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/Problem17_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:51:55,701 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:51:55,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:51:55,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:51:55,716 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:51:55,717 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:51:55,718 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:51:55,721 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:51:55,723 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:51:55,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:51:55,725 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:51:55,726 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:51:55,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:51:55,727 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:51:55,729 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:51:55,729 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:51:55,730 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:51:55,732 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:51:55,734 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:51:55,736 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:51:55,737 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:51:55,738 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:51:55,741 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:51:55,741 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:51:55,741 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:51:55,742 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:51:55,743 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:51:55,744 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:51:55,745 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:51:55,746 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:51:55,746 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:51:55,747 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:51:55,747 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:51:55,747 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:51:55,748 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:51:55,749 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:51:55,749 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 14:51:55,765 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:51:55,765 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:51:55,766 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:51:55,766 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:51:55,766 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:51:55,767 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:51:55,767 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:51:55,767 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:51:55,767 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:51:55,767 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:51:55,768 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:51:55,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:51:55,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:51:55,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:51:55,769 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:51:55,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:51:55,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:51:55,769 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:51:55,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:51:55,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:51:55,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:51:55,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:51:55,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:51:55,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:51:55,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:51:55,771 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:51:55,771 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:51:55,771 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:51:55,772 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:51:55,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:51:55,772 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:51:55,772 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:51:55,772 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:51:55,814 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:51:55,833 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:51:55,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:51:55,843 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:51:55,843 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:51:55,844 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-07-24 14:51:56,186 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9741b96c/7a67464966c64be394b5df95f4dd2cb1/FLAG2c92e6278 [2018-07-24 14:51:56,593 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:51:56,594 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label24_true-unreach-call.c [2018-07-24 14:51:56,623 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9741b96c/7a67464966c64be394b5df95f4dd2cb1/FLAG2c92e6278 [2018-07-24 14:51:56,644 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9741b96c/7a67464966c64be394b5df95f4dd2cb1 [2018-07-24 14:51:56,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:51:56,660 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:51:56,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:51:56,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:51:56,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:51:56,676 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:51:56" (1/1) ... [2018-07-24 14:51:56,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c2495d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:56, skipping insertion in model container [2018-07-24 14:51:56,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:51:56" (1/1) ... [2018-07-24 14:51:56,966 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:51:57,696 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:51:57,714 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:51:58,107 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:51:58,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58 WrapperNode [2018-07-24 14:51:58,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:51:58,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:51:58,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:51:58,349 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:51:58,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:58,441 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:58,645 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:51:58,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:51:58,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:51:58,646 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:51:59,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... [2018-07-24 14:51:59,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:51:59,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:51:59,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:51:59,513 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:51:59,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:51:59,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:51:59,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:51:59,590 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 14:51:59,590 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 14:51:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:51:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:51:59,591 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:51:59,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:51:59,591 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 14:51:59,591 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 14:52:09,873 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:52:09,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:52:09 BoogieIcfgContainer [2018-07-24 14:52:09,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:52:09,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:52:09,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:52:09,879 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:52:09,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:51:56" (1/3) ... [2018-07-24 14:52:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce44f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:52:09, skipping insertion in model container [2018-07-24 14:52:09,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:51:58" (2/3) ... [2018-07-24 14:52:09,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce44f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:52:09, skipping insertion in model container [2018-07-24 14:52:09,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:52:09" (3/3) ... [2018-07-24 14:52:09,886 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label24_true-unreach-call.c [2018-07-24 14:52:09,896 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:52:09,910 