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/Problem18_label42_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 15:03:29,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 15:03:29,059 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 15:03:29,074 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 15:03:29,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 15:03:29,075 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 15:03:29,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 15:03:29,078 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 15:03:29,079 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 15:03:29,080 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 15:03:29,081 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 15:03:29,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 15:03:29,082 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 15:03:29,083 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 15:03:29,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 15:03:29,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 15:03:29,086 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 15:03:29,088 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 15:03:29,090 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 15:03:29,091 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 15:03:29,092 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 15:03:29,094 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 15:03:29,096 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 15:03:29,096 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 15:03:29,097 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 15:03:29,098 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 15:03:29,099 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 15:03:29,101 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 15:03:29,102 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 15:03:29,107 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 15:03:29,107 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 15:03:29,108 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 15:03:29,108 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 15:03:29,108 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 15:03:29,109 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 15:03:29,110 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 15:03:29,110 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 15:03:29,141 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 15:03:29,142 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 15:03:29,144 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 15:03:29,144 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 15:03:29,144 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 15:03:29,144 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 15:03:29,145 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 15:03:29,145 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 15:03:29,145 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 15:03:29,145 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 15:03:29,146 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 15:03:29,147 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 15:03:29,147 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 15:03:29,147 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 15:03:29,147 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 15:03:29,148 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 15:03:29,149 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 15:03:29,149 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 15:03:29,149 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 15:03:29,149 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 15:03:29,149 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 15:03:29,150 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 15:03:29,150 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 15:03:29,150 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 15:03:29,150 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 15:03:29,150 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 15:03:29,151 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 15:03:29,151 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 15:03:29,151 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 15:03:29,151 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 15:03:29,153 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 15:03:29,153 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 15:03:29,153 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 15:03:29,208 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 15:03:29,225 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 15:03:29,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 15:03:29,234 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 15:03:29,234 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 15:03:29,235 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label42_true-unreach-call.c [2018-07-24 15:03:29,621 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7958e20a8/c53ec357add34f47b3579cc6a7c0193a/FLAG9ae24548f [2018-07-24 15:03:30,051 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 15:03:30,052 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label42_true-unreach-call.c [2018-07-24 15:03:30,081 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7958e20a8/c53ec357add34f47b3579cc6a7c0193a/FLAG9ae24548f [2018-07-24 15:03:30,099 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7958e20a8/c53ec357add34f47b3579cc6a7c0193a [2018-07-24 15:03:30,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 15:03:30,118 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 15:03:30,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 15:03:30,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 15:03:30,126 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 15:03:30,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:03:30" (1/1) ... [2018-07-24 15:03:30,132 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@781dbc58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:30, skipping insertion in model container [2018-07-24 15:03:30,132 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:03:30" (1/1) ... [2018-07-24 15:03:30,444 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 15:03:31,299 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 15:03:31,320 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 15:03:32,027 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 15:03:32,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32 WrapperNode [2018-07-24 15:03:32,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 15:03:32,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 15:03:32,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 15:03:32,196 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 15:03:32,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 15:03:32,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 15:03:32,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 15:03:32,372 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 15:03:32,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,795 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,904 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (1/1) ... [2018-07-24 15:03:32,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 15:03:32,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 