java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label35_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:51:55,651 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:51:55,653 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:51:55,665 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:51:55,665 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:51:55,666 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:51:55,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:51:55,669 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:51:55,671 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:51:55,672 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:51:55,673 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:51:55,673 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:51:55,674 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:51:55,675 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:51:55,676 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:51:55,678 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:51:55,679 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:51:55,681 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:51:55,687 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:51:55,688 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:51:55,690 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:51:55,694 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:51:55,697 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:51:55,697 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:51:55,698 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:51:55,699 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:51:55,700 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:51:55,701 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:51:55,702 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:51:55,703 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:51:55,704 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:51:55,704 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:51:55,704 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:51:55,705 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:51:55,708 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:51:55,709 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:51:55,709 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 11:51:55,739 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:51:55,740 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:51:55,741 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:51:55,741 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:51:55,741 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:51:55,741 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:51:55,742 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:51:55,742 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:51:55,742 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:51:55,742 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:51:55,745 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:51:55,746 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:51:55,747 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:51:55,747 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:51:55,747 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:51:55,747 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:51:55,747 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:51:55,748 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:51:55,748 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:51:55,748 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:51:55,748 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:51:55,750 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:51:55,750 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:51:55,751 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:51:55,751 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:51:55,751 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:51:55,751 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:51:55,751 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:51:55,752 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:51:55,752 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:51:55,752 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:51:55,752 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:51:55,752 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:51:55,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:51:55,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:51:55,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:51:55,826 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:51:55,827 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:51:55,827 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label35_false-unreach-call.c [2018-07-24 11:51:56,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dd8ee98/22b3ce9cb939455384b6f6d56aae0b6b/FLAGc356267b4 [2018-07-24 11:51:56,617 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:51:56,618 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label35_false-unreach-call.c [2018-07-24 11:51:56,656 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dd8ee98/22b3ce9cb939455384b6f6d56aae0b6b/FLAGc356267b4 [2018-07-24 11:51:56,678 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6dd8ee98/22b3ce9cb939455384b6f6d56aae0b6b [2018-07-24 11:51:56,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:51:56,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:51:56,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:51:56,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:51:56,702 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:51:56,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:51:56" (1/1) ... [2018-07-24 11:51:56,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d113511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:56, skipping insertion in model container [2018-07-24 11:51:56,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:51:56" (1/1) ... [2018-07-24 11:51:57,021 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:51:57,983 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:51:58,003 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:51:58,670 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:51:58,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58 WrapperNode [2018-07-24 11:51:58,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:51:58,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:51:58,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:51:58,929 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:51:58,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,017 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:51:59,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:51:59,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:51:59,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:51:59,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:51:59,965 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:52:00,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (1/1) ... [2018-07-24 11:52:00,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:52:00,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:52:00,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:52:00,055 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:52:00,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (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 