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/Problem13_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:52:25,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:52:25,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:52:25,832 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:52:25,832 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:52:25,833 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:52:25,835 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:52:25,836 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:52:25,838 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:52:25,839 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:52:25,840 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:52:25,840 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:52:25,841 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:52:25,842 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:52:25,843 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:52:25,844 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:52:25,845 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:52:25,847 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:52:25,849 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:52:25,850 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:52:25,853 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:52:25,854 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:52:25,859 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:52:25,860 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:52:25,860 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:52:25,864 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:52:25,865 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:52:25,866 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:52:25,867 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:52:25,872 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:52:25,873 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:52:25,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:52:25,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:52:25,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:52:25,877 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:52:25,877 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:52:25,878 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 11:52:25,909 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:52:25,909 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:52:25,911 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:52:25,911 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:52:25,911 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:52:25,912 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:52:25,912 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:52:25,912 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:52:25,912 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:52:25,912 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:52:25,912 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:52:25,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:52:25,914 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:52:25,915 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:52:25,915 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:52:25,915 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:52:25,915 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:52:25,915 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:52:25,916 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:52:25,916 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:52:25,916 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:52:25,916 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:52:25,916 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:52:25,918 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:52:25,918 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:52:25,918 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:52:25,918 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:52:25,918 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:52:25,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:52:25,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:52:25,919 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:52:25,919 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:52:25,919 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:52:25,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:52:25,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:52:25,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:52:25,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:52:25,989 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:52:25,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-09-10 11:52:26,335 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cf666651/5fafdfcebbc24766b43bb5bd6f89b448/FLAGf4ceac6b1 [2018-09-10 11:52:26,843 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:52:26,844 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-09-10 11:52:26,885 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cf666651/5fafdfcebbc24766b43bb5bd6f89b448/FLAGf4ceac6b1 [2018-09-10 11:52:26,908 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6cf666651/5fafdfcebbc24766b43bb5bd6f89b448 [2018-09-10 11:52:26,922 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:52:26,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:52:26,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:52:26,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:52:26,934 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:52:26,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:52:26" (1/1) ... [2018-09-10 11:52:26,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54ace127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:26, skipping insertion in model container [2018-09-10 11:52:26,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:52:26" (1/1) ... [2018-09-10 11:52:27,332 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:52:28,432 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:52:28,454 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:52:29,267 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:52:29,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29 WrapperNode [2018-09-10 11:52:29,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:52:29,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:52:29,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:52:29,680 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:52:29,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:29,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:29,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:52:29,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:52:29,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:52:29,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:52:30,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:30,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:30,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:30,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:31,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:31,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:31,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (1/1) ... [2018-09-10 11:52:31,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:52:31,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:52:31,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:52:31,162 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:52:31,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (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 11:52:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:52:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:52:31,237 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:52:31,237 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:52:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 11:52:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 11:52:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:52:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:52:31,238 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 11:52:31,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 11:52:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:52:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:52:31,239 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 11:52:31,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 11:52:46,431 