15:03:32,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 15:03:32,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 15:03:32,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (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 15:03:33,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 15:03:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 15:03:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 15:03:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 15:03:33,059 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 15:03:33,059 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 15:03:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 15:03:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 15:03:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 15:03:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 15:03:33,060 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 15:03:33,060 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 15:03:41,448 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 15:03:41,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:03:41 BoogieIcfgContainer [2018-07-24 15:03:41,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 15:03:41,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 15:03:41,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 15:03:41,454 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 15:03:41,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 03:03:30" (1/3) ... [2018-07-24 15:03:41,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f16b773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:03:41, skipping insertion in model container [2018-07-24 15:03:41,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:03:32" (2/3) ... [2018-07-24 15:03:41,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f16b773 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:03:41, skipping insertion in model container [2018-07-24 15:03:41,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:03:41" (3/3) ... [2018-07-24 15:03:41,458 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label42_true-unreach-call.c [2018-07-24 15:03:41,468 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 15:03:41,478 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 15:03:41,540 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 15:03:41,541 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 15:03:41,541 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 15:03:41,541 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 15:03:41,542 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 15:03:41,542 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 15:03:41,542 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 15:03:41,542 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 15:03:41,542 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 15:03:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-07-24 15:03:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-24 15:03:41,602 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:03:41,603 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:03:41,604 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:03:41,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1064271796, now seen corresponding path program 1 times [2018-07-24 15:03:41,612 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:03:41,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:03:41,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:03:41,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:03:41,658 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:03:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:03:42,197 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 15:03:42,200 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:03:42,201 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 15:03:42,201 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:03:42,207 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 15:03:42,223 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 15:03:42,224 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 15:03:42,227 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-07-24 15:03:49,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:03:49,231 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-07-24 15:03:49,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 15:03:49,233 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2018-07-24 15:03:49,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:03:49,269 INFO L225 Difference]: With dead ends: 2251 [2018-07-24 15:03:49,270 INFO L226 Difference]: Without dead ends: 1474 [2018-07-24 15:03:49,282 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 15:03:49,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-07-24 15:03:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-07-24 15:03:49,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-07-24 15:03:49,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-07-24 15:03:49,439 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 56 [2018-07-24 15:03:49,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:03:49,440 INFO L471 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-07-24 15:03:49,440 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 15:03:49,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-07-24 15:03:49,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-07-24 15:03:49,449 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:03:49,450 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:03:49,450 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:03:49,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1282668505, now seen corresponding path program 1 times [2018-07-24 15:03:49,450 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:03:49,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:03:49,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:03:49,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:03:49,452 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:03:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:03:49,798 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:03:49,798 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:03:49,799 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:03:49,799 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:03:49,801 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:03:49,801 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:03:49,801 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:03:49,801 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-07-24 15:04:07,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:04:07,805 INFO L93 Difference]: Finished difference Result 5909 states and 11488 transitions. [2018-07-24 15:04:07,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 15:04:07,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-07-24 15:04:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:04:07,843 INFO L225 Difference]: With dead ends: 5909 [2018-07-24 15:04:07,843 INFO L226 Difference]: Without dead ends: 4441 [2018-07-24 15:04:07,858 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 15:04:07,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2018-07-24 15:04:07,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4399. [2018-07-24 15:04:07,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4399 states. [2018-07-24 15:04:08,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4399 states to 4399 states and 6698 transitions. [2018-07-24 15:04:08,014 INFO