11:52:00,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:52:00,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:52:00,132 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 11:52:00,132 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 11:52:00,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:52:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:52:00,133 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:52:00,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:52:00,133 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 11:52:00,133 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 11:52:00,134 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 11:52:00,134 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 11:52:00,134 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 11:52:00,134 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 11:52:10,271 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:52:10,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:52:10 BoogieIcfgContainer [2018-07-24 11:52:10,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:52:10,273 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:52:10,273 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:52:10,276 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:52:10,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:51:56" (1/3) ... [2018-07-24 11:52:10,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2120cc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:52:10, skipping insertion in model container [2018-07-24 11:52:10,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:51:58" (2/3) ... [2018-07-24 11:52:10,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2120cc7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:52:10, skipping insertion in model container [2018-07-24 11:52:10,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:52:10" (3/3) ... [2018-07-24 11:52:10,281 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label35_false-unreach-call.c [2018-07-24 11:52:10,290 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:52:10,300 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:52:10,369 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:52:10,370 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:52:10,370 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:52:10,371 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:52:10,371 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:52:10,371 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:52:10,371 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:52:10,372 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:52:10,372 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:52:10,424 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 11:52:10,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-07-24 11:52:10,430 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:10,431 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:52:10,431 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 11:52:10,437 INFO L82 PathProgramCache]: Analyzing trace with hash 226307908, now seen corresponding path program 1 times [2018-07-24 11:52:10,439 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:10,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:10,487 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:10,487 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:10,487 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:10,853 WARN L169 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:52:10,941 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 11:52:10,948 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:52:10,948 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:52:10,951 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:10,956 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:52:10,969 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:52:10,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:52:10,972 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-24 11:52:18,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:52:18,811 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-24 11:52:18,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:52:18,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-07-24 11:52:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:52:18,854 INFO L225 Difference]: With dead ends: 2446 [2018-07-24 11:52:18,855 INFO L226 Difference]: Without dead ends: 1604 [2018-07-24 11:52:18,866 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 11:52:18,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-24 11:52:19,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-24 11:52:19,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 11:52:19,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3014 transitions. [2018-07-24 11:52:19,057 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3014 transitions. Word has length 14 [2018-07-24 11:52:19,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:19,059 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 3014 transitions. [2018-07-24 11:52:19,059 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:52:19,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3014 transitions. [2018-07-24 11:52:19,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2018-07-24 11:52:19,067 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:19,067 INFO L353 BasicCegarLoop]: trace histogram [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 11:52:19,068 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 11:52:19,068 INFO L82 PathProgramCache]: Analyzing trace with hash -427771598, now seen corresponding path program 1 times [2018-07-24 11:52:19,068 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:19,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:19,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:19,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:19,071 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:19,398 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:19,399 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:52:19,399 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:52:19,399 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:19,401 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:52:19,402 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:52:19,403 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:52:19,403 INFO L87 Difference]: Start difference. First operand 1604 states and 3014 transitions. Second operand 5 states. [2018-07-24 11:52:33,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:52:33,888 INFO L93 Difference]: Finished difference Result 4873 states and 9168 transitions. [2018-07-24 11:52:33,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:52:33,889 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2018-07-24 11:52:33,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:52:33,912 INFO L225 Difference]: With dead ends: 4873 [2018-07-24 11:52:33,912 INFO L226 Difference]: Without dead ends: 3275 [2018-07-24 11:52:33,919 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:52:33,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-07-24 11:52:34,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-07-24 11:52:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-07-24 11:52:34,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5443 transitions. [2018-07-24 11:52:34,042 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5443 transitions. Word has length 