java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label28_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:38:58,446 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:38:58,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:38:58,460 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:38:58,461 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:38:58,463 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:38:58,464 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:38:58,467 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:38:58,468 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:38:58,470 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:38:58,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:38:58,472 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:38:58,473 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:38:58,474 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:38:58,475 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:38:58,476 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:38:58,476 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:38:58,478 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:38:58,480 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:38:58,482 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:38:58,483 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:38:58,484 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:38:58,486 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:38:58,486 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:38:58,487 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:38:58,488 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:38:58,488 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:38:58,489 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:38:58,490 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:38:58,491 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:38:58,491 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:38:58,492 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:38:58,492 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:38:58,493 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:38:58,494 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:38:58,494 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:38:58,495 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 12:38:58,515 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:38:58,516 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:38:58,517 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:38:58,517 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:38:58,517 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:38:58,517 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:38:58,520 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:38:58,521 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:38:58,521 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:38:58,521 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:38:58,521 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:38:58,522 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:38:58,523 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:38:58,523 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:38:58,523 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:38:58,523 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:38:58,524 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:38:58,524 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:38:58,524 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:38:58,524 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:38:58,524 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:38:58,524 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:38:58,525 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:38:58,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:38:58,525 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:38:58,525 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:38:58,527 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:38:58,527 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:38:58,527 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:38:58,527 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:38:58,528 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:38:58,528 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:38:58,528 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:38:58,582 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:38:58,594 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:38:58,599 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:38:58,600 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:38:58,600 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:38:58,601 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label28_false-unreach-call.c [2018-07-24 12:38:58,956 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae6f514d/1945470d9c594e1e855a2c34b9cfa233/FLAG81d358141 [2018-07-24 12:38:59,585 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:38:59,586 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label28_false-unreach-call.c [2018-07-24 12:38:59,637 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae6f514d/1945470d9c594e1e855a2c34b9cfa233/FLAG81d358141 [2018-07-24 12:38:59,661 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae6f514d/1945470d9c594e1e855a2c34b9cfa233 [2018-07-24 12:38:59,675 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:38:59,677 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:38:59,679 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:38:59,679 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:38:59,690 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:38:59,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:38:59" (1/1) ... [2018-07-24 12:38:59,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3036c7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:38:59, skipping insertion in model container [2018-07-24 12:38:59,695 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:38:59" (1/1) ... [2018-07-24 12:39:00,167 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:39:01,755 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:39:01,774 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:39:02,929 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:39:03,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03 WrapperNode [2018-07-24 12:39:03,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:39:03,777 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:39:03,777 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:39:03,777 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:39:03,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:03,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:04,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:39:04,118 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:39:04,118 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:39:04,118 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:39:05,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,564 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... [2018-07-24 12:39:05,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:39:05,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:39:05,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:39:05,767 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:39:05,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:39:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:39:05,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:39:05,843 