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:52:46,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:52:46 BoogieIcfgContainer [2018-09-10 11:52:46,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:52:46,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:52:46,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:52:46,444 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:52:46,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:52:26" (1/3) ... [2018-09-10 11:52:46,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b49258a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:52:46, skipping insertion in model container [2018-09-10 11:52:46,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:29" (2/3) ... [2018-09-10 11:52:46,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b49258a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:52:46, skipping insertion in model container [2018-09-10 11:52:46,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:52:46" (3/3) ... [2018-09-10 11:52:46,449 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label09_true-unreach-call.c [2018-09-10 11:52:46,458 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:52:46,468 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:52:46,536 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:52:46,537 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:52:46,537 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:52:46,538 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:52:46,538 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:52:46,538 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:52:46,538 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:52:46,538 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:52:46,538 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:52:46,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-10 11:52:46,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-10 11:52:46,599 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:46,600 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] [2018-09-10 11:52:46,601 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:52:46,605 INFO L82 PathProgramCache]: Analyzing trace with hash -557421471, now seen corresponding path program 1 times [2018-09-10 11:52:46,607 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:46,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:46,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:46,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:46,657 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:47,172 WARN L175 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:52:47,305 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 11:52:47,307 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:52:47,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:52:47,308 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:52:47,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:52:47,330 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:52:47,331 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:52:47,334 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-10 11:52:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:52:58,582 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-09-10 11:52:58,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:52:58,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-09-10 11:52:58,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:52:58,623 INFO L225 Difference]: With dead ends: 3097 [2018-09-10 11:52:58,623 INFO L226 Difference]: Without dead ends: 1975 [2018-09-10 11:52:58,635 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:52:58,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-09-10 11:52:58,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-09-10 11:52:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-09-10 11:52:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-09-10 11:52:58,822 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 67 [2018-09-10 11:52:58,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:52:58,823 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-09-10 11:52:58,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:52:58,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-09-10 11:52:58,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-09-10 11:52:58,838 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:58,839 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, 1, 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 11:52:58,839 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:52:58,839 INFO L82 PathProgramCache]: Analyzing trace with hash -926627376, now seen corresponding path program 1 times [2018-09-10 11:52:58,840 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:58,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:58,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:58,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:58,844 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:52:59,133 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:52:59,133 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:52:59,133 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:52:59,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:52:59,135 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:52:59,136 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:52:59,136 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-09-10 11:53:19,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:19,447 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-09-10 11:53:19,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:53:19,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-09-10 11:53:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:19,484 INFO L225 Difference]: With dead ends: 5736 [2018-09-10 11:53:19,485 INFO L226 Difference]: Without dead ends: 3768 [2018-09-10 11:53:19,492 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:53:19,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-09-10 11:53:19,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-09-10 11:53:19,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-09-10 11:53:19,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-09-10 11:53:19,618 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 143 [2018-09-10 11:53:19,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:19,619 INFO L480 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-09-10 11:53:19,619 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:53:19,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-09-10 11:53:19,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-09-10 11:53:19,625 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:19,626 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:19,626 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:53:19,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1315064044, now seen corresponding path program 1 times [2018-09-10 11:53:19,627 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:19,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:19,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:19,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:19,628 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:19,908 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:53:19,909 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:19,909 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:53:19,910 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:19,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:53:19,911 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:53:19,911 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:53:19,911 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-09-10 11:53:38,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:38,659 INFO L93 Difference]: Finished difference Result 12385 states and 19155 transitions. [2018-09-10 11:53:38,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:53:38,659 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-09-10 11:53:38,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:38,704 INFO L225 Difference]: With dead ends: 12385 [2018-09-10 11:53:38,704 INFO L226 Difference]: Without dead ends: 8705 [2018-09-10 11:53:38,723 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:53:38,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2018-09-10 11:53:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8670. [2018-09-10 11:53:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8670 states. [2018-09-10 