84 [2018-07-24 11:52:34,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:34,042 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5443 transitions. [2018-07-24 11:52:34,042 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:52:34,043 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5443 transitions. [2018-07-24 11:52:34,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-24 11:52:34,046 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:34,046 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:52:34,047 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 11:52:34,047 INFO L82 PathProgramCache]: Analyzing trace with hash 1846143238, now seen corresponding path program 1 times [2018-07-24 11:52:34,047 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:34,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:34,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:34,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:34,049 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:34,258 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:34,259 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:52:34,259 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 11:52:34,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:34,276 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:52:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:34,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:52:34,549 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:34,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:52:34,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:34,807 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 11:52:34,808 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 11:52:34,808 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:34,809 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:52:34,809 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:52:34,809 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:52:34,810 INFO L87 Difference]: Start difference. First operand 3241 states and 5443 transitions. Second operand 3 states. [2018-07-24 11:52:41,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:52:41,869 INFO L93 Difference]: Finished difference Result 9583 states and 16328 transitions. [2018-07-24 11:52:41,870 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:52:41,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2018-07-24 11:52:41,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:52:41,902 INFO L225 Difference]: With dead ends: 9583 [2018-07-24 11:52:41,902 INFO L226 Difference]: Without dead ends: 4757 [2018-07-24 11:52:41,920 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 179 SyntacticMatches, 3 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:52:41,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4757 states. [2018-07-24 11:52:42,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4757 to 4757. [2018-07-24 11:52:42,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4757 states. [2018-07-24 11:52:42,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4757 states to 4757 states and 6798 transitions. [2018-07-24 11:52:42,078 INFO L78 Accepts]: Start accepts. Automaton has 4757 states and 6798 transitions. Word has length 90 [2018-07-24 11:52:42,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:42,079 INFO L471 AbstractCegarLoop]: Abstraction has 4757 states and 6798 transitions. [2018-07-24 11:52:42,081 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:52:42,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4757 states and 6798 transitions. [2018-07-24 11:52:42,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2018-07-24 11:52:42,086 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:42,086 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:52:42,086 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 11:52:42,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1537946655, now seen corresponding path program 1 times [2018-07-24 11:52:42,087 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:42,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:42,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:42,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:42,093 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:42,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:42,378 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:52:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:42,600 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:52:42,600 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:52:42,601 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:42,601 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:52:42,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:52:42,602 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:52:42,602 INFO L87 Difference]: Start difference. First operand 4757 states and 6798 transitions. Second operand 5 states. [2018-07-24 11:52:50,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:52:50,232 INFO L93 Difference]: Finished difference Result 12843 states and 19181 transitions. [2018-07-24 11:52:50,236 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:52:50,237 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2018-07-24 11:52:50,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:52:50,286 INFO L225 Difference]: With dead ends: 12843 [2018-07-24 11:52:50,287 INFO L226 Difference]: Without dead ends: 8092 [2018-07-24 11:52:50,303 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:52:50,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8092 states. [2018-07-24 11:52:50,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8092 to 8017. [2018-07-24 11:52:50,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8017 states. [2018-07-24 11:52:50,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 11767 transitions. [2018-07-24 11:52:50,518 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 11767 transitions. Word has length 99 [2018-07-24 11:52:50,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:52:50,519 INFO L471 AbstractCegarLoop]: Abstraction has 8017 states and 11767 transitions. [2018-07-24 11:52:50,519 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:52:50,519 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 11767 transitions. [2018-07-24 11:52:50,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-07-24 11:52:50,521 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:52:50,521 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:52:50,522 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 11:52:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash -597379437, now seen corresponding path program 1 times [2018-07-24 11:52:50,522 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:52:50,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:50,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:52:50,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:52:50,523 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:52:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:52:50,886 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:52:50,886 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:52:50,886 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:52:50,886 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:52:50,887 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:52:50,887 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:52:50,887 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:52:50,888 INFO L87 Difference]: Start difference. First operand 8017 states and 11767 transitions. Second operand 6 states. [2018-07-24 11:53:12,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:12,713 INFO L93 Difference]: Finished difference Result 32830 states and 55176 transitions. [2018-07-24 11:53:12,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 11:53:12,714 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-07-24 11:53:12,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:12,867 INFO L225 Difference]: With dead ends: 32830 [2018-07-24 11:53:12,867 INFO L226 Difference]: Without dead ends: 24819 [2018-07-24 11:53:12,950 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 11:53:12,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24819 states. [2018-07-24 11:53:13,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24819 to 24609. [2018-07-24 11:53:13,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24609 states. [2018-07-24 11:53:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24609 states to 24609 states and 35579 transitions. [2018-07-24 11:53:13,932 INFO L78 Accepts]: Start accepts. Automaton has 24609 states and 35579 transitions. Word has length 121 [2018-07-24 11:53:13,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:13,933 INFO L471 AbstractCegarLoop]: Abstraction has 24609 states and 35579 transitions. [2018-07-24 11:53:13,933 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:53:13,933 INFO L276 IsEmpty]: Start isEmpty. Operand 24609 states and 35579 transitions. [2018-07-24 11:53:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-24 11:53:13,936 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:13,936 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:53:13,937 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 11:53:13,937 INFO L82 PathProgramCache]: Analyzing trace with hash -450526830, now seen corresponding path program 1 times [2018-07-24 11:53:13,937 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:13,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:13,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:13,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:13,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:13,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:14,248 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:53:14,474 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-07-24 11:53:14,474 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:53:14,474 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 11:53:14,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:14,485 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:53:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:14,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:53:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:14,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:53:14,946 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:14,978 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 11:53:14,978 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 6 [2018-07-24 11:53:14,978 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:14,979 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:53:14,979 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:53:14,979 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:14,980 INFO L87 Difference]: Start difference. First operand 24609 states and 35579 transitions. Second operand 3 states. [2018-07-24 11:53:20,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:20,671 INFO L93 Difference]: Finished difference Result 70463 states and 108335 transitions. [2018-07-24 11:53:20,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:53:20,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2018-07-24 11:53:20,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:20,879 INFO L225 Difference]: With dead ends: 70463 [2018-07-24 11:53:20,880 INFO L226 Difference]: Without dead ends: 45860 [2018-07-24 11:53:20,974 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 328 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:21,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45860 states. [2018-07-24 11:53:22,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45860 to 45860. [2018-07-24 11:53:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45860 states. [2018-07-24 11:53:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45860 states to 45860 states and 64298 transitions. [2018-07-24 11:53:22,446 INFO L78 Accepts]: Start accepts. Automaton has 45860 states and 64298 transitions. Word has length 164 [2018-07-24 11:53:22,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:22,447 INFO L471 AbstractCegarLoop]: Abstraction has 45860 states and 64298 transitions. [2018-07-24 11:53:22,447 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:53:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 45860 states and 64298 transitions. [2018-07-24 11:53:22,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-07-24 11:53:22,450 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:22,451 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-24 11:53:22,451 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 11:53:22,451 INFO L82 PathProgramCache]: Analyzing trace with hash 1728446491, now seen corresponding path program 1 times [2018-07-24 11:53:22,451 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:22,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:22,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:22,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:22,453 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:22,766 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:53:22,851 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:22,851 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:53:22,852 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:53:22,852 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:22,852 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:53:22,853 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:53:22,853 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:53:22,853 INFO L87 Difference]: Start difference. First operand 45860 states and 64298 transitions. Second operand 6 states. [2018-07-24 11:53:31,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:31,846 INFO L93 Difference]: Finished difference Result 109343 states and 159320 transitions. [2018-07-24 11:53:31,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:53:31,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 213 [2018-07-24 11:53:31,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:32,105 INFO L225 Difference]: With dead ends: 109343 [2018-07-24 11:53:32,105 INFO L226 Difference]: Without dead ends: 63489 [2018-07-24 11:53:32,214 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:53:32,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63489 states. [2018-07-24 11:53:33,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63489 to 63443. [2018-07-24 11:53:33,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63443 states. [2018-07-24 11:53:33,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63443 states to 63443 states and 87225 transitions. [2018-07-24 11:53:33,606 INFO L78 Accepts]: Start accepts. Automaton has 63443 states and 87225 transitions. Word has length 213 [2018-07-24 11:53:33,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:33,607 INFO L471 AbstractCegarLoop]: Abstraction has 63443 states and 87225 transitions. [2018-07-24 11:53:33,607 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:53:33,607 INFO L276 IsEmpty]: Start isEmpty. Operand 63443 states and 87225 transitions. [2018-07-24 11:53:33,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-07-24 11:53:33,611 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:33,612 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:33,612 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 11:53:33,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1062729752, now seen corresponding path program 1 times [2018-07-24 11:53:33,612 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:33,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:33,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:33,613 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:33,613 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:33,941 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 8 proven. 