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 12:39:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 12:39:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:39:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:39:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output5 [2018-07-24 12:39:05,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output5 [2018-07-24 12:39:05,844 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:39:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:39:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:39:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 12:39:05,845 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 12:39:05,845 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 12:39:05,846 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output6 [2018-07-24 12:39:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output6 [2018-07-24 12:39:05,847 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:39:05,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 12:39:23,922 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:39:23,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:39:23 BoogieIcfgContainer [2018-07-24 12:39:23,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:39:23,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:39:23,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:39:23,933 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:39:23,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:38:59" (1/3) ... [2018-07-24 12:39:23,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be822bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:39:23, skipping insertion in model container [2018-07-24 12:39:23,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:39:03" (2/3) ... [2018-07-24 12:39:23,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be822bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:39:23, skipping insertion in model container [2018-07-24 12:39:23,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:39:23" (3/3) ... [2018-07-24 12:39:23,937 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label28_false-unreach-call.c [2018-07-24 12:39:23,944 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:39:23,953 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:39:24,021 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:39:24,022 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:39:24,022 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:39:24,022 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:39:24,023 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:39:24,023 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:39:24,023 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:39:24,023 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:39:24,023 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:39:24,083 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-24 12:39:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-07-24 12:39:24,090 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:24,091 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:39:24,091 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:39:24,096 INFO L82 PathProgramCache]: Analyzing trace with hash 32957062, now seen corresponding path program 1 times [2018-07-24 12:39:24,099 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:24,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:24,142 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:24,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:24,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:24,565 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:39:24,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:39:24,679 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:39:24,680 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:39:24,680 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:24,692 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:39:24,707 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:39:24,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:39:24,711 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-24 12:39:43,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:39:43,288 INFO L93 Difference]: Finished difference Result 5040 states and 9510 transitions. [2018-07-24 12:39:43,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:39:43,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-07-24 12:39:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:39:43,350 INFO L225 Difference]: With dead ends: 5040 [2018-07-24 12:39:43,350 INFO L226 Difference]: Without dead ends: 3260 [2018-07-24 12:39:43,364 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:39:43,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2018-07-24 12:39:43,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3207. [2018-07-24 12:39:43,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3207 states. [2018-07-24 12:39:43,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3207 states to 3207 states and 6013 transitions. [2018-07-24 12:39:43,572 INFO L78 Accepts]: Start accepts. Automaton has 3207 states and 6013 transitions. Word has length 30 [2018-07-24 12:39:43,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:39:43,572 INFO L471 AbstractCegarLoop]: Abstraction has 3207 states and 6013 transitions. [2018-07-24 12:39:43,573 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:39:43,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3207 states and 6013 transitions. [2018-07-24 12:39:43,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2018-07-24 12:39:43,579 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:39:43,580 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:39:43,580 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:39:43,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1994898555, now seen corresponding path program 1 times [2018-07-24 12:39:43,581 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:39:43,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:43,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:39:43,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:39:43,582 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:39:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:39:44,166 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:39:44,166 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:39:44,167 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:39:44,167 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:39:44,169 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:39:44,169 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:39:44,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:39:44,170 INFO L87 Difference]: Start difference. First operand 3207 states and 6013 transitions. Second operand 6 states. [2018-07-24 12:40:31,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:40:31,278 INFO L93 Difference]: Finished difference Result 12537 states and 23997 transitions. [2018-07-24 12:40:31,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 12:40:31,280 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2018-07-24 12:40:31,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:40:31,336 INFO L225 Difference]: With dead ends: 12537 [2018-07-24 12:40:31,336 INFO L226 Difference]: Without dead ends: 9336 [2018-07-24 12:40:31,350 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:40:31,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9336 states. [2018-07-24 