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_label53_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 12:41:34,644 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 12:41:34,646 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 12:41:34,657 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 12:41:34,658 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 12:41:34,661 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 12:41:34,663 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 12:41:34,665 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 12:41:34,667 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 12:41:34,668 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 12:41:34,669 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 12:41:34,669 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 12:41:34,670 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 12:41:34,671 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 12:41:34,672 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 12:41:34,673 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 12:41:34,674 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 12:41:34,676 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 12:41:34,678 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 12:41:34,679 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 12:41:34,680 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 12:41:34,681 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 12:41:34,684 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 12:41:34,684 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 12:41:34,685 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 12:41:34,685 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 12:41:34,687 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 12:41:34,687 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 12:41:34,688 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 12:41:34,689 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 12:41:34,690 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 12:41:34,690 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 12:41:34,691 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 12:41:34,691 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 12:41:34,692 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 12:41:34,692 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 12:41:34,693 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 12:41:34,715 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 12:41:34,716 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 12:41:34,717 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 12:41:34,717 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 12:41:34,717 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 12:41:34,717 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 12:41:34,717 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 12:41:34,718 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 12:41:34,718 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 12:41:34,718 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 12:41:34,720 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 12:41:34,721 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 12:41:34,721 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 12:41:34,721 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 12:41:34,722 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 12:41:34,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 12:41:34,723 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 12:41:34,723 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 12:41:34,723 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 12:41:34,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 12:41:34,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 12:41:34,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 12:41:34,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 12:41:34,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 12:41:34,726 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 12:41:34,726 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 12:41:34,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 12:41:34,726 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 12:41:34,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 12:41:34,727 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 12:41:34,727 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 12:41:34,727 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 12:41:34,727 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 12:41:34,796 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 12:41:34,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 12:41:34,820 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 12:41:34,822 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 12:41:34,823 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 12:41:34,823 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label53_false-unreach-call.c [2018-07-24 12:41:35,193 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a9be795/ad1a36c03b0d494f9948fec1ef37ad41/FLAGa4f665466 [2018-07-24 12:41:35,776 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 12:41:35,777 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label53_false-unreach-call.c [2018-07-24 12:41:35,843 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a9be795/ad1a36c03b0d494f9948fec1ef37ad41/FLAGa4f665466 [2018-07-24 12:41:35,859 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81a9be795/ad1a36c03b0d494f9948fec1ef37ad41 [2018-07-24 12:41:35,870 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 12:41:35,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 12:41:35,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 12:41:35,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 12:41:35,880 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 12:41:35,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:41:35" (1/1) ... [2018-07-24 12:41:35,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571d2557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:35, skipping insertion in model container [2018-07-24 12:41:35,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 12:41:35" (1/1) ... [2018-07-24 12:41:36,404 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 12:41:38,115 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:41:38,145 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 12:41:39,348 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 12:41:40,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40 WrapperNode [2018-07-24 12:41:40,008 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 12:41:40,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 12:41:40,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 12:41:40,010 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 12:41:40,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:40,171 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:40,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 12:41:40,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 12:41:40,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 12:41:40,293 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 12:41:41,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:41,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:41,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:41,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:41,916 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:41,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:42,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (1/1) ... [2018-07-24 12:41:42,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 12:41:42,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 12:41:42,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 12:41:42,384 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 12:41:42,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (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 12:41:42,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 12:41:42,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 12:41:42,454 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 12:41:42,454 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 12:41:42,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 12:41:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 12:41:42,455 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 12:41:42,455 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 12:41:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 12:41:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 12:41:42,455 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 12:41:42,456 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 12:41:42,456 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 12:41:42,456 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 12:41:42,456 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 