java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label57_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:40:35,398 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:40:35,402 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:40:35,417 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:40:35,417 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:40:35,419 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:40:35,420 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:40:35,422 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:40:35,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:40:35,425 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:40:35,426 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:40:35,426 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:40:35,427 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:40:35,428 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:40:35,429 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:40:35,430 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:40:35,431 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:40:35,433 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:40:35,435 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:40:35,437 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:40:35,438 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:40:35,439 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:40:35,442 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:40:35,442 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:40:35,443 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:40:35,444 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:40:35,445 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:40:35,446 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:40:35,446 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:40:35,448 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:40:35,448 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:40:35,449 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:40:35,449 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:40:35,449 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:40:35,450 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:40:35,451 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:40:35,451 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 [2018-09-10 10:40:35,467 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:40:35,467 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:40:35,468 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:40:35,468 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:40:35,468 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:40:35,469 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:40:35,469 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:40:35,469 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:40:35,469 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:40:35,469 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:40:35,470 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:40:35,470 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:40:35,471 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:40:35,471 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:40:35,471 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:40:35,471 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:40:35,471 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:40:35,472 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:40:35,472 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:40:35,472 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:40:35,472 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:40:35,472 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:40:35,473 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:40:35,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:40:35,473 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:40:35,473 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:40:35,473 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:40:35,474 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:40:35,474 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:40:35,474 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:40:35,474 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:40:35,474 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:40:35,475 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:40:35,519 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:40:35,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:40:35,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:40:35,542 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:40:35,542 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:40:35,543 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label57_true-unreach-call_false-termination.c [2018-09-10 10:40:35,915 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7dcd568d/e1f77d0d387b4a9e8a5c635622221034/FLAG59e8781d5 [2018-09-10 10:40:36,400 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:40:36,403 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label57_true-unreach-call_false-termination.c [2018-09-10 10:40:36,450 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7dcd568d/e1f77d0d387b4a9e8a5c635622221034/FLAG59e8781d5 [2018-09-10 10:40:36,474 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7dcd568d/e1f77d0d387b4a9e8a5c635622221034 [2018-09-10 10:40:36,489 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:40:36,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:40:36,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:40:36,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:40:36,507 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:40:36,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:40:36" (1/1) ... [2018-09-10 10:40:36,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45bfc41d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:36, skipping insertion in model container [2018-09-10 10:40:36,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:40:36" (1/1) ... [2018-09-10 10:40:36,894 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:40:37,924 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:40:37,942 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:40:38,660 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:40:38,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38 WrapperNode [2018-09-10 10:40:38,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:40:38,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:40:38,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:40:38,801 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:40:38,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:38,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:38,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:40:38,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:40:38,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:40:38,945 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:40:39,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,470 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (1/1) ... [2018-09-10 10:40:39,566 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:40:39,567 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:40:39,567 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:40:39,567 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:40:39,568 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (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 [2018-09-10 10:40:39,637 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-10 10:40:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-09-10 10:40:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:40:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:40:39,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:40:39,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:40:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:40:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:40:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output3 [2018-09-10 10:40:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output3 [2018-09-10 10:40:39,639 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output2 [2018-09-10 10:40:39,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output2 [2018-09-10 10:40:39,640 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4 [2018-09-10 10:40:39,640 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4 [2018-09-10 10:40:50,956 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:40:50,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:40:50 BoogieIcfgContainer [2018-09-10 10:40:50,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:40:50,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:40:50,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:40:50,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:40:50,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:40:36" (1/3) ... [2018-09-10 