java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -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 0.1.23-3142e50-m [2018-09-10 12:39:16,760 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 12:39:16,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 12:39:16,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 12:39:16,776 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 12:39:16,777 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 12:39:16,778 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 12:39:16,780 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 12:39:16,781 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 12:39:16,782 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 12:39:16,783 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 12:39:16,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 12:39:16,784 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 12:39:16,785 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 12:39:16,787 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 12:39:16,787 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 12:39:16,788 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 12:39:16,790 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 12:39:16,792 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 12:39:16,794 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 12:39:16,795 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 12:39:16,797 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 12:39:16,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 12:39:16,805 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 12:39:16,805 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 12:39:16,809 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 12:39:16,810 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 12:39:16,811 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 12:39:16,815 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 12:39:16,816 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 12:39:16,819 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 12:39:16,821 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 12:39:16,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 12:39:16,822 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 12:39:16,824 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 12:39:16,825 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 12:39:16,825 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 [2018-09-10 12:39:16,855 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 12:39:16,856 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 12:39:16,857 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 12:39:16,857 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 12:39:16,857 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 12:39:16,857 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 12:39:16,858 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 12:39:16,858 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 12:39:16,858 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 12:39:16,858 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 12:39:16,858 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 12:39:16,859 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 12:39:16,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 12:39:16,860 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 12:39:16,860 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 12:39:16,860 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 12:39:16,860 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 12:39:16,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 12:39:16,860 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 12:39:16,861 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 12:39:16,861 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 12:39:16,861 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 12:39:16,861 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 12:39:16,861 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 12:39:16,862 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 12:39:16,862 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 12:39:16,862 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 12:39:16,862 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 12:39:16,863 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 12:39:16,863 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 12:39:16,863 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 12:39:16,863 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 12:39:16,863 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 12:39:16,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 12:39:16,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 12:39:16,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 12:39:16,968 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 12:39:16,968 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 12:39:16,969 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label42_true-unreach-call.c [2018-09-10 12:39:17,341 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3195c1ce8/50363f98169c48a38019b2bfcaa4472b/FLAG6c4177cb3 [2018-09-10 12:39:17,763 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 12:39:17,764 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label42_true-unreach-call.c [2018-09-10 12:39:17,791 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3195c1ce8/50363f98169c48a38019b2bfcaa4472b/FLAG6c4177cb3 [2018-09-10 12:39:17,808 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3195c1ce8/50363f98169c48a38019b2bfcaa4472b [2018-09-10 12:39:17,822 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 12:39:17,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 12:39:17,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 12:39:17,827 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 12:39:17,836 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 12:39:17,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:39:17" (1/1) ... [2018-09-10 12:39:17,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e987693 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:17, skipping insertion in model container [2018-09-10 12:39:17,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 12:39:17" (1/1) ... [2018-09-10 12:39:18,217 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 12:39:19,289 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:39:19,308 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 12:39:19,772 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 12:39:19,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19 WrapperNode [2018-09-10 12:39:19,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 12:39:19,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 12:39:19,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 12:39:19,946 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 12:39:19,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,174 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 12:39:20,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 12:39:20,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 