L78 Accepts]: Start accepts. Automaton has 4399 states and 6698 transitions. Word has length 131 [2018-07-24 15:04:08,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:04:08,014 INFO L471 AbstractCegarLoop]: Abstraction has 4399 states and 6698 transitions. [2018-07-24 15:04:08,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:04:08,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4399 states and 6698 transitions. [2018-07-24 15:04:08,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-07-24 15:04:08,023 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:04:08,023 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:04:08,023 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:04:08,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2054671631, now seen corresponding path program 1 times [2018-07-24 15:04:08,024 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:04:08,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:08,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:08,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:08,025 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:04:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:08,305 WARN L169 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 15:04:08,361 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 15:04:08,361 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:04:08,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:04:08,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:04:08,363 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:04:08,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:04:08,363 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:04:08,367 INFO L87 Difference]: Start difference. First operand 4399 states and 6698 transitions. Second operand 6 states. [2018-07-24 15:04:17,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:04:17,544 INFO L93 Difference]: Finished difference Result 13325 states and 20918 transitions. [2018-07-24 15:04:17,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 15:04:17,545 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-07-24 15:04:17,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:04:17,595 INFO L225 Difference]: With dead ends: 13325 [2018-07-24 15:04:17,596 INFO L226 Difference]: Without dead ends: 8932 [2018-07-24 15:04:17,626 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 15:04:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8932 states. [2018-07-24 15:04:17,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8932 to 8829. [2018-07-24 15:04:17,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8829 states. [2018-07-24 15:04:17,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 12820 transitions. [2018-07-24 15:04:17,877 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 12820 transitions. Word has length 151 [2018-07-24 15:04:17,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:04:17,878 INFO L471 AbstractCegarLoop]: Abstraction has 8829 states and 12820 transitions. [2018-07-24 15:04:17,878 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:04:17,878 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 12820 transitions. [2018-07-24 15:04:17,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-07-24 15:04:17,887 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:04:17,888 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 15:04:17,888 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:04:17,888 INFO L82 PathProgramCache]: Analyzing trace with hash 572433355, now seen corresponding path program 1 times [2018-07-24 15:04:17,888 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:04:17,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:17,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:17,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:17,890 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:04:17,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:18,215 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 15:04:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 15:04:18,349 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:04:18,349 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 15:04:18,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:18,358 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:04:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:18,463 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:04:18,833 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 15:04:18,834 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:04:19,647 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 15:04:19,670 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:04:19,670 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-07-24 15:04:19,670 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:04:19,671 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:04:19,671 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:04:19,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-07-24 15:04:19,671 INFO L87 Difference]: Start difference. First operand 8829 states and 12820 transitions. Second operand 5 states. [2018-07-24 15:04:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:04:26,979 INFO L93 Difference]: Finished difference Result 24528 states and 38096 transitions. [2018-07-24 15:04:26,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 15:04:26,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2018-07-24 15:04:26,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:04:27,098 INFO L225 Difference]: With dead ends: 24528 [2018-07-24 15:04:27,098 INFO L226 Difference]: Without dead ends: 15705 [2018-07-24 15:04:27,140 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-07-24 15:04:27,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15705 states. [2018-07-24 15:04:27,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15705 to 15509. [2018-07-24 15:04:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15509 states. [2018-07-24 15:04:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15509 states to 15509 states and 20795 transitions. [2018-07-24 15:04:27,574 INFO L78 Accepts]: Start accepts. Automaton has 15509 states and 20795 transitions. Word has length 201 [2018-07-24 15:04:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:04:27,575 INFO L471 AbstractCegarLoop]: Abstraction has 15509 states and 20795 transitions. [2018-07-24 15:04:27,575 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:04:27,575 INFO L276 IsEmpty]: Start isEmpty. Operand 15509 states and 20795 transitions. [2018-07-24 15:04:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-07-24 15:04:27,588 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:04:27,588 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 15:04:27,588 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:04:27,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1508941318, now seen corresponding path program 1 times [2018-07-24 15:04:27,589 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:04:27,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:27,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:27,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:27,590 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:04:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:28,194 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 224 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 15:04:28,194 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:04:28,195 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 