11:53:38,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 12398 transitions. [2018-09-10 11:53:38,920 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 12398 transitions. Word has length 157 [2018-09-10 11:53:38,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:38,921 INFO L480 AbstractCegarLoop]: Abstraction has 8670 states and 12398 transitions. [2018-09-10 11:53:38,921 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:53:38,921 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 12398 transitions. [2018-09-10 11:53:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-09-10 11:53:38,925 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:38,926 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:38,926 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:53:38,926 INFO L82 PathProgramCache]: Analyzing trace with hash -664985952, now seen corresponding path program 1 times [2018-09-10 11:53:38,926 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:38,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:38,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:38,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:38,928 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:53:39,180 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:39,180 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:53:39,180 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:39,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:53:39,181 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:53:39,181 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:53:39,181 INFO L87 Difference]: Start difference. First operand 8670 states and 12398 transitions. Second operand 4 states. [2018-09-10 11:53:51,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:51,257 INFO L93 Difference]: Finished difference Result 33582 states and 50403 transitions. [2018-09-10 11:53:51,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:53:51,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 183 [2018-09-10 11:53:51,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:51,387 INFO L225 Difference]: With dead ends: 33582 [2018-09-10 11:53:51,388 INFO L226 Difference]: Without dead ends: 24918 [2018-09-10 11:53:51,436 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:53:51,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24918 states. [2018-09-10 11:53:52,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24918 to 24882. [2018-09-10 11:53:52,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24882 states. [2018-09-10 11:53:52,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24882 states to 24882 states and 34068 transitions. [2018-09-10 11:53:52,159 INFO L78 Accepts]: Start accepts. Automaton has 24882 states and 34068 transitions. Word has length 183 [2018-09-10 11:53:52,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:52,160 INFO L480 AbstractCegarLoop]: Abstraction has 24882 states and 34068 transitions. [2018-09-10 11:53:52,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:53:52,161 INFO L276 IsEmpty]: Start isEmpty. Operand 24882 states and 34068 transitions. [2018-09-10 11:53:52,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-09-10 11:53:52,187 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:52,188 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:53:52,188 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:53:52,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1611342734, now seen corresponding path program 1 times [2018-09-10 11:53:52,189 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:52,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:52,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:52,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:52,190 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:52,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:52,881 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 348 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-10 11:53:52,882 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:53:52,882 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 11:53:52,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:52,903 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:53:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:53,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:53:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 11:53:53,603 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:53:54,645 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 11:53:54,667 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:53:54,667 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 11:53:54,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:54,683 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:53:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:54,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:53:55,216 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 348 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 11:53:55,217 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:53:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 350 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 11:53:55,869 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:53:55,869 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 11:53:55,869 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:53:55,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:53:55,870 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:53:55,871 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:53:55,871 INFO L87 Difference]: Start difference. First operand 24882 states and 34068 transitions. Second operand 9 states. [2018-09-10 11:54:21,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:54:21,536 INFO L93 Difference]: Finished difference Result 66830 states and 103329 transitions. [2018-09-10 11:54:21,537 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 11:54:21,537 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 342 [2018-09-10 11:54:21,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:54:21,794 INFO L225 Difference]: With dead ends: 66830 [2018-09-10 11:54:21,795 INFO L226 Difference]: Without dead ends: 41954 [2018-09-10 11:54:21,940 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1367 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 11:54:21,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41954 states. [2018-09-10 11:54:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41954 to 41822. [2018-09-10 11:54:22,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41822 states. [2018-09-10 11:54:23,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41822 states to 41822 states and 58228 transitions. [2018-09-10 11:54:23,476 INFO L78 Accepts]: Start accepts. Automaton has 41822 states and 58228 transitions. Word has length 342 [2018-09-10 11:54:23,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:54:23,477 INFO L480 AbstractCegarLoop]: Abstraction has 41822 states and 58228 transitions. [2018-09-10 11:54:23,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:54:23,477 INFO L276 IsEmpty]: Start isEmpty. Operand 41822 states and 58228 transitions. [2018-09-10 11:54:23,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-09-10 11:54:23,521 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:54:23,521 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:54:23,522 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:54:23,523 INFO L82 PathProgramCache]: Analyzing trace with hash -1520469048, now seen corresponding path program 1 times [2018-09-10 11:54:23,523 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:54:23,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:23,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:23,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:23,524 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:54:23,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:24,007 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-09-10 11:54:24,007 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:54:24,007 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:54:24,007 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:54:24,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:54:24,008 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:54:24,008 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:54:24,009 INFO L87 Difference]: Start difference. First operand 41822 states and 58228 transitions. Second operand 4 states. [2018-09-10 11:54:39,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:54:39,619 INFO L93 