96 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:33,941 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:53:33,941 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 11:53:33,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:33,951 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:53:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:34,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:53:34,156 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 11:53:34,156 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:53:34,227 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-07-24 11:53:34,248 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 11:53:34,248 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-07-24 11:53:34,249 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:34,249 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:53:34,249 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:53:34,249 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:53:34,250 INFO L87 Difference]: Start difference. First operand 63443 states and 87225 transitions. Second operand 3 states. [2018-07-24 11:53:41,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:41,175 INFO L93 Difference]: Finished difference Result 140826 states and 197649 transitions. [2018-07-24 11:53:41,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:53:41,175 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 254 [2018-07-24 11:53:41,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:41,422 INFO L225 Difference]: With dead ends: 140826 [2018-07-24 11:53:41,423 INFO L226 Difference]: Without dead ends: 77389 [2018-07-24 11:53:41,603 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 508 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:53:41,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77389 states. [2018-07-24 11:53:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77389 to 77389. [2018-07-24 11:53:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77389 states. [2018-07-24 11:53:44,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77389 states to 77389 states and 98678 transitions. [2018-07-24 11:53:44,119 INFO L78 Accepts]: Start accepts. Automaton has 77389 states and 98678 transitions. Word has length 254 [2018-07-24 11:53:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:44,120 INFO L471 AbstractCegarLoop]: Abstraction has 77389 states and 98678 transitions. [2018-07-24 11:53:44,120 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:53:44,120 INFO L276 IsEmpty]: Start isEmpty. Operand 77389 states and 98678 transitions. [2018-07-24 11:53:44,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2018-07-24 11:53:44,134 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:44,135 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:44,135 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:44,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1884401877, now seen corresponding path program 1 times [2018-07-24 11:53:44,136 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:44,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:44,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:44,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:44,137 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:44,560 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:53:45,152 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 15 proven. 74 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 11:53:45,152 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:53:45,153 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 11:53:45,170 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:45,170 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:53:45,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:45,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:53:45,706 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:45,706 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:53:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 158 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:46,121 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:53:46,121 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:53:46,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:46,149 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:53:46,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:46,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:53:46,689 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-07-24 11:53:46,690 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:53:47,044 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2018-07-24 11:53:47,046 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 11:53:47,047 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-07-24 11:53:47,047 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:53:47,048 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:53:47,048 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:53:47,049 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:53:47,049 INFO L87 Difference]: Start difference. First operand 77389 states and 98678 transitions. Second operand 5 states. [2018-07-24 11:53:53,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:53:53,957 INFO L93 Difference]: Finished difference Result 154211 states and 197201 transitions. [2018-07-24 11:53:53,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:53:53,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 351 [2018-07-24 11:53:53,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:53:54,208 INFO L225 Difference]: With dead ends: 154211 [2018-07-24 11:53:54,209 INFO L226 Difference]: Without dead ends: 77596 [2018-07-24 11:53:54,345 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1412 GetRequests, 1392 SyntacticMatches, 9 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 11:53:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77596 states. [2018-07-24 11:53:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77596 to 70669. [2018-07-24 11:53:55,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70669 states. [2018-07-24 11:53:55,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70669 states to 70669 states and 84010 transitions. [2018-07-24 11:53:55,477 INFO L78 Accepts]: Start accepts. Automaton has 70669 states and 84010 transitions. Word has length 351 [2018-07-24 11:53:55,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:53:55,478 INFO L471 AbstractCegarLoop]: Abstraction has 70669 states and 84010 transitions. [2018-07-24 11:53:55,478 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:53:55,478 INFO L276 IsEmpty]: Start isEmpty. Operand 70669 states and 84010 transitions. [2018-07-24 