12:39:20,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 12:39:20,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,628 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,764 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,864 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (1/1) ... [2018-09-10 12:39:20,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 12:39:20,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 12:39:20,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 12:39:20,909 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 12:39:20,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (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 [2018-09-10 12:39:20,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 12:39:20,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 12:39:20,981 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 [2018-09-10 12:39:20,981 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 [2018-09-10 12:39:20,982 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 [2018-09-10 12:39:20,982 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 [2018-09-10 12:39:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 12:39:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 12:39:20,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 12:39:20,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 12:39:20,983 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 [2018-09-10 12:39:20,984 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 [2018-09-10 12:39:29,001 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 12:39:29,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:39:29 BoogieIcfgContainer [2018-09-10 12:39:29,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 12:39:29,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 12:39:29,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 12:39:29,008 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 12:39:29,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 12:39:17" (1/3) ... [2018-09-10 12:39:29,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58342e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:39:29, skipping insertion in model container [2018-09-10 12:39:29,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 12:39:19" (2/3) ... [2018-09-10 12:39:29,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58342e0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 12:39:29, skipping insertion in model container [2018-09-10 12:39:29,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 12:39:29" (3/3) ... [2018-09-10 12:39:29,015 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label42_true-unreach-call.c [2018-09-10 12:39:29,027 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 12:39:29,038 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 12:39:29,102 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 12:39:29,103 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 12:39:29,103 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 12:39:29,103 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 12:39:29,103 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 12:39:29,103 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 12:39:29,104 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 12:39:29,104 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 12:39:29,104 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 12:39:29,153 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-10 12:39:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-10 12:39:29,166 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:29,167 INFO L376 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] [2018-09-10 12:39:29,169 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:39:29,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1064271796, now seen corresponding path program 1 times [2018-09-10 12:39:29,178 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:29,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:29,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:29,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:29,239 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:39:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:29,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:39:29,685 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:39:29,686 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 12:39:29,686 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:39:29,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 12:39:29,709 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 12:39:29,710 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:39:29,713 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-09-10 12:39:36,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:39:36,542 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-09-10 12:39:36,543 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 12:39:36,544 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2018-09-10 12:39:36,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:39:36,574 INFO L225 Difference]: With dead ends: 2251 [2018-09-10 12:39:36,574 INFO L226 Difference]: Without dead ends: 1474 [2018-09-10 12:39:36,585 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 12:39:36,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-09-10 12:39:36,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-09-10 12:39:36,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-10 12:39:36,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2801 transitions. [2018-09-10 12:39:36,758 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2801 transitions. Word has length 56 [2018-09-10 12:39:36,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:39:36,759 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2801 transitions. [2018-09-10 12:39:36,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 12:39:36,759 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2801 transitions. [2018-09-10 12:39:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-10 12:39:36,773 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:36,773 INFO L376 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] [2018-09-10 12:39:36,773 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:39:36,774 INFO L82 PathProgramCache]: Analyzing trace with hash 1282668505, now seen corresponding path program 1 times [2018-09-10 12:39:36,774 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:36,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:36,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:36,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:36,776 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:39:36,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:37,125 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:39:37,126 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:39:37,126 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:39:37,126 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:39:37,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:39:37,128 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:39:37,128 