10:40:50,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315f91ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:40:50, skipping insertion in model container [2018-09-10 10:40:50,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:38" (2/3) ... [2018-09-10 10:40:50,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315f91ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:40:50, skipping insertion in model container [2018-09-10 10:40:50,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:40:50" (3/3) ... [2018-09-10 10:40:50,965 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label57_true-unreach-call_false-termination.c [2018-09-10 10:40:50,975 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:40:50,989 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:40:51,072 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:40:51,073 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:40:51,073 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:40:51,073 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:40:51,074 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:40:51,074 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:40:51,074 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:40:51,074 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:40:51,074 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:40:51,126 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-10 10:40:51,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 808 [2018-09-10 10:40:51,191 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:40:51,193 INFO L376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:40:51,198 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:40:51,204 INFO L82 PathProgramCache]: Analyzing trace with hash -2133041135, now seen corresponding path program 1 times [2018-09-10 10:40:51,207 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:40:51,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:51,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:40:51,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:51,262 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:40:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:40:53,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:40:53,951 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:40:53,951 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 10:40:53,952 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:40:53,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 10:40:53,977 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 10:40:53,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 10:40:53,980 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 4 states. [2018-09-10 10:41:04,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:04,632 INFO L93 Difference]: Finished difference Result 3486 states and 6774 transitions. [2018-09-10 10:41:04,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 10:41:04,637 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 807 [2018-09-10 10:41:04,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:04,690 INFO L225 Difference]: With dead ends: 3486 [2018-09-10 10:41:04,690 INFO L226 Difference]: Without dead ends: 2573 [2018-09-10 10:41:04,702 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 10:41:04,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2018-09-10 10:41:04,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2573. [2018-09-10 10:41:04,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2573 states. [2018-09-10 10:41:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 4899 transitions. [2018-09-10 10:41:04,891 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 4899 transitions. Word has length 807 [2018-09-10 10:41:04,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:04,894 INFO L480 AbstractCegarLoop]: Abstraction has 2573 states and 4899 transitions. [2018-09-10 10:41:04,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 10:41:04,895 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 4899 transitions. [2018-09-10 10:41:04,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2018-09-10 10:41:04,932 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:04,933 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:41:04,933 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:41:04,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1832728262, now seen corresponding path program 1 times [2018-09-10 10:41:04,935 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:04,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:04,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:04,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:04,937 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:05,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:05,317 WARN L175 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:41:05,911 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:05,911 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:41:05,912 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 10:41:05,912 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:05,915 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:41:05,916 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:41:05,916 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:41:05,916 INFO L87 Difference]: Start difference. First operand 2573 states and 4899 transitions. Second operand 6 states. [2018-09-10 10:41:15,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:15,264 INFO L93 Difference]: Finished difference Result 6136 states and 11680 transitions. [2018-09-10 10:41:15,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:41:15,273 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 881 [2018-09-10 10:41:15,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:15,301 INFO L225 Difference]: With dead ends: 6136 [2018-09-10 10:41:15,301 INFO L226 Difference]: Without dead ends: 3569 [2018-09-10 10:41:15,309 INFO L604 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 [2018-09-10 10:41:15,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2018-09-10 10:41:15,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3518. [2018-09-10 10:41:15,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3518 states. [2018-09-10 10:41:15,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3518 states to 3518 states and 6021 transitions. [2018-09-10 10:41:15,420 INFO L78 Accepts]: Start accepts. Automaton has 3518 states and 6021 transitions. Word has length 881 [2018-09-10 10:41:15,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:15,421 INFO L480 AbstractCegarLoop]: Abstraction has 3518 states and 6021 transitions. [2018-09-10 10:41:15,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:41:15,421 INFO L276 IsEmpty]: Start isEmpty. Operand 3518 states and 6021 transitions. [2018-09-10 10:41:15,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2018-09-10 10:41:15,441 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:15,442 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:41:15,442 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:41:15,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1229176823, now seen corresponding path program 1 times [2018-09-10 10:41:15,443 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:15,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:15,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:15,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:15,445 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:15,812 WARN L175 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-10 10:41:16,153 WARN L175 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-10 10:41:16,401 WARN L175 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-10 10:41:17,077 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 89 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:17,077 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:17,078 INFO L197 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 [2018-09-10 10:41:17,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:17,089 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:17,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:17,533 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:18,346 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:18,347 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:19,242 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:19,265 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:19,265 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:41:19,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:19,288 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:20,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:20,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:21,381 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:21,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 106 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:22,044 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:41:22,045 