15:04:28,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:28,210 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:04:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:28,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:04:28,814 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 15:04:28,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:04:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 224 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 15:04:29,102 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:04:29,102 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 15:04:29,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:29,260 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:04:29,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:29,499 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:04:29,710 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-24 15:04:29,711 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:04:30,389 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 224 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-07-24 15:04:30,396 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:04:30,396 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 15:04:30,396 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:04:30,398 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 15:04:30,398 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 15:04:30,398 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 15:04:30,398 INFO L87 Difference]: Start difference. First operand 15509 states and 20795 transitions. Second operand 9 states. [2018-07-24 15:04:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:04:43,753 INFO L93 Difference]: Finished difference Result 63357 states and 100733 transitions. [2018-07-24 15:04:43,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 15:04:43,759 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 328 [2018-07-24 15:04:43,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:04:44,091 INFO L225 Difference]: With dead ends: 63357 [2018-07-24 15:04:44,091 INFO L226 Difference]: Without dead ends: 36665 [2018-07-24 15:04:44,401 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1311 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-07-24 15:04:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36665 states. [2018-07-24 15:04:45,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36665 to 35578. [2018-07-24 15:04:45,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35578 states. [2018-07-24 15:04:45,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35578 states to 35578 states and 44823 transitions. [2018-07-24 15:04:45,640 INFO L78 Accepts]: Start accepts. Automaton has 35578 states and 44823 transitions. Word has length 328 [2018-07-24 15:04:45,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:04:45,643 INFO L471 AbstractCegarLoop]: Abstraction has 35578 states and 44823 transitions. [2018-07-24 15:04:45,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 15:04:45,643 INFO L276 IsEmpty]: Start isEmpty. Operand 35578 states and 44823 transitions. [2018-07-24 15:04:45,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2018-07-24 15:04:45,662 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:04:45,662 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 15:04:45,662 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:04:45,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1195616641, now seen corresponding path program 1 times [2018-07-24 15:04:45,663 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:04:45,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:45,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:45,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:04:45,664 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:04:45,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-07-24 15:04:46,562 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:04:46,563 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 15:04:46,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:46,578 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:04:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:46,701 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:04:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-07-24 15:04:47,209 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:04:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-07-24 15:04:48,260 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:04:48,260 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 15:04:48,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:04:48,290 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:04:48,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:04:48,573 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:04:48,678 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-07-24 15:04:48,679 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:04:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-07-24 15:04:48,894 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:04:48,894 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 15:04:48,894 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:04:48,895 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 15:04:48,895 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 15:04:48,895 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 15:04:48,896 INFO L87 Difference]: Start difference. First operand 35578 states and 44823 transitions. Second operand 9 states. [2018-07-24 15:04:58,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:04:58,881 INFO L93 Difference]: Finished difference Result 93905 states and 161582 transitions. [2018-07-24 15:04:58,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 15:04:58,882 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 373 [2018-07-24 15:04:58,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:04:59,517 INFO L225 Difference]: With dead ends: 93905 [2018-07-24 15:04:59,517 INFO L226 Difference]: Without dead ends: 58338 [2018-07-24 15:05:00,590 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1514 GetRequests, 1490 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-07-24 15:05:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58338 states. [2018-07-24 15:05:02,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58338 to 54156. [2018-07-24 15:05:02,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54156 states. [2018-07-24 15:05:02,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54156 states to 54156 states and 82277 transitions. [2018-07-24 15:05:02,682 INFO L78 Accepts]: Start accepts. Automaton has 54156 states and 82277 transitions. Word has length 373 [2018-07-24 15:05:02,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:05:02,683 INFO L471 AbstractCegarLoop]: Abstraction has 54156 states and 82277 transitions. [2018-07-24 15:05:02,683 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 15:05:02,683 INFO L276 IsEmpty]: Start isEmpty. Operand 54156 states and 82277 transitions. [2018-07-24 15:05:02,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-07-24 15:05:02,696 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:05:02,696 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 15:05:02,696 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:05:02,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1984482973, now seen corresponding path program 1 times [2018-07-24 15:05:02,697 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:05:02,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:05:02,698 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:02,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:05:02,698 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:05:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:04,087 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 153 proven. 