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:39:37,129 INFO L87 Difference]: Start difference. First operand 1474 states and 2801 transitions. Second operand 6 states. [2018-09-10 12:39:53,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:39:53,097 INFO L93 Difference]: Finished difference Result 5909 states and 11488 transitions. [2018-09-10 12:39:53,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-10 12:39:53,098 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-09-10 12:39:53,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:39:53,129 INFO L225 Difference]: With dead ends: 5909 [2018-09-10 12:39:53,130 INFO L226 Difference]: Without dead ends: 4441 [2018-09-10 12:39:53,144 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:39:53,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4441 states. [2018-09-10 12:39:53,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4441 to 4399. [2018-09-10 12:39:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4399 states. [2018-09-10 12:39:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4399 states to 4399 states and 6698 transitions. [2018-09-10 12:39:53,298 INFO L78 Accepts]: Start accepts. Automaton has 4399 states and 6698 transitions. Word has length 131 [2018-09-10 12:39:53,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:39:53,298 INFO L480 AbstractCegarLoop]: Abstraction has 4399 states and 6698 transitions. [2018-09-10 12:39:53,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:39:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 4399 states and 6698 transitions. [2018-09-10 12:39:53,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2018-09-10 12:39:53,306 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:39:53,306 INFO L376 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] [2018-09-10 12:39:53,306 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:39:53,307 INFO L82 PathProgramCache]: Analyzing trace with hash -2054671631, now seen corresponding path program 1 times [2018-09-10 12:39:53,307 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:39:53,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:53,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:39:53,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:39:53,308 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:39:53,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:39:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 12:39:53,584 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 12:39:53,586 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 12:39:53,586 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:39:53,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 12:39:53,587 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 12:39:53,588 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 12:39:53,588 INFO L87 Difference]: Start difference. First operand 4399 states and 6698 transitions. Second operand 6 states. [2018-09-10 12:40:02,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:02,708 INFO L93 Difference]: Finished difference Result 13325 states and 20918 transitions. [2018-09-10 12:40:02,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:40:02,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2018-09-10 12:40:02,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:02,763 INFO L225 Difference]: With dead ends: 13325 [2018-09-10 12:40:02,763 INFO L226 Difference]: Without dead ends: 8932 [2018-09-10 12:40:02,794 INFO L604 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 [2018-09-10 12:40:02,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8932 states. [2018-09-10 12:40:03,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8932 to 8829. [2018-09-10 12:40:03,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8829 states. [2018-09-10 12:40:03,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8829 states to 8829 states and 12820 transitions. [2018-09-10 12:40:03,028 INFO L78 Accepts]: Start accepts. Automaton has 8829 states and 12820 transitions. Word has length 151 [2018-09-10 12:40:03,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:03,029 INFO L480 AbstractCegarLoop]: Abstraction has 8829 states and 12820 transitions. [2018-09-10 12:40:03,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 12:40:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 8829 states and 12820 transitions. [2018-09-10 12:40:03,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-10 12:40:03,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:03,035 INFO L376 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] [2018-09-10 12:40:03,035 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash 572433355, now seen corresponding path program 1 times [2018-09-10 12:40:03,036 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:03,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:03,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:03,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:03,037 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:03,284 WARN L175 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 12:40:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:40:03,320 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:03,321 INFO L197 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 [2018-09-10 12:40:03,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:03,334 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:03,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:03,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:03,919 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-10 12:40:03,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:04,136 WARN L175 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 12:40:04,244 WARN L175 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 12:40:04,917 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:40:04,940 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:40:04,940 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-10 12:40:04,940 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:04,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:40:04,941 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:40:04,941 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2018-09-10 12:40:04,941 INFO L87 Difference]: Start difference. First operand 8829 states and 12820 transitions. Second operand 5 states. [2018-09-10 12:40:12,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:12,096 INFO L93 Difference]: Finished difference Result 24528 states and 38096 transitions. [2018-09-10 12:40:12,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 12:40:12,097 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2018-09-10 12:40:12,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:12,224 INFO L225 Difference]: With dead ends: 24528 [2018-09-10 12:40:12,224 INFO L226 Difference]: Without dead ends: 15705 [2018-09-10 12:40:12,263 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 397 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2018-09-10 12:40:12,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15705 states. [2018-09-10 12:40:12,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15705 to 