12:41:42,457 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 12:41:42,457 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 12:41:42,457 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 12:42:03,503 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 12:42:03,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:42:03 BoogieIcfgContainer [2018-07-24 12:42:03,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 12:42:03,505 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 12:42:03,505 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 12:42:03,509 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 12:42:03,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 12:41:35" (1/3) ... [2018-07-24 12:42:03,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599f1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:42:03, skipping insertion in model container [2018-07-24 12:42:03,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 12:41:40" (2/3) ... [2018-07-24 12:42:03,510 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599f1f63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 12:42:03, skipping insertion in model container [2018-07-24 12:42:03,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 12:42:03" (3/3) ... [2018-07-24 12:42:03,513 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label53_false-unreach-call.c [2018-07-24 12:42:03,522 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 12:42:03,532 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 12:42:03,602 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 12:42:03,603 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 12:42:03,603 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 12:42:03,604 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 12:42:03,604 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 12:42:03,604 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 12:42:03,604 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 12:42:03,604 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 12:42:03,604 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 12:42:03,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-24 12:42:03,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-07-24 12:42:03,672 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:42:03,673 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:42:03,673 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 12:42:03,679 INFO L82 PathProgramCache]: Analyzing trace with hash -467432746, now seen corresponding path program 1 times [2018-07-24 12:42:03,681 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:42:03,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:03,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:03,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:03,731 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:42:03,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:04,097 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:42:04,143 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 12:42:04,147 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:42:04,147 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 12:42:04,148 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:42:04,153 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:42:04,168 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:42:04,169 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:42:04,172 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-24 12:42:20,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:42:20,674 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-07-24 12:42:20,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:42:20,676 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-07-24 12:42:20,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:42:20,725 INFO L225 Difference]: With dead ends: 4998 [2018-07-24 12:42:20,726 INFO L226 Difference]: Without dead ends: 3218 [2018-07-24 12:42:20,740 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 12:42:20,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-07-24 12:42:20,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-07-24 12:42:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-07-24 12:42:20,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-07-24 12:42:20,967 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 18 [2018-07-24 12:42:20,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:42:20,968 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-07-24 12:42:20,968 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:42:20,968 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-07-24 12:42:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-24 12:42:20,974 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:42:20,974 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:42:20,975 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 12:42:20,975 INFO L82 PathProgramCache]: Analyzing trace with hash 474499211, now seen corresponding path program 1 times [2018-07-24 12:42:20,975 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:42:20,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:20,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:20,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:20,977 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:42:21,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:21,354 WARN L169 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:42:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:42:21,726 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:42:21,726 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:42:21,727 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:42:21,730 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:42:21,730 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:42:21,731 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:42:21,731 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-07-24 12:42:54,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:42:54,647 INFO L93 Difference]: Finished difference Result 9340 states and 16946 transitions. [2018-07-24 12:42:54,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 12:42:54,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 90 [2018-07-24 12:42:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:42:54,693 INFO L225 Difference]: With dead ends: 9340 [2018-07-24 12:42:54,693 INFO L226 Difference]: Without dead ends: 6131 [2018-07-24 12:42:54,704 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 12:42:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6131 states. [2018-07-24 12:42:54,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6131 to 6091. [2018-07-24 12:42:54,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6091 states. [2018-07-24 12:42:54,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6091 states to 6091 states and 9637 transitions. [2018-07-24 12:42:54,877 INFO L78 Accepts]: Start accepts. Automaton has 6091 states and 9637 transitions. Word has length 90 [2018-07-24 12:42:54,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:42:54,878 INFO L471 AbstractCegarLoop]: Abstraction has 6091 states and 9637 transitions. [2018-07-24 12:42:54,878 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:42:54,878 INFO L276 IsEmpty]: Start isEmpty. Operand 6091 states and 9637 transitions. [2018-07-24 12:42:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-07-24 12:42:54,885 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:42:54,885 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:42:54,886 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 12:42:54,886 INFO L82 PathProgramCache]: Analyzing trace with hash -723149984, now seen corresponding path program 1 times [2018-07-24 12:42:54,886 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:42:54,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:54,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:42:54,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:42:54,889 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:42:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:42:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:42:55,193 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:42:55,193 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 12:42:55,194 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:42:55,194 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 12:42:55,194 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 12:42:55,195 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 12:42:55,195 INFO L87 Difference]: Start difference. First operand 6091 states and 9637 transitions. Second operand 6 states. [2018-07-24 12:43:21,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:43:21,373 INFO L93 Difference]: Finished difference Result 18500 states and 29511 transitions. [2018-07-24 12:43:21,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:43:21,377 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2018-07-24 