Difference]: Finished difference Result 157319 states and 247484 transitions. [2018-09-10 11:54:39,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:54:39,620 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 341 [2018-09-10 11:54:39,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:54:40,207 INFO L225 Difference]: With dead ends: 157319 [2018-09-10 11:54:40,207 INFO L226 Difference]: Without dead ends: 115503 [2018-09-10 11:54:40,471 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:54:40,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115503 states. [2018-09-10 11:54:44,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115503 to 115339. [2018-09-10 11:54:44,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115339 states. [2018-09-10 11:54:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115339 states to 115339 states and 166900 transitions. [2018-09-10 11:54:44,644 INFO L78 Accepts]: Start accepts. Automaton has 115339 states and 166900 transitions. Word has length 341 [2018-09-10 11:54:44,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:54:44,645 INFO L480 AbstractCegarLoop]: Abstraction has 115339 states and 166900 transitions. [2018-09-10 11:54:44,645 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:54:44,646 INFO L276 IsEmpty]: Start isEmpty. Operand 115339 states and 166900 transitions. [2018-09-10 11:54:44,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-09-10 11:54:44,718 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:54:44,718 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:54:44,719 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:54:44,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1038877644, now seen corresponding path program 1 times [2018-09-10 11:54:44,719 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:54:44,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:44,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:44,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:44,721 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:54:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:45,423 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:54:45,423 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:54:45,423 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 11:54:45,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:45,439 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:54:45,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:45,574 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:54:45,763 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-10 11:54:45,763 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:54:46,168 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-09-10 11:54:46,200 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:54:46,201 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 11:54:46,201 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:54:46,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:54:46,202 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:54:46,203 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:54:46,203 INFO L87 Difference]: Start difference. First operand 115339 states and 166900 transitions. Second operand 3 states. [2018-09-10 11:54:55,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:54:55,994 INFO L93 Difference]: Finished difference Result 300101 states and 468572 transitions. [2018-09-10 11:54:55,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:54:55,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 358 [2018-09-10 11:54:55,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:54:57,051 INFO L225 Difference]: With dead ends: 300101 [2018-09-10 11:54:57,051 INFO L226 Difference]: Without dead ends: 184768 [2018-09-10 11:54:57,492 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 715 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:54:57,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184768 states. [2018-09-10 11:55:02,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184768 to 184764. [2018-09-10 11:55:02,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184764 states. [2018-09-10 11:55:02,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184764 states to 184764 states and 271008 transitions. [2018-09-10 11:55:02,741 INFO L78 Accepts]: Start accepts. Automaton has 184764 states and 271008 transitions. Word has length 358 [2018-09-10 11:55:02,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:02,742 INFO L480 AbstractCegarLoop]: Abstraction has 184764 states and 271008 transitions. [2018-09-10 11:55:02,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:55:02,742 INFO L276 IsEmpty]: Start isEmpty. Operand 184764 states and 271008 transitions. [2018-09-10 11:55:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-09-10 11:55:02,777 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:02,777 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:55:02,777 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:55:02,778 INFO L82 PathProgramCache]: Analyzing trace with hash 617954152, now seen corresponding path program 1 times [2018-09-10 11:55:02,778 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:02,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:02,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:02,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:02,779 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:03,105 WARN L175 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-09-10 11:55:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-10 11:55:03,185 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:03,185 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 11:55:03,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:03,196 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:03,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:03,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-09-10 11:55:03,561 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:03,882 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (5)] Abandoning pump threads because process wont die! [2018-09-10 11:55:05,530 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:55:05,531 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-09-10 11:55:05,531 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:05,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:55:05,532 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:55:05,532 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:55:05,532 INFO L87 Difference]: Start difference. First operand 184764 states and 271008 transitions. Second operand 3 states. [2018-09-10 11:55:18,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:18,089 INFO L93 Difference]: Finished difference Result 398587 states and 602877 transitions. [2018-09-10 11:55:18,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:55:18,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 368 [2018-09-10 11:55:18,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:19,180 INFO L225 Difference]: With dead ends: 398587 [2018-09-10 11:55:19,180 INFO L226 Difference]: Without dead ends: 232613 [2018-09-10 11:55:19,556 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:55:19,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232613 states. [2018-09-10 11:55:35,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232613 to 232608. [2018-09-10 11:55:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232608 states. [2018-09-10 11:55:36,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232608 states to 232608 states and 331894 transitions. [2018-09-10 11:55:36,039 INFO L78 Accepts]: Start accepts. Automaton has 232608 states and 331894 transitions. Word has length 368 [2018-09-10 11:55:36,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:36,039 INFO L480 AbstractCegarLoop]: Abstraction has 232608 states and 331894 transitions. [2018-09-10 11:55:36,039 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:55:36,040 INFO L276 IsEmpty]: Start isEmpty. Operand 232608 states and 331894 transitions. [2018-09-10 11:55:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-09-10 11:55:36,061 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:36,061 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:55:36,062 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:55:36,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1957169633, now seen corresponding path program 1 times [2018-09-10 11:55:36,062 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:36,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:36,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:36,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:36,063 