11:53:55,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2018-07-24 11:53:55,490 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:53:55,491 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:55,491 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:53:55,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1474613488, now seen corresponding path program 1 times [2018-07-24 11:53:55,492 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:53:55,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:55,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:55,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:53:55,493 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:53:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:56,068 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:56,068 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:53:56,068 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:53:56,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:56,076 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:53:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:56,209 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:53:56,329 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:56,329 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:53:57,241 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:57,262 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:53:57,262 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:53:57,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:53:57,278 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:53:57,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:53:57,578 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:53:57,711 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:57,711 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:53:57,950 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:53:57,952 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:53:57,953 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:53:57,953 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:53:57,954 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:53:57,954 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:53:57,954 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:53:57,955 INFO L87 Difference]: Start difference. First operand 70669 states and 84010 transitions. Second operand 9 states. [2018-07-24 11:54:13,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:13,404 INFO L93 Difference]: Finished difference Result 201200 states and 266303 transitions. [2018-07-24 11:54:13,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 11:54:13,404 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 354 [2018-07-24 11:54:13,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:13,804 INFO L225 Difference]: With dead ends: 201200 [2018-07-24 11:54:13,804 INFO L226 Difference]: Without dead ends: 131305 [2018-07-24 11:54:13,981 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1431 GetRequests, 1413 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:54:14,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131305 states. [2018-07-24 11:54:16,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131305 to 127702. [2018-07-24 11:54:16,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127702 states. [2018-07-24 11:54:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127702 states to 127702 states and 161175 transitions. [2018-07-24 11:54:16,665 INFO L78 Accepts]: Start accepts. Automaton has 127702 states and 161175 transitions. Word has length 354 [2018-07-24 11:54:16,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:16,666 INFO L471 AbstractCegarLoop]: Abstraction has 127702 states and 161175 transitions. [2018-07-24 11:54:16,666 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:54:16,666 INFO L276 IsEmpty]: Start isEmpty. Operand 127702 states and 161175 transitions. [2018-07-24 11:54:16,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 444 [2018-07-24 11:54:16,699 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:16,699 INFO L353 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:54:16,700 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:54:16,700 INFO L82 PathProgramCache]: Analyzing trace with hash -789168941, now seen corresponding path program 1 times [2018-07-24 11:54:16,700 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:16,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:16,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:16,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:16,701 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:17,343 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:54:17,343 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:54:17,344 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:54:17,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:17,352 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:54:17,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:17,512 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:54:19,472 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 14 proven. 13 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:54:19,472 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:54:19,890 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-07-24 11:54:19,911 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:54:19,912 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 9 [2018-07-24 11:54:19,912 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:54:19,913 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:54:19,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:54:19,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-07-24 11:54:19,913 INFO L87 Difference]: Start difference. First operand 127702 states and 161175 transitions. Second operand 3 states. [2018-07-24 11:54:28,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:28,200 INFO L93 Difference]: Finished difference Result 284911 states and 368145 transitions. [2018-07-24 11:54:28,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:54:28,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 443 [2018-07-24 11:54:28,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:28,706 INFO L225 Difference]: With dead ends: 284911 [2018-07-24 11:54:28,706 INFO L226 Difference]: Without dead ends: 157983 [2018-07-24 11:54:29,031 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 898 GetRequests, 887 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=23, Invalid=48, Unknown=1, NotChecked=0, Total=72 [2018-07-24 11:54:29,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157983 states. [2018-07-24 11:54:31,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157983 to 151763. [2018-07-24 11:54:31,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151763 states. [2018-07-24 11:54:31,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151763 states to 151763 states and 189711 transitions. [2018-07-24 11:54:31,949 INFO L78 Accepts]: Start accepts. Automaton has 151763 states and 189711 transitions. Word has length 443 [2018-07-24 11:54:31,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:54:31,950 INFO L471 AbstractCegarLoop]: Abstraction has 151763 states and 189711 transitions. [2018-07-24 11:54:31,950 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:54:31,950 INFO L276 IsEmpty]: Start isEmpty. Operand 151763 states and 189711 transitions. [2018-07-24 11:54:31,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2018-07-24 11:54:31,990 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:54:31,991 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:54:31,991 INFO L414 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:54:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1764558731, now seen corresponding path program 1 times [2018-07-24 11:54:31,991 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:54:31,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:31,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:31,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:54:31,992 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:54:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:32,664 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 216 proven. 