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 18 [2018-09-10 10:41:22,045 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:41:22,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-10 10:41:22,049 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-10 10:41:22,049 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-10 10:41:22,050 INFO L87 Difference]: Start difference. First operand 3518 states and 6021 transitions. Second operand 14 states. [2018-09-10 10:42:13,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:13,834 INFO L93 Difference]: Finished difference Result 28609 states and 57131 transitions. [2018-09-10 10:42:13,836 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2018-09-10 10:42:13,836 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 901 [2018-09-10 10:42:13,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:14,014 INFO L225 Difference]: With dead ends: 28609 [2018-09-10 10:42:14,014 INFO L226 Difference]: Without dead ends: 25097 [2018-09-10 10:42:14,046 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3715 GetRequests, 3641 SyntacticMatches, 7 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=894, Invalid=3798, Unknown=0, NotChecked=0, Total=4692 [2018-09-10 10:42:14,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25097 states. [2018-09-10 10:42:14,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25097 to 24528. [2018-09-10 10:42:14,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24528 states. [2018-09-10 10:42:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24528 states to 24528 states and 41002 transitions. [2018-09-10 10:42:14,930 INFO L78 Accepts]: Start accepts. Automaton has 24528 states and 41002 transitions. Word has length 901 [2018-09-10 10:42:14,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:14,931 INFO L480 AbstractCegarLoop]: Abstraction has 24528 states and 41002 transitions. [2018-09-10 10:42:14,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-10 10:42:14,931 INFO L276 IsEmpty]: Start isEmpty. Operand 24528 states and 41002 transitions. [2018-09-10 10:42:15,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2018-09-10 10:42:15,044 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:15,045 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:15,045 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:42:15,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1594286497, now seen corresponding path program 1 times [2018-09-10 10:42:15,046 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:15,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:15,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:15,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:15,048 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:15,405 WARN L175 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:42:16,121 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:42:16,121 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:16,121 INFO L197 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 [2018-09-10 10:42:16,140 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:16,140 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:16,551 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 10:42:17,184 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:17,939 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 97 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:42:17,963 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:42:17,964 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 10:42:17,964 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:42:17,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:42:17,965 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:42:17,965 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-10 10:42:17,965 INFO L87 Difference]: Start difference. First operand 24528 states and 41002 transitions. Second operand 5 states. [2018-09-10 10:42:26,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:26,855 INFO L93 Difference]: Finished difference Result 74440 states and 132836 transitions. [2018-09-10 10:42:26,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 10:42:26,858 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 910 [2018-09-10 10:42:26,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:27,134 INFO L225 Difference]: With dead ends: 74440 [2018-09-10 10:42:27,134 INFO L226 Difference]: Without dead ends: 49923 [2018-09-10 10:42:27,246 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1829 GetRequests, 1814 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:42:27,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49923 states. [2018-09-10 10:42:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49923 to 49611. [2018-09-10 10:42:29,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49611 states. [2018-09-10 10:42:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49611 states to 49611 states and 77389 transitions. [2018-09-10 10:42:29,407 INFO L78 Accepts]: Start accepts. Automaton has 49611 states and 77389 transitions. Word has length 910 [2018-09-10 10:42:29,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:29,407 INFO L480 AbstractCegarLoop]: Abstraction has 49611 states and 77389 transitions. [2018-09-10 10:42:29,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:42:29,408 INFO L276 IsEmpty]: Start isEmpty. Operand 49611 states and 77389 transitions. [2018-09-10 10:42:29,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 934 [2018-09-10 10:42:29,579 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:29,580 INFO L376 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:29,580 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:42:29,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1218841122, now seen corresponding path program 1 times [2018-09-10 10:42:29,581 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:29,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:29,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:29,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:29,582 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:29,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:31,799 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 117 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:42:31,800 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:31,800 INFO L197 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 [2018-09-10 10:42:31,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:31,809 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:32,233 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:33,214 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:42:33,214 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:33,916 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:42:33,942 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:42:33,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-10 10:42:33,942 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:42:33,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:42:33,944 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:42:33,944 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:42:33,945 INFO L87 Difference]: Start difference. First operand 49611 states and 77389 transitions. Second operand 3 states. [2018-09-10 10:42:39,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:39,470 INFO L93 Difference]: Finished difference Result 98023 states and 153859 transitions. [2018-09-10 10:42:39,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:42:39,475 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 933 [2018-09-10 10:42:39,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:39,649 INFO L225 Difference]: With dead ends: 98023 [2018-09-10 10:42:39,649 INFO L226 Difference]: Without dead ends: 48423 [2018-09-10 10:42:39,743 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1878 GetRequests, 1866 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:42:39,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48423 states. [2018-09-10 10:42:40,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48423 to 48421. [2018-09-10 10:42:40,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48421 states. [2018-09-10 10:42:40,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48421 states to 48421 states and 69710 transitions. [2018-09-10 10:42:40,715 INFO L78 Accepts]: Start accepts. Automaton has 48421 states and 69710 transitions. Word has length 933 [2018-09-10 10:42:40,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:40,719 INFO L480 AbstractCegarLoop]: Abstraction has 48421 states and 69710 transitions. [2018-09-10 10:42:40,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:42:40,719 INFO L276 IsEmpty]: Start isEmpty. Operand 48421 states and 69710 transitions. [2018-09-10 10:42:40,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2018-09-10 10:42:40,859 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:40,860 INFO L376 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:40,861 