274 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 15:05:04,087 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:05:04,088 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 15:05:04,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:04,095 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:05:04,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:04,221 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:05:04,605 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2018-07-24 15:05:04,605 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:05:05,866 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 147 proven. 186 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-07-24 15:05:05,888 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:05:05,889 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 5] total 19 [2018-07-24 15:05:05,889 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:05:05,889 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:05:05,889 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:05:05,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-07-24 15:05:05,890 INFO L87 Difference]: Start difference. First operand 54156 states and 82277 transitions. Second operand 5 states. [2018-07-24 15:05:12,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:05:12,482 INFO L93 Difference]: Finished difference Result 116875 states and 177211 transitions. [2018-07-24 15:05:12,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:05:12,483 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 375 [2018-07-24 15:05:12,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:05:12,991 INFO L225 Difference]: With dead ends: 116875 [2018-07-24 15:05:12,991 INFO L226 Difference]: Without dead ends: 64219 [2018-07-24 15:05:14,059 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 746 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2018-07-24 15:05:14,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64219 states. [2018-07-24 15:05:15,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64219 to 63433. [2018-07-24 15:05:15,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63433 states. [2018-07-24 15:05:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63433 states to 63433 states and 94049 transitions. [2018-07-24 15:05:16,272 INFO L78 Accepts]: Start accepts. Automaton has 63433 states and 94049 transitions. Word has length 375 [2018-07-24 15:05:16,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:05:16,273 INFO L471 AbstractCegarLoop]: Abstraction has 63433 states and 94049 transitions. [2018-07-24 15:05:16,273 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:05:16,273 INFO L276 IsEmpty]: Start isEmpty. Operand 63433 states and 94049 transitions. [2018-07-24 15:05:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2018-07-24 15:05:16,322 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:05:16,322 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2018-07-24 15:05:16,323 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:05:16,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1724495178, now seen corresponding path program 1 times [2018-07-24 15:05:16,323 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:05:16,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:05:16,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:16,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:05:16,325 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:05:16,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:17,101 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-07-24 15:05:18,135 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 382 proven. 254 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-07-24 15:05:18,135 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:05:18,135 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:05:18,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:18,145 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:05:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:18,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:05:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:19,431 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:05:19,781 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:19,802 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:05:19,803 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 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 15:05:19,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:19,819 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:05:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:20,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:05:20,528 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:20,529 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:05:20,903 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:20,905 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:05:20,906 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 21 [2018-07-24 15:05:20,906 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:05:20,907 INFO L450 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-07-24 15:05:20,907 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-07-24 15:05:20,907 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-07-24 15:05:20,908 INFO L87 Difference]: Start difference. First operand 63433 states and 94049 transitions. Second operand 15 states. [2018-07-24 15:05:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:05:36,865 INFO L93 Difference]: Finished difference Result 139706 states and 225908 transitions. [2018-07-24 15:05:36,865 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-07-24 15:05:36,865 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 634 [2018-07-24 15:05:36,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:05:37,390 INFO L225 Difference]: With dead ends: 139706 [2018-07-24 15:05:37,391 INFO L226 Difference]: Without dead ends: 77773 [2018-07-24 15:05:37,732 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2613 GetRequests, 2556 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 707 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=504, Invalid=2576, Unknown=0, NotChecked=0, Total=3080 [2018-07-24 15:05:37,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77773 states. [2018-07-24 15:05:39,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77773 to 76901. [2018-07-24 15:05:39,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76901 states. [2018-07-24 15:05:40,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76901 states to 76901 states and 117245 transitions. [2018-07-24 15:05:40,259 INFO L78 Accepts]: Start accepts. Automaton has 76901 states and 117245 transitions. Word has length 634 [2018-07-24 15:05:40,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:05:40,261 INFO L471 AbstractCegarLoop]: Abstraction has 76901 states and 117245 transitions. [2018-07-24 15:05:40,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-07-24 15:05:40,261 INFO L276 IsEmpty]: Start isEmpty. Operand 76901 states and 117245 transitions. [2018-07-24 15:05:40,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2018-07-24 15:05:40,301 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:05:40,302 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 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] [2018-07-24 15:05:40,302 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:05:40,303 INFO L82 PathProgramCache]: Analyzing trace with hash 614293214, now seen corresponding path program 1 times [2018-07-24 15:05:40,303 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:05:40,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:05:40,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:40,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:05:40,304 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:05:40,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:40,976 WARN L169 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-07-24 15:05:42,802 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 474 proven. 