261 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-07-24 11:54:32,664 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:54:32,664 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:54:32,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:32,674 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:54:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:32,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:54:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 535 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 11:54:33,915 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:54:34,277 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 221 proven. 91 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2018-07-24 11:54:34,297 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:54:34,298 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:54:34,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:54:34,314 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:54:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:54:34,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:54:34,870 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 530 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-24 11:54:34,870 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:54:35,216 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 218 proven. 178 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2018-07-24 11:54:35,218 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:54:35,218 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:54:35,218 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:54:35,220 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:54:35,220 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:54:35,220 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:54:35,220 INFO L87 Difference]: Start difference. First operand 151763 states and 189711 transitions. Second operand 9 states. [2018-07-24 11:54:56,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:54:56,148 INFO L93 Difference]: Finished difference Result 399707 states and 561415 transitions. [2018-07-24 11:54:56,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-07-24 11:54:56,148 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 537 [2018-07-24 11:54:56,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:54:56,966 INFO L225 Difference]: With dead ends: 399707 [2018-07-24 11:54:56,967 INFO L226 Difference]: Without dead ends: 248718 [2018-07-24 11:54:57,265 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2166 GetRequests, 2149 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:54:57,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248718 states. [2018-07-24 11:55:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248718 to 246425. [2018-07-24 11:55:06,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246425 states. [2018-07-24 11:55:08,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246425 states to 246425 states and 328333 transitions. [2018-07-24 11:55:08,515 INFO L78 Accepts]: Start accepts. Automaton has 246425 states and 328333 transitions. Word has length 537 [2018-07-24 11:55:08,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:08,516 INFO L471 AbstractCegarLoop]: Abstraction has 246425 states and 328333 transitions. [2018-07-24 11:55:08,516 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:55:08,516 INFO L276 IsEmpty]: Start isEmpty. Operand 246425 states and 328333 transitions. [2018-07-24 11:55:08,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 539 [2018-07-24 11:55:08,548 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:08,548 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:08,548 INFO L414 AbstractCegarLoop]: === Iteration 13 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:08,549 INFO L82 PathProgramCache]: Analyzing trace with hash 1833421768, now seen corresponding path program 1 times [2018-07-24 11:55:08,549 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:08,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:08,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:08,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:08,550 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:08,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:09,203 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 451 proven. 89 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 11:55:09,203 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:09,203 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:09,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:09,211 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:09,401 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:09,759 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-07-24 11:55:09,759 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:11,130 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-07-24 11:55:11,152 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:11,152 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 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:55:11,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:11,168 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:11,587 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-07-24 11:55:11,737 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 635 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 598 trivial. 0 not checked. [2018-07-24 11:55:11,938 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-07-24 11:55:11,938 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6, 5, 5] total 11 [2018-07-24 11:55:11,938 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:55:11,941 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:55:11,941 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:55:11,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:55:11,942 INFO L87 Difference]: Start difference. First operand 246425 states and 328333 transitions. Second operand 3 states. [2018-07-24 11:55:21,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:21,796 INFO L93 Difference]: Finished difference Result 482886 states and 643058 transitions. [2018-07-24 11:55:21,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:55:21,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 538 [2018-07-24 11:55:21,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:22,416 INFO L225 Difference]: With dead ends: 482886 [2018-07-24 11:55:22,416 INFO L226 Difference]: Without dead ends: 230769 [2018-07-24 11:55:22,861 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2158 GetRequests, 2147 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-07-24 11:55:23,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230769 states. [2018-07-24 11:55:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230769 to 230089. [2018-07-24 