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:42:40,861 INFO L82 PathProgramCache]: Analyzing trace with hash -583657016, now seen corresponding path program 1 times [2018-09-10 10:42:40,861 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:40,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:40,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:40,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:40,863 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:40,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:41,586 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 166 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:42:41,586 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:41,586 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:42:41,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:41,594 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:42,002 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:42,963 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-10 10:42:42,964 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:43,500 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-10 10:42:43,522 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:43,522 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:42:43,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:43,539 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:44,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:45,378 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-10 10:42:45,379 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:45,844 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-10 10:42:45,847 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:42:45,848 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:42:45,848 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:42:45,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:42:45,851 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:42:45,852 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:42:45,852 INFO L87 Difference]: Start difference. First operand 48421 states and 69710 transitions. Second operand 9 states. [2018-09-10 10:42:46,902 WARN L175 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-10 10:43:05,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:43:05,568 INFO L93 Difference]: Finished difference Result 183059 states and 307320 transitions. [2018-09-10 10:43:05,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-10 10:43:05,569 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 963 [2018-09-10 10:43:05,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:43:06,383 INFO L225 Difference]: With dead ends: 183059 [2018-09-10 10:43:06,383 INFO L226 Difference]: Without dead ends: 134649 [2018-09-10 10:43:06,562 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3900 GetRequests, 3860 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=320, Invalid=1240, Unknown=0, NotChecked=0, Total=1560 [2018-09-10 10:43:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134649 states. [2018-09-10 10:43:11,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134649 to 132845. [2018-09-10 10:43:11,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132845 states. [2018-09-10 10:43:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132845 states to 132845 states and 179177 transitions. [2018-09-10 10:43:11,372 INFO L78 Accepts]: Start accepts. Automaton has 132845 states and 179177 transitions. Word has length 963 [2018-09-10 10:43:11,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:43:11,373 INFO L480 AbstractCegarLoop]: Abstraction has 132845 states and 179177 transitions. [2018-09-10 10:43:11,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:43:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 132845 states and 179177 transitions. [2018-09-10 10:43:11,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2018-09-10 10:43:11,614 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:43:11,614 INFO L376 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:43:11,615 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:43:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash -463118845, now seen corresponding path program 1 times [2018-09-10 10:43:11,615 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:43:11,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:11,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:11,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:11,617 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:43:11,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:14,307 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 238 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:43:14,308 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:43:14,308 INFO L197 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 [2018-09-10 10:43:14,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:14,316 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:43:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:14,786 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:43:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 10:43:16,197 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:43:17,163 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 10:43:17,185 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:43:17,186 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-10 10:43:17,186 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:43:17,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:43:17,187 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:43:17,187 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:43:17,188 INFO L87 Difference]: Start difference. First operand 132845 states and 179177 transitions. Second operand 3 states. [2018-09-10 10:43:25,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:43:25,037 INFO L93 Difference]: Finished difference Result 296731 states and 401238 transitions. [2018-09-10 10:43:25,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:43:25,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1056 [2018-09-10 10:43:25,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:43:25,614 INFO L225 Difference]: With dead ends: 296731 [2018-09-10 10:43:25,615 INFO L226 Difference]: Without dead ends: 163897 [2018-09-10 10:43:25,875 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2125 GetRequests, 2113 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:43:26,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163897 states. [2018-09-10 10:43:28,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163897 to 158023. [2018-09-10 10:43:28,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158023 states. [2018-09-10 10:43:29,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158023 states to 158023 states and 201331 transitions. [2018-09-10 10:43:29,154 INFO L78 Accepts]: Start accepts. Automaton has 158023 states and 201331 transitions. Word has length 1056 [2018-09-10 10:43:29,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:43:29,154 INFO L480 AbstractCegarLoop]: Abstraction has 158023 states and 201331 transitions. [2018-09-10 10:43:29,155 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:43:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand 158023 states and 201331 transitions. [2018-09-10 10:43:29,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1169 [2018-09-10 10:43:29,386 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:43:29,387 INFO L376 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, 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, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:43:29,387 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:43:29,387 INFO L82 PathProgramCache]: Analyzing trace with hash -1978414519, now seen corresponding path program 1 times [2018-09-10 10:43:29,387 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:43:29,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:29,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:29,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:29,389 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:43:29,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:30,688 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 349 proven. 138 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2018-09-10 10:43:30,689 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:43:30,689 INFO L197 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 [2018-09-10 10:43:30,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:30,697 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:43:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:31,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:43:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 550 trivial. 0 not checked. [2018-09-10 10:43:32,529 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:43:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 349 proven. 