12:40:31,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9336 to 9286. [2018-07-24 12:40:31,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9286 states. [2018-07-24 12:40:31,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9286 states to 9286 states and 13845 transitions. [2018-07-24 12:40:31,633 INFO L78 Accepts]: Start accepts. Automaton has 9286 states and 13845 transitions. Word has length 106 [2018-07-24 12:40:31,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:40:31,634 INFO L471 AbstractCegarLoop]: Abstraction has 9286 states and 13845 transitions. [2018-07-24 12:40:31,634 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:40:31,634 INFO L276 IsEmpty]: Start isEmpty. Operand 9286 states and 13845 transitions. [2018-07-24 12:40:31,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-24 12:40:31,638 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:40:31,638 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:40:31,639 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:40:31,639 INFO L82 PathProgramCache]: Analyzing trace with hash -733230407, now seen corresponding path program 1 times [2018-07-24 12:40:31,639 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:40:31,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:40:31,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:40:31,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:40:31,641 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:40:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:40:31,968 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:40:31,968 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:40:31,968 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 12:40:31,969 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:40:31,969 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:40:31,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:40:31,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 12:40:31,971 INFO L87 Difference]: Start difference. First operand 9286 states and 13845 transitions. Second operand 5 states. [2018-07-24 12:40:55,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:40:55,298 INFO L93 Difference]: Finished difference Result 28063 states and 42687 transitions. [2018-07-24 12:40:55,301 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:40:55,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2018-07-24 12:40:55,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:40:55,385 INFO L225 Difference]: With dead ends: 28063 [2018-07-24 12:40:55,386 INFO L226 Difference]: Without dead ends: 18783 [2018-07-24 12:40:55,417 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:40:55,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18783 states. [2018-07-24 12:40:55,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18783 to 18441. [2018-07-24 12:40:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18441 states. [2018-07-24 12:40:55,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18441 states to 18441 states and 26763 transitions. [2018-07-24 12:40:55,834 INFO L78 Accepts]: Start accepts. Automaton has 18441 states and 26763 transitions. Word has length 112 [2018-07-24 12:40:55,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:40:55,835 INFO L471 AbstractCegarLoop]: Abstraction has 18441 states and 26763 transitions. [2018-07-24 12:40:55,835 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:40:55,835 INFO L276 IsEmpty]: Start isEmpty. Operand 18441 states and 26763 transitions. [2018-07-24 12:40:55,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-07-24 12:40:55,843 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:40:55,845 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:40:55,845 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:40:55,845 INFO L82 PathProgramCache]: Analyzing trace with hash -1997821126, now seen corresponding path program 1 times [2018-07-24 12:40:55,846 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:40:55,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:40:55,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:40:55,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:40:55,848 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:40:55,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:40:56,087 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:40:56,088 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:40:56,088 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:40:56,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:40:56,101 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:40:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:40:56,210 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:40:56,580 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 12:40:56,581 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:40:56,792 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 12:40:57,388 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 46 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:40:57,417 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:40:57,417 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 12:40:57,417 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:40:57,418 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:40:57,419 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:40:57,419 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:40:57,419 INFO L87 Difference]: Start difference. First operand 18441 states and 26763 transitions. Second operand 5 states. [2018-07-24 12:41:16,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:41:16,945 INFO L93 Difference]: Finished difference Result 52546 states and 80784 transitions. [2018-07-24 12:41:16,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:41:16,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 196 [2018-07-24 12:41:16,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:41:17,128 INFO L225 Difference]: With dead ends: 52546 [2018-07-24 12:41:17,128 INFO L226 Difference]: Without dead ends: 34111 [2018-07-24 12:41:17,192 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 386 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:41:17,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34111 states. [2018-07-24 12:41:18,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34111 to 33453. [2018-07-24 12:41:18,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33453 states. [2018-07-24 12:41:18,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33453 states to 33453 states and 49135 transitions. [2018-07-24 12:41:18,175 INFO L78 Accepts]: Start accepts. Automaton has 33453 states and 49135 transitions. Word has length 196 [2018-07-24 12:41:18,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:41:18,176 INFO L471 AbstractCegarLoop]: Abstraction has 33453 states and 49135 transitions. [2018-07-24 12:41:18,176 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:41:18,176 INFO L276 IsEmpty]: Start isEmpty. Operand 33453 states and 49135 transitions. [2018-07-24 12:41:18,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-07-24 12:41:18,188 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:41:18,189 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:41:18,189 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:41:18,189 INFO L82 PathProgramCache]: Analyzing trace with hash -170526683, now seen corresponding path program 1 times [2018-07-24 12:41:18,190 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:41:18,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:18,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:18,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:18,191 