11:55:26,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230089 states. [2018-07-24 11:55:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230089 states to 230089 states and 276554 transitions. [2018-07-24 11:55:26,866 INFO L78 Accepts]: Start accepts. Automaton has 230089 states and 276554 transitions. Word has length 538 [2018-07-24 11:55:26,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:26,867 INFO L471 AbstractCegarLoop]: Abstraction has 230089 states and 276554 transitions. [2018-07-24 11:55:26,867 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:55:26,868 INFO L276 IsEmpty]: Start isEmpty. Operand 230089 states and 276554 transitions. [2018-07-24 11:55:27,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1019 [2018-07-24 11:55:27,149 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:27,151 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:27,151 INFO L414 AbstractCegarLoop]: === Iteration 14 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:27,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1735016445, now seen corresponding path program 1 times [2018-07-24 11:55:27,151 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:27,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:27,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:27,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:27,153 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:29,414 WARN L169 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 13 [2018-07-24 11:55:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 548 proven. 94 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:55:32,927 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:32,927 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:55:32,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:32,936 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:33,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 550 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 11:55:34,101 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 154 proven. 193 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-07-24 11:55:34,985 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:55:34,985 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 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:55:35,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:35,001 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:55:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:35,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:55:36,563 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 550 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 11:55:36,564 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:55:37,296 INFO L134 CoverageAnalysis]: Checked inductivity of 647 backedges. 154 proven. 193 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-07-24 11:55:37,298 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:55:37,299 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5, 5, 5] total 24 [2018-07-24 11:55:37,300 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:55:37,302 INFO L450 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-07-24 11:55:37,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-07-24 11:55:37,302 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2018-07-24 11:55:37,302 INFO L87 Difference]: Start difference. First operand 230089 states and 276554 transitions. Second operand 20 states. [2018-07-24 11:55:38,739 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2018-07-24 11:55:38,927 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 Received shutdown request... [2018-07-24 11:55:39,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 11:55:39,407 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:55:39,413 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:55:39,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:55:39 BoogieIcfgContainer [2018-07-24 11:55:39,414 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:55:39,415 INFO L168 Benchmark]: Toolchain (without parser) took 222721.99 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-07-24 11:55:39,416 INFO L168 Benchmark]: CDTParser took 0.21 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 11:55:39,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2233.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:55:39,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 237.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-24 11:55:39,418 INFO L168 Benchmark]: Boogie Preprocessor took 888.18 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 946.9 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 11:55:39,419 INFO L168 Benchmark]: RCFGBuilder took 10216.92 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 155.7 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -137.4 MB). Peak memory consumption was 738.0 MB. Max. memory is 7.1 GB. [2018-07-24 11:55:39,420 INFO L168 Benchmark]: TraceAbstraction took 209140.94 ms. Allocated memory was 2.6 GB in the beginning and 5.1 GB in the end (delta: 2.4 GB). Free memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: -81.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-07-24 11:55:39,424 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2233.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 237.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 888.18 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 946.9 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10216.92 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 155.7 MB). Free memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: -137.4 MB). Peak memory consumption was 738.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209140.94 ms. Allocated memory was 2.6 GB in the beginning and 5.1 GB in the end (delta: 2.4 GB). Free memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: -81.4 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 33]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 33). Cancelled while BasicCegarLoop was constructing difference of abstraction (230089states) and interpolant automaton (currently 10 states, 20 states before enhancement), while ReachableStatesComputation was computing reachable states (233 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 209.0s OverallTime, 14 OverallIterations, 5 TraceHistogramMax, 149.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7038 SDtfs, 30724 SDslu, 2013 SDs, 0 SdLazy, 58992 SolverSat, 13634 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 109.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13249 GetRequests, 13082 SyntacticMatches, 37 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246425occurred in iteration=12, 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: 28.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 20088 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.8s SatisfiabilityAnalysisTime, 20.9s InterpolantComputationTime, 10827 NumberOfCodeBlocks, 10827 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 17332 ConstructedInterpolants, 2 QuantifiedInterpolants, 37248721 SizeOfPredicates, 16 NumberOfNonLiveVariables, 10099 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 42 InterpolantComputations, 15 PerfectInterpolantSequences, 11235/12572 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/Problem12_label35_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-55-39-440.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label35_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-55-39-440.csv Completed graceful shutdown