12:43:21,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:43:21,439 INFO L225 Difference]: With dead ends: 18500 [2018-07-24 12:43:21,440 INFO L226 Difference]: Without dead ends: 12415 [2018-07-24 12:43:21,456 INFO L573 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 [2018-07-24 12:43:21,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12415 states. [2018-07-24 12:43:21,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12415 to 12189. [2018-07-24 12:43:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12189 states. [2018-07-24 12:43:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12189 states to 12189 states and 18786 transitions. [2018-07-24 12:43:21,754 INFO L78 Accepts]: Start accepts. Automaton has 12189 states and 18786 transitions. Word has length 92 [2018-07-24 12:43:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:43:21,756 INFO L471 AbstractCegarLoop]: Abstraction has 12189 states and 18786 transitions. [2018-07-24 12:43:21,756 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 12:43:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand 12189 states and 18786 transitions. [2018-07-24 12:43:21,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-07-24 12:43:21,762 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:43:21,763 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:43:21,763 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 12:43:21,763 INFO L82 PathProgramCache]: Analyzing trace with hash -357800065, now seen corresponding path program 1 times [2018-07-24 12:43:21,763 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:43:21,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:43:21,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:43:21,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:43:21,766 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:43:21,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:43:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:43:22,113 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:43:22,113 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 12:43:22,113 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:43:22,113 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 12:43:22,113 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 12:43:22,114 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 12:43:22,114 INFO L87 Difference]: Start difference. First operand 12189 states and 18786 transitions. Second operand 5 states. [2018-07-24 12:43:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:43:47,049 INFO L93 Difference]: Finished difference Result 37166 states and 58023 transitions. [2018-07-24 12:43:47,050 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 12:43:47,050 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 114 [2018-07-24 12:43:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:43:47,159 INFO L225 Difference]: With dead ends: 37166 [2018-07-24 12:43:47,159 INFO L226 Difference]: Without dead ends: 24983 [2018-07-24 12:43:47,202 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 12:43:47,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24983 states. [2018-07-24 12:43:47,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24983 to 24352. [2018-07-24 12:43:47,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24352 states. [2018-07-24 12:43:48,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24352 states to 24352 states and 33347 transitions. [2018-07-24 12:43:48,045 INFO L78 Accepts]: Start accepts. Automaton has 24352 states and 33347 transitions. Word has length 114 [2018-07-24 12:43:48,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:43:48,046 INFO L471 AbstractCegarLoop]: Abstraction has 24352 states and 33347 transitions. [2018-07-24 12:43:48,046 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 12:43:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 24352 states and 33347 transitions. [2018-07-24 12:43:48,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-07-24 12:43:48,051 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:43:48,052 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:43:48,052 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 12:43:48,052 INFO L82 PathProgramCache]: Analyzing trace with hash -997730878, now seen corresponding path program 1 times [2018-07-24 12:43:48,052 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:43:48,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:43:48,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:43:48,054 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:43:48,054 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:43:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:43:48,329 WARN L169 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 12:43:48,709 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 22 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 12:43:48,710 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:43:48,710 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 12:43:48,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:43:48,729 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:43:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:43:48,844 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:43:49,028 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 12:43:49,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:43:49,443 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-24 12:43:49,477 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 12:43:49,477 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-07-24 12:43:49,477 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:43:49,478 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 12:43:49,479 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 12:43:49,479 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:43:49,479 INFO L87 Difference]: Start difference. First operand 24352 states and 33347 transitions. Second operand 3 states. [2018-07-24 12:44:05,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:44:05,517 INFO L93 Difference]: Finished difference Result 71749 states and 101704 transitions. [2018-07-24 12:44:05,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 12:44:05,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2018-07-24 12:44:05,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:44:05,753 INFO L225 Difference]: With dead ends: 71749 [2018-07-24 12:44:05,753 INFO L226 Difference]: Without dead ends: 47403 [2018-07-24 12:44:05,859 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 377 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 12:44:05,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47403 states. [2018-07-24 12:44:06,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47403 to 47279. [2018-07-24 12:44:06,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47279 states. [2018-07-24 12:44:07,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47279 states to 47279 states and 63760 transitions. [2018-07-24 12:44:07,390 INFO L78 Accepts]: Start accepts. Automaton has 47279 states and 63760 transitions. Word has length 189 [2018-07-24 12:44:07,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:44:07,391 INFO L471 AbstractCegarLoop]: Abstraction has 47279 states and 63760 transitions. [2018-07-24 12:44:07,391 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 12:44:07,391 INFO L276 IsEmpty]: Start isEmpty. Operand 47279 states and 63760 transitions. [2018-07-24 12:44:07,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-07-24 12:44:07,396 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:44:07,397 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 12:44:07,397 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 12:44:07,404 INFO L82 PathProgramCache]: Analyzing trace with hash 951111605, now seen corresponding path program 1 times [2018-07-24 12:44:07,406 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:44:07,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:44:07,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:44:07,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:44:07,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:44:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:44:08,220 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 12:44:08,731 WARN L169 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-07-24 12:44:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 12:44:09,115 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 12:44:09,115 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 12:44:09,115 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 12:44:09,116 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 12:44:09,116 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 12:44:09,117 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 12:44:09,117 INFO L87 Difference]: Start difference. First operand 47279 states and 63760 transitions. Second operand 7 states. [2018-07-24 12:45:07,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 12:45:07,970 INFO L93 Difference]: Finished