171 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-07-24 15:05:42,803 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:05:42,803 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 15:05:42,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:42,825 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:05:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:43,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:05:43,290 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:43,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:05:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:43,725 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:05:43,725 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 15:05:43,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:05:43,741 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:05:44,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:05:44,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:05:45,112 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:45,113 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:05:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-07-24 15:05:45,706 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:05:45,706 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5, 5, 5] total 14 [2018-07-24 15:05:45,706 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:05:45,707 INFO L450 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-07-24 15:05:45,708 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-07-24 15:05:45,708 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-07-24 15:05:45,708 INFO L87 Difference]: Start difference. First operand 76901 states and 117245 transitions. Second operand 13 states. [2018-07-24 15:06:08,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:06:08,044 INFO L93 Difference]: Finished difference Result 170477 states and 295010 transitions. [2018-07-24 15:06:08,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-07-24 15:06:08,045 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 640 [2018-07-24 15:06:08,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:06:08,647 INFO L225 Difference]: With dead ends: 170477 [2018-07-24 15:06:08,648 INFO L226 Difference]: Without dead ends: 79622 [2018-07-24 15:06:09,220 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2658 GetRequests, 2596 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=749, Invalid=2673, Unknown=0, NotChecked=0, Total=3422 [2018-07-24 15:06:09,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79622 states. [2018-07-24 15:06:11,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79622 to 78137. [2018-07-24 15:06:11,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78137 states. [2018-07-24 15:06:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78137 states to 78137 states and 117166 transitions. [2018-07-24 15:06:12,152 INFO L78 Accepts]: Start accepts. Automaton has 78137 states and 117166 transitions. Word has length 640 [2018-07-24 15:06:12,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:06:12,153 INFO L471 AbstractCegarLoop]: Abstraction has 78137 states and 117166 transitions. [2018-07-24 15:06:12,153 INFO L472 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-07-24 15:06:12,153 INFO L276 IsEmpty]: Start isEmpty. Operand 78137 states and 117166 transitions. [2018-07-24 15:06:12,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2018-07-24 15:06:12,177 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:06:12,178 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:06:12,178 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:06:12,178 INFO L82 PathProgramCache]: Analyzing trace with hash 57856317, now seen corresponding path program 1 times [2018-07-24 15:06:12,179 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:06:12,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:06:12,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:06:12,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:06:12,180 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:06:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:06:12,835 WARN L169 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 15:06:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 211 proven. 374 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-07-24 15:06:13,581 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:06:13,581 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 15:06:13,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:06:13,589 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:06:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:06:13,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:06:14,726 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2018-07-24 15:06:14,726 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:06:15,350 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 196 proven. 304 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-07-24 15:06:15,371 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:06:15,372 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 12 [2018-07-24 15:06:15,372 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:06:15,373 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:06:15,373 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:06:15,373 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-07-24 15:06:15,373 INFO L87 Difference]: Start difference. First operand 78137 states and 117166 transitions. Second operand 5 states. [2018-07-24 15:06:25,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:06:25,218 INFO L93 Difference]: Finished difference Result 178063 states and 276793 transitions. [2018-07-24 15:06:25,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:06:25,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 683 [2018-07-24 15:06:25,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:06:25,781 INFO L225 Difference]: With dead ends: 178063 [2018-07-24 15:06:25,781 INFO L226 Difference]: Without dead ends: 100678 [2018-07-24 15:06:26,146 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1360 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-07-24 15:06:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100678 states. [2018-07-24 15:06:28,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100678 to 98438. [2018-07-24 15:06:28,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98438 states. [2018-07-24 15:06:29,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98438 states to 98438 states and 151299 transitions. [2018-07-24 15:06:29,092 INFO L78 Accepts]: Start accepts. Automaton has 98438 states and 151299 transitions. Word has length 683 [2018-07-24 15:06:29,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:06:29,093 INFO L471 AbstractCegarLoop]: Abstraction has 98438 states and 151299 transitions. [2018-07-24 15:06:29,093 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 15:06:29,093 INFO L276 IsEmpty]: Start isEmpty. Operand 98438 states and 151299 transitions. [2018-07-24 15:06:29,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2018-07-24 15:06:29,133 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:06:29,134 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:06:29,134 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:06:29,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1650102093, now seen corresponding path program 1 times [2018-07-24 15:06:29,135 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:06:29,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:06:29,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:06:29,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:06:29,136 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:06:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:06:34,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 337 proven. 