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:52:10,000 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:52:10,001 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:52:10,001 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:52:10,001 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:52:10,002 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:52:10,002 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:52:10,002 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:52:10,002 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:52:10,002 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:52:10,057 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-24 14:52:10,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-24 14:52:10,068 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:52:10,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:52:10,070 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 14:52:10,076 INFO L82 PathProgramCache]: Analyzing trace with hash -641510175, now seen corresponding path program 1 times [2018-07-24 14:52:10,079 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:52:10,141 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:52:10,141 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:52:10,142 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:52:10,142 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:52:10,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:52:10,720 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-24 14:52:10,807 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 14:52:10,813 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:52:10,814 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:52:10,814 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:52:10,829 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:52:10,865 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:52:10,866 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:52:10,871 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-24 14:52:26,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:52:26,740 INFO L93 Difference]: Finished difference Result 2133 states and 3959 transitions. [2018-07-24 14:52:26,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:52:26,742 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 67 [2018-07-24 14:52:26,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:52:26,781 INFO L225 Difference]: With dead ends: 2133 [2018-07-24 14:52:26,782 INFO L226 Difference]: Without dead ends: 1523 [2018-07-24 14:52:26,799 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:52:26,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2018-07-24 14:52:26,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1516. [2018-07-24 14:52:26,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2018-07-24 14:52:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 2287 transitions. [2018-07-24 14:52:26,960 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 2287 transitions. Word has length 67 [2018-07-24 14:52:26,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:52:26,961 INFO L471 AbstractCegarLoop]: Abstraction has 1516 states and 2287 transitions. [2018-07-24 14:52:26,961 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:52:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 2287 transitions. [2018-07-24 14:52:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-07-24 14:52:26,973 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:52:26,974 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:52:26,974 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 14:52:26,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1683064495, now seen corresponding path program 1 times [2018-07-24 14:52:26,975 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:52:26,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:52:26,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:52:26,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:52:26,977 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:52:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:52:27,476 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:52:27,477 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:52:27,477 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 14:52:27,493 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:52:27,493 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:52:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:52:27,598 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:52:33,973 WARN L169 SmtUtils]: Spent 6.04 s on a formula simplification that was a NOOP. DAG size: 42 [2018-07-24 14:52:39,429 WARN L169 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2018-07-24 14:52:39,647 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 4 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:52:39,648 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:52:40,256 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-07-24 14:52:42,924 WARN L169 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-07-24 14:52:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:52:43,361 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:52:43,361 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-07-24 14:52:43,361 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:52:43,365 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:52:43,365 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:52:43,365 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2018-07-24 14:52:43,366 INFO L87 Difference]: Start difference. First operand 1516 states and 2287 transitions. Second operand 6 states. [2018-07-24 14:55:53,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:55:53,694 INFO L93 Difference]: Finished difference Result 3455 states and 5282 transitions. [2018-07-24 14:55:53,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:55:53,695 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-07-24 14:55:53,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:55:53,710 INFO L225 Difference]: With dead ends: 3455 [2018-07-24 14:55:53,710 INFO L226 Difference]: Without dead ends: 1945 [2018-07-24 14:55:53,718 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2018-07-24 14:55:53,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2018-07-24 14:55:53,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1657. [2018-07-24 14:55:53,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1657 states. [2018-07-24 14:55:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1657 states to 1657 states and 2496 transitions. [2018-07-24 14:55:53,778 INFO L78 Accepts]: Start accepts. Automaton has 1657 states and 2496 transitions. Word has length 142 [2018-07-24 14:55:53,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:55:53,779 INFO L471 AbstractCegarLoop]: Abstraction has 1657 states and 2496 transitions. [2018-07-24 14:55:53,779 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:55:53,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1657 states and 2496 transitions. [2018-07-24 14:55:53,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-07-24 14:55:53,785 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:55:53,786 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, 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] [2018-07-24 14:55:53,786 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 14:55:53,786 INFO L82 PathProgramCache]: Analyzing trace with hash -124817454, now seen corresponding path program 1 times [2018-07-24 14:55:53,786 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:55:53,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:55:53,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:55:53,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:55:53,788 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:55:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:55:54,122 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:55:54,657 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 54 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:55:54,657 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:55:54,657 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 14:55:54,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:55:54,670 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:55:54,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:55:54,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:55:54,896 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:55:54,896 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:55:55,229 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:55:55,259 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:55:55,260 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 14:55:55,260 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:55:55,260 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:55:55,261 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:55:55,261 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:55:55,264 INFO L87 Difference]: Start difference. First operand 1657 states and 2496 transitions. Second operand 3 states. [2018-07-24 14:56:00,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:56:00,511 INFO