44,276 INFO L93 Difference]: Finished difference Result 341196 states and 412392 transitions. [2018-07-24 14:17:44,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:17:44,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 599 [2018-07-24 14:17:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:44,280 INFO L225 Difference]: With dead ends: 341196 [2018-07-24 14:17:44,280 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 14:17:44,634 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 14:17:44,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 14:17:44,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 14:17:44,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 14:17:44,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 599 [2018-07-24 14:17:44,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:44,636 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 14:17:44,636 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:44,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 14:17:44,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 14:17:44,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 14:17:46,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,480 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,113 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,654 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:47,910 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,954 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,012 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,578 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,118 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,162 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,826 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:50,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,823 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:51,940 WARN L169 SmtUtils]: Spent 5.63 s on a formula simplification. DAG size of input: 1232 DAG size of output: 702 [2018-07-24 14:17:52,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:52,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:52,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:52,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:52,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:52,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:52,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,156 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,336 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,534 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,745 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:53,818 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,265 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,617 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,762 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:54,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,154 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:55,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,451 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,486 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,531 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:56,757 WARN L169 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 1232 DAG size of output: 702 [2018-07-24 14:18:03,868 WARN L169 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 637 DAG size of output: 90 Received shutdown request... [2018-07-24 14:18:09,759 WARN L177 SmtUtils]: Removed 2 from assertion stack [2018-07-24 14:18:09,759 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 14:18:09,761 INFO L168 Benchmark]: Toolchain (without parser) took 217333.48 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-07-24 14:18:09,762 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:18:09,762 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2319.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:18:09,763 INFO L168 Benchmark]: Boogie Procedure Inliner took 280.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:18:09,764 INFO L168 Benchmark]: Boogie Preprocessor took 951.54 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 936.9 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 127.9 MB. Max. memory is 7.1 GB. [2018-07-24 14:18:09,765 INFO L168 Benchmark]: RCFGBuilder took 13165.50 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 139.5 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -105.4 MB). Peak memory consumption was 723.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:18:09,766 INFO L168 Benchmark]: TraceAbstraction took 200610.12 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.4 GB in the beginning and 3.4 GB in the end (delta: -982.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-24 14:18:09,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2319.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 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 280.56 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 951.54 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 936.9 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 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13165.50 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 139.5 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -105.4 MB). Peak memory consumption was 723.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 200610.12 ms. Allocated memory was 2.6 GB in the beginning and 4.7 GB in the end (delta: 2.1 GB). Free memory was 2.4 GB in the beginning and 3.4 GB in the end (delta: -982.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 180]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 687. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label56_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-18-09-786.csv Completed graceful shutdown