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:41:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:18,512 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:41:18,513 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:41:18,513 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 12:41:18,513 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:41:18,514 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 12:41:18,514 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 12:41:18,514 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:41:18,515 INFO L87 Difference]: Start difference. First operand 33453 states and 49135 transitions. Second operand 4 states. [2018-07-24 12:41:45,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:41:45,053 INFO L93 Difference]: Finished difference Result 95835 states and 146622 transitions. [2018-07-24 12:41:45,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 12:41:45,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 254 [2018-07-24 12:41:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:41:45,270 INFO L225 Difference]: With dead ends: 95835 [2018-07-24 12:41:45,271 INFO L226 Difference]: Without dead ends: 59477 [2018-07-24 12:41:45,359 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 12:41:45,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59477 states. [2018-07-24 12:41:46,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59477 to 59418. [2018-07-24 12:41:46,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59418 states. [2018-07-24 12:41:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59418 states to 59418 states and 83593 transitions. [2018-07-24 12:41:46,488 INFO L78 Accepts]: Start accepts. Automaton has 59418 states and 83593 transitions. Word has length 254 [2018-07-24 12:41:46,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:41:46,491 INFO L471 AbstractCegarLoop]: Abstraction has 59418 states and 83593 transitions. [2018-07-24 12:41:46,491 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 12:41:46,492 INFO L276 IsEmpty]: Start isEmpty. Operand 59418 states and 83593 transitions. [2018-07-24 12:41:46,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-07-24 12:41:46,501 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:41:46,502 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:41:46,502 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:41:46,503 INFO L82 PathProgramCache]: Analyzing trace with hash 806166550, now seen corresponding path program 1 times [2018-07-24 12:41:46,503 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:41:46,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:46,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:46,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:41:46,504 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:41:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:46,944 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:41:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 69 proven. 156 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 12:41:47,514 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:41:47,515 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:41:47,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:41:47,534 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:41:47,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:41:47,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:41:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-07-24 12:41:48,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:41:48,738 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 69 proven. 156 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 12:41:48,759 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:41:48,759 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 12:41:48,760 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:41:48,760 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:41:48,761 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:41:48,761 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 12:41:48,761 INFO L87 Difference]: Start difference. First operand 59418 states and 83593 transitions. Second operand 5 states. [2018-07-24 12:42:13,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:42:13,246 INFO L93 Difference]: Finished difference Result 151093 states and 234668 transitions. [2018-07-24 12:42:13,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:42:13,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 413 [2018-07-24 12:42:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:42:13,617 INFO L225 Difference]: With dead ends: 151093 [2018-07-24 12:42:13,617 INFO L226 Difference]: Without dead ends: 91681 [2018-07-24 12:42:13,775 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 820 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 12:42:13,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91681 states. [2018-07-24 12:42:15,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91681 to 90664. [2018-07-24 12:42:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90664 states. [2018-07-24 12:42:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90664 states to 90664 states and 134396 transitions. [2018-07-24 12:42:15,737 INFO L78 Accepts]: Start accepts. Automaton has 90664 states and 134396 transitions. Word has length 413 [2018-07-24 12:42:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:42:15,738 INFO L471 AbstractCegarLoop]: Abstraction has 90664 states and 134396 transitions. [2018-07-24 12:42:15,738 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:42:15,738 INFO L276 IsEmpty]: Start isEmpty. Operand 90664 states and 134396 transitions. [2018-07-24 12:42:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2018-07-24 12:42:15,753 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:42:15,753 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:42:15,753 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:42:15,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1025317652, now seen corresponding path program 1 times [2018-07-24 12:42:15,754 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:42:15,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:15,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:15,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:15,755 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:42:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:16,358 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 69 proven. 156 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 12:42:16,359 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:42:16,359 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:42:16,368 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:16,368 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:42:16,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:16,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:42:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-07-24 12:42:17,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:42:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 69 proven. 