15509. [2018-09-10 12:40:12,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15509 states. [2018-09-10 12:40:12,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15509 states to 15509 states and 20795 transitions. [2018-09-10 12:40:12,685 INFO L78 Accepts]: Start accepts. Automaton has 15509 states and 20795 transitions. Word has length 201 [2018-09-10 12:40:12,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:12,686 INFO L480 AbstractCegarLoop]: Abstraction has 15509 states and 20795 transitions. [2018-09-10 12:40:12,686 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:40:12,686 INFO L276 IsEmpty]: Start isEmpty. Operand 15509 states and 20795 transitions. [2018-09-10 12:40:12,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-09-10 12:40:12,698 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:12,699 INFO L376 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] [2018-09-10 12:40:12,699 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:12,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1508941318, now seen corresponding path program 1 times [2018-09-10 12:40:12,700 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:12,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:12,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:12,701 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:12,701 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:13,268 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 224 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:40:13,268 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:13,268 INFO L197 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 [2018-09-10 12:40:13,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:13,287 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:13,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:13,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:13,873 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-10 12:40:13,873 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:14,393 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 224 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:40:14,415 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:14,415 INFO L197 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 [2018-09-10 12:40:14,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:14,431 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:14,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:14,661 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:15,051 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 318 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-10 12:40:15,052 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:15,545 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 224 proven. 73 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-09-10 12:40:15,547 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:40:15,548 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 12:40:15,548 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:40:15,549 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:40:15,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:40:15,550 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 12:40:15,550 INFO L87 Difference]: Start difference. First operand 15509 states and 20795 transitions. Second operand 9 states. [2018-09-10 12:40:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:28,564 INFO L93 Difference]: Finished difference Result 63357 states and 100733 transitions. [2018-09-10 12:40:28,566 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-10 12:40:28,566 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 328 [2018-09-10 12:40:28,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:28,882 INFO L225 Difference]: With dead ends: 63357 [2018-09-10 12:40:28,882 INFO L226 Difference]: Without dead ends: 36665 [2018-09-10 12:40:29,239 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1334 GetRequests, 1311 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-10 12:40:29,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36665 states. [2018-09-10 12:40:30,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36665 to 35578. [2018-09-10 12:40:30,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35578 states. [2018-09-10 12:40:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35578 states to 35578 states and 44823 transitions. [2018-09-10 12:40:30,417 INFO L78 Accepts]: Start accepts. Automaton has 35578 states and 44823 transitions. Word has length 328 [2018-09-10 12:40:30,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:30,418 INFO L480 AbstractCegarLoop]: Abstraction has 35578 states and 44823 transitions. [2018-09-10 12:40:30,418 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:40:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 35578 states and 44823 transitions. [2018-09-10 12:40:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2018-09-10 12:40:30,435 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:30,435 INFO L376 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] [2018-09-10 12:40:30,436 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:30,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1195616641, now seen corresponding path program 1 times [2018-09-10 12:40:30,436 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:30,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:30,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:30,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:30,437 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:40:31,519 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:31,519 INFO L197 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 [2018-09-10 12:40:31,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:31,534 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:31,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:32,150 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:40:32,151 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:33,242 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:40:33,282 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:33,282 INFO L197 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 [2018-09-10 12:40:33,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:33,327 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:33,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:40:33,844 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:34,031 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2018-09-10 12:40:34,033 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:40:34,034 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 12:40:34,034 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:40:34,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 12:40:34,035 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 12:40:34,035 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:40:34,036 INFO L87 Difference]: Start difference. First operand 35578 states and 44823 transitions. Second operand 9 states. [2018-09-10 12:40:44,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:44,117 INFO L93 Difference]: Finished difference Result 93905 states and 