L93 Difference]: Finished difference Result 4740 states and 7407 transitions. [2018-07-24 14:56:00,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:56:00,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 155 [2018-07-24 14:56:00,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:56:00,535 INFO L225 Difference]: With dead ends: 4740 [2018-07-24 14:56:00,535 INFO L226 Difference]: Without dead ends: 3089 [2018-07-24 14:56:00,547 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 319 GetRequests, 309 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:56:00,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2018-07-24 14:56:00,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3063. [2018-07-24 14:56:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3063 states. [2018-07-24 14:56:00,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3063 states to 3063 states and 4602 transitions. [2018-07-24 14:56:00,642 INFO L78 Accepts]: Start accepts. Automaton has 3063 states and 4602 transitions. Word has length 155 [2018-07-24 14:56:00,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:56:00,643 INFO L471 AbstractCegarLoop]: Abstraction has 3063 states and 4602 transitions. [2018-07-24 14:56:00,643 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:56:00,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3063 states and 4602 transitions. [2018-07-24 14:56:00,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2018-07-24 14:56:00,647 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:56:00,647 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, 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] [2018-07-24 14:56:00,647 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 14:56:00,648 INFO L82 PathProgramCache]: Analyzing trace with hash -375589148, now seen corresponding path program 1 times [2018-07-24 14:56:00,648 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:56:00,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:00,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:00,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:00,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:56:00,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:00,904 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:00,904 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:56:00,904 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:56:00,905 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:56:00,905 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:56:00,905 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:56:00,906 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:56:00,906 INFO L87 Difference]: Start difference. First operand 3063 states and 4602 transitions. Second operand 6 states. [2018-07-24 14:56:07,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:56:07,552 INFO L93 Difference]: Finished difference Result 7672 states and 11918 transitions. [2018-07-24 14:56:07,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:56:07,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2018-07-24 14:56:07,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:56:07,582 INFO L225 Difference]: With dead ends: 7672 [2018-07-24 14:56:07,582 INFO L226 Difference]: Without dead ends: 4615 [2018-07-24 14:56:07,597 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:56:07,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2018-07-24 14:56:07,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 4565. [2018-07-24 14:56:07,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4565 states. [2018-07-24 14:56:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4565 states to 4565 states and 6337 transitions. [2018-07-24 14:56:07,739 INFO L78 Accepts]: Start accepts. Automaton has 4565 states and 6337 transitions. Word has length 164 [2018-07-24 14:56:07,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:56:07,739 INFO L471 AbstractCegarLoop]: Abstraction has 4565 states and 6337 transitions. [2018-07-24 14:56:07,739 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:56:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 4565 states and 6337 transitions. [2018-07-24 14:56:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-07-24 14:56:07,744 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:56:07,745 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, 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] [2018-07-24 14:56:07,745 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 14:56:07,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1429006325, now seen corresponding path program 1 times [2018-07-24 14:56:07,746 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:56:07,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:07,746 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:56:07,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:56:07,747 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:56:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:56:08,117 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:56:08,117 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:56:08,118 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:56:08,118 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:56:08,118 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:56:08,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:56:08,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:56:08,119 INFO L87 Difference]: Start difference. First operand 4565 states and 6337 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 14:56:24,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:56:24,515 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:56:24,520 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:56:24,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:56:24 BoogieIcfgContainer [2018-07-24 14:56:24,520 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:56:24,521 INFO L168 Benchmark]: Toolchain (without parser) took 267862.70 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -785.7 MB). Peak memory consumption was 483.6 MB. Max. memory is 7.1 GB. [2018-07-24 14:56:24,522 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 14:56:24,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1686.51 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:56:24,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 296.33 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:56:24,525 INFO L168 Benchmark]: Boogie Preprocessor took 867.24 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 935.9 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:56:24,525 INFO L168 Benchmark]: RCFGBuilder took 10361.42 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 500.2 MB). Peak memory consumption was 500.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:56:24,526 INFO L168 Benchmark]: TraceAbstraction took 254645.09 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 333.4 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -342.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:56:24,531 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 1686.51 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 296.33 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 867.24 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 935.9 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 123.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10361.42 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 500.2 MB). Peak memory consumption was 500.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 254645.09 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 333.4 MB). Free memory was 1.9 GB in the beginning and 2.2 GB in the end (delta: -342.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 188]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 188). Cancelled while BasicCegarLoop was constructing difference of abstraction (4565states) and interpolant automaton (currently 8 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (7590 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 254.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 234.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2680 SDtfs, 5741 SDslu, 1013 SDs, 0 SdLazy, 11597 SolverSat, 3415 SolverUnsat, 89 SolverUnknown, 0 SolverNotchecked, 229.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 636 GetRequests, 596 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 16.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4565occurred in iteration=4, 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: 0.4s AutomataMinimizationTime, 4 MinimizatonAttempts, 371 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 1030 NumberOfCodeBlocks, 1030 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1318 ConstructedInterpolants, 141 QuantifiedInterpolants, 1161369 SizeOfPredicates, 5 NumberOfNonLiveVariables, 605 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 9 InterpolantComputations, 6 PerfectInterpolantSequences, 358/480 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/Problem17_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-56-24-545.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-56-24-545.csv Completed graceful shutdown