138 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2018-09-10 10:43:33,168 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:43:33,168 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-10 10:43:33,168 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:43:33,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:43:33,170 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:43:33,170 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 10:43:33,170 INFO L87 Difference]: Start difference. First operand 158023 states and 201331 transitions. Second operand 5 states. [2018-09-10 10:43:41,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:43:41,369 INFO L93 Difference]: Finished difference Result 311078 states and 404535 transitions. [2018-09-10 10:43:41,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:43:41,370 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1168 [2018-09-10 10:43:41,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:43:41,793 INFO L225 Difference]: With dead ends: 311078 [2018-09-10 10:43:41,794 INFO L226 Difference]: Without dead ends: 153066 [2018-09-10 10:43:41,993 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2345 GetRequests, 2330 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:43:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153066 states. [2018-09-10 10:43:44,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153066 to 152334. [2018-09-10 10:43:44,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152334 states. [2018-09-10 10:43:44,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152334 states to 152334 states and 183442 transitions. [2018-09-10 10:43:44,591 INFO L78 Accepts]: Start accepts. Automaton has 152334 states and 183442 transitions. Word has length 1168 [2018-09-10 10:43:44,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:43:44,592 INFO L480 AbstractCegarLoop]: Abstraction has 152334 states and 183442 transitions. [2018-09-10 10:43:44,592 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:43:44,592 INFO L276 IsEmpty]: Start isEmpty. Operand 152334 states and 183442 transitions. [2018-09-10 10:43:44,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1232 [2018-09-10 10:43:44,739 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:43:44,740 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:43:44,740 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:43:44,741 INFO L82 PathProgramCache]: Analyzing trace with hash 2065892042, now seen corresponding path program 1 times [2018-09-10 10:43:44,741 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:43:44,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:44,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:44,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:44,742 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:43:44,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:50,410 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 442 proven. 175 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2018-09-10 10:43:50,410 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:43:50,411 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:43:50,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:50,422 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:43:50,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:50,944 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:43:51,643 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 663 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-09-10 10:43:51,643 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:43:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 663 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-09-10 10:43:52,415 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:43:52,415 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:43:52,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:52,432 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:43:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:53,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:43:54,289 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 665 proven. 6 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-09-10 10:43:54,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:43:55,253 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 667 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-09-10 10:43:55,257 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:43:55,259 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:43:55,259 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:43:55,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:43:55,261 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:43:55,261 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:43:55,261 INFO L87 Difference]: Start difference. First operand 152334 states and 183442 transitions. Second operand 9 states. [2018-09-10 10:44:16,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:44:16,413 INFO L93 Difference]: Finished difference Result 420631 states and 537488 transitions. [2018-09-10 10:44:16,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-10 10:44:16,413 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1231 [2018-09-10 10:44:16,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. Received shutdown request... [2018-09-10 10:44:17,937 INFO L225 Difference]: With dead ends: 420631 [2018-09-10 10:44:17,937 INFO L226 Difference]: Without dead ends: 268308 [2018-09-10 10:44:18,146 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4982 GetRequests, 4939 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2018-09-10 10:44:18,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268308 states. [2018-09-10 10:44:18,339 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 10:44:18,343 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 10:44:18,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 10:44:18 BoogieIcfgContainer [2018-09-10 10:44:18,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 10:44:18,344 INFO L168 Benchmark]: Toolchain (without parser) took 221854.63 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-10 10:44:18,345 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:44:18,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2304.61 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-09-10 10:44:18,347 INFO L168 Benchmark]: Boogie Procedure Inliner took 143.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-10 10:44:18,348 INFO L168 Benchmark]: Boogie Preprocessor took 621.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 858.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2018-09-10 10:44:18,349 INFO L168 Benchmark]: RCFGBuilder took 11389.76 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 168.8 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -34.3 MB). Peak memory consumption was 709.2 MB. Max. memory is 7.1 GB. [2018-09-10 10:44:18,350 INFO L168 Benchmark]: TraceAbstraction took 207386.14 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-10 10:44:18,355 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2304.61 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 143.28 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 621.99 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 858.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11389.76 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 168.8 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -34.3 MB). Peak memory consumption was 709.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207386.14 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.3 GB in the beginning and 3.5 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4739]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4739). Cancelled while executing MinimizeSevpa. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 207.2s OverallTime, 9 OverallIterations, 6 TraceHistogramMax, 148.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4023 SDtfs, 39502 SDslu, 2625 SDs, 0 SdLazy, 83256 SolverSat, 34268 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 107.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20793 GetRequests, 20567 SyntacticMatches, 36 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2458 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158023occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 15.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 9344 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.1s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 23.8s InterpolantComputationTime, 19107 NumberOfCodeBlocks, 19107 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 29335 ConstructedInterpolants, 0 QuantifiedInterpolants, 55659918 SizeOfPredicates, 14 NumberOfNonLiveVariables, 14576 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 29 InterpolantComputations, 8 PerfectInterpolantSequences, 9273/9970 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label57_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-44-18-371.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label57_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_10-44-18-371.csv Completed graceful shutdown