1040 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-07-24 15:06:34,091 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:06:34,091 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:06:34,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:06:34,098 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:06:34,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:06:34,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:06:35,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 983 proven. 2 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2018-07-24 15:06:35,606 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:06:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 515 proven. 192 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2018-07-24 15:06:37,755 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:06:37,755 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 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 15:06:37,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:06:37,771 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:06:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:06:38,623 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:06:39,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 983 proven. 2 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2018-07-24 15:06:39,399 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:06:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 515 proven. 192 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2018-07-24 15:06:40,899 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 15:06:40,901 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 5, 5, 5, 5] total 33 [2018-07-24 15:06:40,901 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 15:06:40,903 INFO L450 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-07-24 15:06:40,904 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-07-24 15:06:40,904 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2018-07-24 15:06:40,904 INFO L87 Difference]: Start difference. First operand 98438 states and 151299 transitions. Second operand 26 states. [2018-07-24 15:06:58,196 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 15:07:01,535 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-07-24 15:07:06,009 WARN L169 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 15 Received shutdown request... [2018-07-24 15:07:06,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2018-07-24 15:07:06,773 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 15:07:06,779 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 15:07:06,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:07:06 BoogieIcfgContainer [2018-07-24 15:07:06,780 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 15:07:06,780 INFO L168 Benchmark]: Toolchain (without parser) took 216666.00 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-07-24 15:07:06,782 INFO L168 Benchmark]: CDTParser took 0.22 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 15:07:06,782 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2076.33 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: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. [2018-07-24 15:07:06,783 INFO L168 Benchmark]: Boogie Procedure Inliner took 175.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-24 15:07:06,784 INFO L168 Benchmark]: Boogie Preprocessor took 613.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 859.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2018-07-24 15:07:06,786 INFO L168 Benchmark]: RCFGBuilder took 8463.93 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 535.0 MB). Peak memory consumption was 535.0 MB. Max. memory is 7.1 GB. [2018-07-24 15:07:06,786 INFO L168 Benchmark]: TraceAbstraction took 205329.58 ms. Allocated memory was 2.4 GB in the beginning and 4.7 GB in the end (delta: 2.3 GB). Free memory was 1.8 GB in the beginning and 2.7 GB in the end (delta: -981.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-07-24 15:07:06,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2076.33 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: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 175.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 613.08 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 859.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8463.93 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 535.0 MB). Peak memory consumption was 535.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205329.58 ms. Allocated memory was 2.4 GB in the beginning and 4.7 GB in the end (delta: 2.3 GB). Free memory was 1.8 GB in the beginning and 2.7 GB in the end (delta: -981.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 156]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 156). Cancelled while BasicCegarLoop was constructing difference of abstraction (98438states) and interpolant automaton (currently 108 states, 26 states before enhancement), while ReachableStatesComputation was computing reachable states (40779 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 205.2s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 152.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1269 SDtfs, 61756 SDslu, 3331 SDs, 0 SdLazy, 90567 SolverSat, 16655 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 101.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15753 GetRequests, 15380 SyntacticMatches, 33 SemanticMatches, 340 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7982 ImplicationChecksByTransitivity, 17.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=98438occurred in iteration=10, 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: 14.9s AutomataMinimizationTime, 10 MinimizatonAttempts, 10993 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 26.4s InterpolantComputationTime, 12414 NumberOfCodeBlocks, 12414 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 20008 ConstructedInterpolants, 0 QuantifiedInterpolants, 47407748 SizeOfPredicates, 9 NumberOfNonLiveVariables, 11120 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 37 InterpolantComputations, 6 PerfectInterpolantSequences, 19683/23053 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/Problem18_label42_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_15-07-06-804.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label42_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_15-07-06-804.csv Completed graceful shutdown