161582 transitions. [2018-09-10 12:40:44,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 12:40:44,118 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 373 [2018-09-10 12:40:44,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:44,714 INFO L225 Difference]: With dead ends: 93905 [2018-09-10 12:40:44,714 INFO L226 Difference]: Without dead ends: 58338 [2018-09-10 12:40:45,614 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1514 GetRequests, 1490 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 12:40:45,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58338 states. [2018-09-10 12:40:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58338 to 54156. [2018-09-10 12:40:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54156 states. [2018-09-10 12:40:47,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54156 states to 54156 states and 82277 transitions. [2018-09-10 12:40:47,860 INFO L78 Accepts]: Start accepts. Automaton has 54156 states and 82277 transitions. Word has length 373 [2018-09-10 12:40:47,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:40:47,860 INFO L480 AbstractCegarLoop]: Abstraction has 54156 states and 82277 transitions. [2018-09-10 12:40:47,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 12:40:47,861 INFO L276 IsEmpty]: Start isEmpty. Operand 54156 states and 82277 transitions. [2018-09-10 12:40:47,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-09-10 12:40:47,872 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:40:47,872 INFO L376 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] [2018-09-10 12:40:47,873 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:40:47,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1984482973, now seen corresponding path program 1 times [2018-09-10 12:40:47,873 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:40:47,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:47,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:47,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:40:47,874 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:40:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:49,049 WARN L175 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-10 12:40:49,606 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 153 proven. 274 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 12:40:49,606 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:40:49,606 INFO L197 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 [2018-09-10 12:40:49,613 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:40:49,614 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:40:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:40:49,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:40:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2018-09-10 12:40:50,703 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:40:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 147 proven. 186 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-09-10 12:40:52,004 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:40:52,004 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 5] total 19 [2018-09-10 12:40:52,004 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:40:52,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:40:52,005 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:40:52,005 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2018-09-10 12:40:52,005 INFO L87 Difference]: Start difference. First operand 54156 states and 82277 transitions. Second operand 5 states. [2018-09-10 12:40:58,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:40:58,728 INFO L93 Difference]: Finished difference Result 116875 states and 177211 transitions. [2018-09-10 12:40:58,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:40:58,729 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 375 [2018-09-10 12:40:58,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:40:59,288 INFO L225 Difference]: With dead ends: 116875 [2018-09-10 12:40:59,289 INFO L226 Difference]: Without dead ends: 64219 [2018-09-10 12:40:59,693 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 746 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=74, Invalid=388, Unknown=0, NotChecked=0, Total=462 [2018-09-10 12:40:59,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64219 states. [2018-09-10 12:41:02,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64219 to 63433. [2018-09-10 12:41:02,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63433 states. [2018-09-10 12:41:02,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63433 states to 63433 states and 94049 transitions. [2018-09-10 12:41:02,640 INFO L78 Accepts]: Start accepts. Automaton has 63433 states and 94049 transitions. Word has length 375 [2018-09-10 12:41:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:02,641 INFO L480 AbstractCegarLoop]: Abstraction has 63433 states and 94049 transitions. [2018-09-10 12:41:02,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:41:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 63433 states and 94049 transitions. [2018-09-10 12:41:02,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 635 [2018-09-10 12:41:02,689 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:02,690 INFO L376 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] [2018-09-10 12:41:02,690 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:41:02,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1724495178, now seen corresponding path program 1 times [2018-09-10 12:41:02,691 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:02,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:02,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:02,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:02,693 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:03,421 WARN L175 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-09-10 12:41:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 382 proven. 254 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-10 12:41:04,430 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:04,430 INFO L197 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 [2018-09-10 12:41:04,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:04,437 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:04,636 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:04,874 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:05,944 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:05,965 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:05,966 INFO L197 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 [2018-09-10 12:41:05,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:05,982 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:06,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:06,653 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:06,653 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 467 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:07,050 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:41:07,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 21 [2018-09-10 12:41:07,051 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:41:07,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-10 