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:36,393 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 253 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:36,393 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:36,393 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 11:55:36,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:36,402 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:36,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:36,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-09-10 11:55:37,088 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-09-10 11:55:37,242 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:55:37,243 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-09-10 11:55:37,243 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:37,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:55:37,244 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:55:37,244 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:55:37,244 INFO L87 Difference]: Start difference. First operand 232608 states and 331894 transitions. Second operand 3 states. [2018-09-10 11:55:46,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:46,074 INFO L93 Difference]: Finished difference Result 446387 states and 642090 transitions. [2018-09-10 11:55:46,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:55:46,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 375 [2018-09-10 11:55:46,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:47,865 INFO L225 Difference]: With dead ends: 446387 [2018-09-10 11:55:47,865 INFO L226 Difference]: Without dead ends: 232569 [2018-09-10 11:55:48,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:55:48,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232569 states. [2018-09-10 11:55:52,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232569 to 232569. [2018-09-10 11:55:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232569 states. [2018-09-10 11:55:54,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232569 states to 232569 states and 331137 transitions. [2018-09-10 11:55:54,155 INFO L78 Accepts]: Start accepts. Automaton has 232569 states and 331137 transitions. Word has length 375 [2018-09-10 11:55:54,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:54,156 INFO L480 AbstractCegarLoop]: Abstraction has 232569 states and 331137 transitions. [2018-09-10 11:55:54,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:55:54,156 INFO L276 IsEmpty]: Start isEmpty. Operand 232569 states and 331137 transitions. [2018-09-10 11:55:54,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2018-09-10 11:55:54,198 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:54,198 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:55:54,199 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:55:54,199 INFO L82 PathProgramCache]: Analyzing trace with hash 289092816, now seen corresponding path program 1 times [2018-09-10 11:55:54,199 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:54,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:54,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:54,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:54,200 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:54,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:54,551 WARN L175 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:55:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 121 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-10 11:55:54,735 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:54,736 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:55:54,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:54,744 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:54,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:55,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:55,982 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:56,004 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:56,004 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:55:56,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:56,020 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:56,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:56,357 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-10 11:55:56,475 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-10 11:55:56,818 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-10 11:55:56,819 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-09-10 11:55:56,819 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:56,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:55:56,820 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:55:56,820 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:55:56,822 INFO L87 Difference]: Start difference. First operand 232569 states and 331137 transitions. Second operand 5 states. Received shutdown request... [2018-09-10 11:55:59,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:55:59,366 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:55:59,372 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:55:59,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:55:59 BoogieIcfgContainer [2018-09-10 11:55:59,372 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:55:59,373 INFO L168 Benchmark]: Toolchain (without parser) took 212450.77 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-10 11:55:59,374 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 11:55:59,375 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2752.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. [2018-09-10 11:55:59,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 303.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-10 11:55:59,376 INFO L168 Benchmark]: Boogie Preprocessor took 1177.47 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 987.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-10 11:55:59,377 INFO L168 Benchmark]: RCFGBuilder took 15271.19 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 148.4 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 112.8 MB). Peak memory consumption was 746.1 MB. Max. memory is 7.1 GB. [2018-09-10 11:55:59,378 INFO L168 Benchmark]: TraceAbstraction took 192938.20 ms. Allocated memory was 2.7 GB in the beginning and 5.1 GB in the end (delta: 2.4 GB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -294.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-10 11:55:59,384 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2752.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 339.3 MB). Peak memory consumption was 339.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 303.96 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1177.47 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 987.8 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15271.19 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 148.4 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 112.8 MB). Peak memory consumption was 746.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 192938.20 ms. Allocated memory was 2.7 GB in the beginning and 5.1 GB in the end (delta: 2.4 GB). Free memory was 2.2 GB in the beginning and 2.5 GB in the end (delta: -294.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (232569states) and FLOYD_HOARE automaton (currently 4 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (23733 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 192.8s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 144.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7950 SDtfs, 24116 SDslu, 3992 SDs, 0 SdLazy, 48959 SolverSat, 11301 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 110.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5290 GetRequests, 5215 SyntacticMatches, 16 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232608occurred in iteration=8, 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: 34.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 459 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 9.1s InterpolantComputationTime, 5352 NumberOfCodeBlocks, 5352 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7935 ConstructedInterpolants, 0 QuantifiedInterpolants, 7157828 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4229 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 24 InterpolantComputations, 11 PerfectInterpolantSequences, 5877/5999 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-55-59-398.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-55-59-398.csv Completed graceful shutdown