difference Result 151782 states and 221633 transitions. [2018-07-24 12:45:07,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 12:45:07,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2018-07-24 12:45:07,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 12:45:08,421 INFO L225 Difference]: With dead ends: 151782 [2018-07-24 12:45:08,421 INFO L226 Difference]: Without dead ends: 104509 [2018-07-24 12:45:08,571 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-07-24 12:45:08,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104509 states. [2018-07-24 12:45:11,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104509 to 97678. [2018-07-24 12:45:11,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97678 states. [2018-07-24 12:45:11,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97678 states to 97678 states and 128328 transitions. [2018-07-24 12:45:11,418 INFO L78 Accepts]: Start accepts. Automaton has 97678 states and 128328 transitions. Word has length 242 [2018-07-24 12:45:11,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 12:45:11,419 INFO L471 AbstractCegarLoop]: Abstraction has 97678 states and 128328 transitions. [2018-07-24 12:45:11,419 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 12:45:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 97678 states and 128328 transitions. [2018-07-24 12:45:11,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2018-07-24 12:45:11,446 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 12:45:11,447 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 12:45:11,447 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 12:45:11,448 INFO L82 PathProgramCache]: Analyzing trace with hash 665147376, now seen corresponding path program 1 times [2018-07-24 12:45:11,448 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 12:45:11,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:45:11,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:45:11,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 12:45:11,449 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 12:45:11,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:45:12,520 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 12:45:13,658 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 23 proven. 217 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-07-24 12:45:13,658 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:45:13,659 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 12:45:13,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:45:13,666 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:45:14,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:45:14,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:45:16,087 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2018-07-24 12:45:16,088 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:45:16,197 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-07-24 12:45:16,413 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2018-07-24 12:45:20,082 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 25 proven. 217 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 12:45:20,102 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 12:45:20,102 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 12:45:20,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 12:45:20,121 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 12:45:20,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 12:45:20,733 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 12:45:22,747 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2018-07-24 12:45:22,747 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 12:45:23,012 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2018-07-24 12:45:23,338 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 12:45:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 25 proven. 217 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 12:45:27,429 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 12:45:27,430 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 6, 5, 6] total 18 [2018-07-24 12:45:27,430 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 12:45:27,433 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 12:45:27,433 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 12:45:27,433 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2018-07-24 12:45:27,434 INFO L87 Difference]: Start difference. First operand 97678 states and 128328 transitions. Second operand 9 states. Received shutdown request... [2018-07-24 12:45:28,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-24 12:45:28,901 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 12:45:28,908 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 12:45:28,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 12:45:28 BoogieIcfgContainer [2018-07-24 12:45:28,909 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 12:45:28,910 INFO L168 Benchmark]: Toolchain (without parser) took 233039.20 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -318.8 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 12:45:28,911 INFO L168 Benchmark]: CDTParser took 0.41 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 12:45:28,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4136.07 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 190.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -101.9 MB). Peak memory consumption was 487.9 MB. Max. memory is 7.1 GB. [2018-07-24 12:45:28,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 282.80 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: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. [2018-07-24 12:45:28,913 INFO L168 Benchmark]: Boogie Preprocessor took 2090.72 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 825.8 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -825.9 MB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 12:45:28,914 INFO L168 Benchmark]: RCFGBuilder took 21120.44 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 268.4 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 261.4 MB). Peak memory consumption was 998.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:45:28,915 INFO L168 Benchmark]: TraceAbstraction took 205403.63 ms. Allocated memory was 2.8 GB in the beginning and 3.4 GB in the end (delta: 556.8 MB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 298.5 MB). Peak memory consumption was 855.3 MB. Max. memory is 7.1 GB. [2018-07-24 12:45:28,921 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 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 4136.07 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 190.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -101.9 MB). Peak memory consumption was 487.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 282.80 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: 49.1 MB). Peak memory consumption was 49.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2090.72 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 825.8 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -825.9 MB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 21120.44 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 268.4 MB). Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 261.4 MB). Peak memory consumption was 998.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205403.63 ms. Allocated memory was 2.8 GB in the beginning and 3.4 GB in the end (delta: 556.8 MB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 298.5 MB). Peak memory consumption was 855.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while BasicCegarLoop was constructing difference of abstraction (97678states) and interpolant automaton (currently 5 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (985 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 205.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 178.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4395 SDtfs, 36066 SDslu, 3832 SDs, 0 SdLazy, 57076 SolverSat, 13248 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 158.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3393 GetRequests, 3331 SyntacticMatches, 9 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 5.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97678occurred in iteration=6, 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: 5.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 7855 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 17.2s InterpolantComputationTime, 3148 NumberOfCodeBlocks, 3148 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4800 ConstructedInterpolants, 0 QuantifiedInterpolants, 42821369 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2342 ConjunctsInSsa, 49 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 830/1550 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_label53_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_12-45-28-937.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label53_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_12-45-28-937.csv Completed graceful shutdown