12:41:07,053 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-10 12:41:07,053 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2018-09-10 12:41:07,053 INFO L87 Difference]: Start difference. First operand 63433 states and 94049 transitions. Second operand 15 states. [2018-09-10 12:41:22,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:22,206 INFO L93 Difference]: Finished difference Result 139706 states and 225908 transitions. [2018-09-10 12:41:22,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-10 12:41:22,206 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 634 [2018-09-10 12:41:22,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:23,574 INFO L225 Difference]: With dead ends: 139706 [2018-09-10 12:41:23,574 INFO L226 Difference]: Without dead ends: 77773 [2018-09-10 12:41:23,858 INFO L604 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 [2018-09-10 12:41:23,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77773 states. [2018-09-10 12:41:25,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77773 to 76901. [2018-09-10 12:41:25,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76901 states. [2018-09-10 12:41:26,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76901 states to 76901 states and 117245 transitions. [2018-09-10 12:41:26,475 INFO L78 Accepts]: Start accepts. Automaton has 76901 states and 117245 transitions. Word has length 634 [2018-09-10 12:41:26,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:26,485 INFO L480 AbstractCegarLoop]: Abstraction has 76901 states and 117245 transitions. [2018-09-10 12:41:26,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-10 12:41:26,485 INFO L276 IsEmpty]: Start isEmpty. Operand 76901 states and 117245 transitions. [2018-09-10 12:41:26,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 641 [2018-09-10 12:41:26,522 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:26,522 INFO L376 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] [2018-09-10 12:41:26,523 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:41:26,523 INFO L82 PathProgramCache]: Analyzing trace with hash 614293214, now seen corresponding path program 1 times [2018-09-10 12:41:26,523 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:26,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:26,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:26,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:26,525 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:27,131 WARN L175 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-09-10 12:41:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 474 proven. 171 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-10 12:41:29,212 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:29,212 INFO L197 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 [2018-09-10 12:41:29,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:29,223 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:29,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:29,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:29,834 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:29,834 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:30,272 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:30,295 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:30,295 INFO L197 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 [2018-09-10 12:41:30,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:30,311 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:30,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:30,756 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:31,402 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:31,402 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:41:31,732 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 476 proven. 2 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2018-09-10 12:41:31,735 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:41:31,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5, 5, 5] total 14 [2018-09-10 12:41:31,736 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:41:31,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-10 12:41:31,737 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-10 12:41:31,738 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2018-09-10 12:41:31,738 INFO L87 Difference]: Start difference. First operand 76901 states and 117245 transitions. Second operand 13 states. [2018-09-10 12:41:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:41:53,450 INFO L93 Difference]: Finished difference Result 170477 states and 295010 transitions. [2018-09-10 12:41:53,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-09-10 12:41:53,450 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 640 [2018-09-10 12:41:53,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:41:54,052 INFO L225 Difference]: With dead ends: 170477 [2018-09-10 12:41:54,053 INFO L226 Difference]: Without dead ends: 79622 [2018-09-10 12:41:54,679 INFO L604 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 [2018-09-10 12:41:54,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79622 states. [2018-09-10 12:41:57,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79622 to 78137. [2018-09-10 12:41:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78137 states. [2018-09-10 12:41:57,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78137 states to 78137 states and 117166 transitions. [2018-09-10 12:41:57,757 INFO L78 Accepts]: Start accepts. Automaton has 78137 states and 117166 transitions. Word has length 640 [2018-09-10 12:41:57,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:41:57,757 INFO L480 AbstractCegarLoop]: Abstraction has 78137 states and 117166 transitions. [2018-09-10 12:41:57,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-10 12:41:57,758 INFO L276 IsEmpty]: Start isEmpty. Operand 78137 states and 117166 transitions. [2018-09-10 12:41:57,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 684 [2018-09-10 12:41:57,783 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:41:57,783 INFO L376 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] [2018-09-10 12:41:57,784 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:41:57,784 INFO L82 PathProgramCache]: Analyzing trace with hash 57856317, now seen corresponding path program 1 times [2018-09-10 12:41:57,784 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:41:57,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:57,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:57,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:41:57,785 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:41:57,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:59,052 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 211 proven. 374 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2018-09-10 12:41:59,053 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:41:59,053 INFO L197 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 [2018-09-10 12:41:59,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:41:59,063 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:41:59,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:41:59,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:41:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2018-09-10 12:41:59,522 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:00,160 INFO L134 CoverageAnalysis]: Checked inductivity of 800 backedges. 