156 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 12:42:17,701 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 12:42:17,702 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-07-24 12:42:17,702 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:42:17,702 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:42:17,702 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:42:17,703 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:42:17,703 INFO L87 Difference]: Start difference. First operand 90664 states and 134396 transitions. Second operand 5 states. [2018-07-24 12:42:46,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:42:46,915 INFO L93 Difference]: Finished difference Result 272013 states and 444729 transitions. [2018-07-24 12:42:46,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:42:46,915 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 431 [2018-07-24 12:42:46,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:42:47,484 INFO L225 Difference]: With dead ends: 272013 [2018-07-24 12:42:47,485 INFO L226 Difference]: Without dead ends: 181354 [2018-07-24 12:42:47,673 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 860 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:42:47,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181354 states. [2018-07-24 12:42:51,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181354 to 179124. [2018-07-24 12:42:51,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179124 states. [2018-07-24 12:42:51,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179124 states to 179124 states and 267151 transitions. [2018-07-24 12:42:51,580 INFO L78 Accepts]: Start accepts. Automaton has 179124 states and 267151 transitions. Word has length 431 [2018-07-24 12:42:51,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:42:51,581 INFO L471 AbstractCegarLoop]: Abstraction has 179124 states and 267151 transitions. [2018-07-24 12:42:51,581 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:42:51,581 INFO L276 IsEmpty]: Start isEmpty. Operand 179124 states and 267151 transitions. [2018-07-24 12:42:51,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 877 [2018-07-24 12:42:51,663 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:42:51,664 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:42:51,664 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 12:42:51,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1335695669, now seen corresponding path program 1 times [2018-07-24 12:42:51,665 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:42:51,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:51,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:51,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:51,666 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:42:51,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:54,438 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 190 proven. 100 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-07-24 12:42:54,438 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:42:54,438 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:42:54,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:54,446 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:42:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:54,771 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-07-24 12:42:56,787 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 363 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-07-24 12:42:56,788 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:42:56,790 WARN L177 SmtUtils]: Removed 1 from assertion stack [2018-07-24 12:42:56,791 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-24 12:42:56,992 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 12:42:56,992 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:42:56,996 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:42:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:42:56 BoogieIcfgContainer [2018-07-24 12:42:56,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:42:56,997 INFO L168 Benchmark]: Toolchain (without parser) took 237321.50 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -517.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-07-24 12:42:56,998 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 12:42:56,999 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4097.33 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 219.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -136.2 MB). Peak memory consumption was 491.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:57,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 341.15 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:57,000 INFO L168 Benchmark]: Boogie Preprocessor took 1647.92 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 859.8 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -886.4 MB). Peak memory consumption was 127.5 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:57,004 INFO L168 Benchmark]: RCFGBuilder took 18156.80 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 270.5 MB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 285.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 12:42:57,005 INFO L168 Benchmark]: TraceAbstraction took 213072.51 ms. Allocated memory was 2.9 GB in the beginning and 3.5 GB in the end (delta: 607.1 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 155.9 MB). Peak memory consumption was 763.0 MB. Max. memory is 7.1 GB. [2018-07-24 12:42:57,012 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 4097.33 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 219.2 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -136.2 MB). Peak memory consumption was 491.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 341.15 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.0 MB). Peak memory consumption was 64.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1647.92 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 859.8 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -886.4 MB). Peak memory consumption was 127.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18156.80 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 270.5 MB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 285.4 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 213072.51 ms. Allocated memory was 2.9 GB in the beginning and 3.5 GB in the end (delta: 607.1 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 155.9 MB). Peak memory consumption was 763.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 85]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 85). Cancelled while BasicCegarLoop was analyzing trace of length 877 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was doing sequential composition of 95 TransFormulas, while SimplifyDDAWithTimeout was simplifying term of DAG size 1. - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 212.9s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 190.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4578 SDtfs, 37083 SDslu, 4637 SDs, 0 SdLazy, 63673 SolverSat, 18371 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 163.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2138 GetRequests, 2078 SyntacticMatches, 11 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179124occurred 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: 8.8s AutomataMinimizationTime, 7 MinimizatonAttempts, 4409 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.0s InterpolantComputationTime, 2582 NumberOfCodeBlocks, 2582 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3609 ConstructedInterpolants, 0 QuantifiedInterpolants, 4819977 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1769 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 1535/2301 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/Problem19_label28_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-42-57-029.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label28_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-42-57-029.csv Completed graceful shutdown