196 proven. 304 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2018-09-10 12:42:00,181 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 12:42:00,181 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 6] total 12 [2018-09-10 12:42:00,182 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 12:42:00,182 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 12:42:00,182 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 12:42:00,183 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-10 12:42:00,183 INFO L87 Difference]: Start difference. First operand 78137 states and 117166 transitions. Second operand 5 states. [2018-09-10 12:42:09,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 12:42:09,682 INFO L93 Difference]: Finished difference Result 178063 states and 276793 transitions. [2018-09-10 12:42:09,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 12:42:09,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 683 [2018-09-10 12:42:09,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 12:42:10,363 INFO L225 Difference]: With dead ends: 178063 [2018-09-10 12:42:10,363 INFO L226 Difference]: Without dead ends: 100678 [2018-09-10 12:42:10,719 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1380 GetRequests, 1360 SyntacticMatches, 7 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-09-10 12:42:10,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100678 states. [2018-09-10 12:42:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100678 to 98438. [2018-09-10 12:42:13,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98438 states. [2018-09-10 12:42:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98438 states to 98438 states and 151299 transitions. [2018-09-10 12:42:13,598 INFO L78 Accepts]: Start accepts. Automaton has 98438 states and 151299 transitions. Word has length 683 [2018-09-10 12:42:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 12:42:13,599 INFO L480 AbstractCegarLoop]: Abstraction has 98438 states and 151299 transitions. [2018-09-10 12:42:13,599 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 12:42:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 98438 states and 151299 transitions. [2018-09-10 12:42:13,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1212 [2018-09-10 12:42:13,637 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 12:42:13,638 INFO L376 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] [2018-09-10 12:42:13,638 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 12:42:13,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1650102093, now seen corresponding path program 1 times [2018-09-10 12:42:13,639 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 12:42:13,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:13,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:13,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 12:42:13,640 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 12:42:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:18,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 337 proven. 1040 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-09-10 12:42:18,474 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:18,474 INFO L197 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 [2018-09-10 12:42:18,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:18,481 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:18,841 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 983 proven. 2 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2018-09-10 12:42:19,862 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 515 proven. 192 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2018-09-10 12:42:21,896 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 12:42:21,896 INFO L197 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 [2018-09-10 12:42:21,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 12:42:21,913 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 12:42:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 12:42:22,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 12:42:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 983 proven. 2 refuted. 0 times theorem prover too weak. 491 trivial. 0 not checked. [2018-09-10 12:42:23,747 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 12:42:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 515 proven. 192 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2018-09-10 12:42:25,052 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 12:42:25,054 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 5, 5, 5, 5] total 33 [2018-09-10 12:42:25,054 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 12:42:25,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2018-09-10 12:42:25,056 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2018-09-10 12:42:25,057 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=894, Unknown=0, NotChecked=0, Total=1056 [2018-09-10 12:42:25,057 INFO L87 Difference]: Start difference. First operand 98438 states and 151299 transitions. Second operand 26 states. [2018-09-10 12:42:41,720 WARN L175 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-10 12:42:45,229 WARN L175 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-10 12:42:49,682 WARN L175 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 15 Received shutdown request... [2018-09-10 12:42:55,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2018-09-10 12:42:55,403 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 12:42:55,410 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 12:42:55,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 12:42:55 BoogieIcfgContainer [2018-09-10 12:42:55,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 12:42:55,411 INFO L168 Benchmark]: Toolchain (without parser) took 217588.12 ms. Allocated memory was 1.5 GB in the beginning and 4.6 GB in the end (delta: 3.1 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.6 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-10 12:42:55,412 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 12:42:55,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2117.90 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: 158.5 MB). Peak memory consumption was 158.5 MB. Max. memory is 7.1 GB. [2018-09-10 12:42:55,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 229.52 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-10 12:42:55,414 INFO L168 Benchmark]: Boogie Preprocessor took 733.21 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 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 85.6 MB. Max. memory is 7.1 GB. [2018-09-10 12:42:55,415 INFO L168 Benchmark]: RCFGBuilder took 8094.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 545.3 MB). Peak memory consumption was 545.3 MB. Max. memory is 7.1 GB. [2018-09-10 12:42:55,415 INFO L168 Benchmark]: TraceAbstraction took 206406.35 ms. Allocated memory was 2.4 GB in the beginning and 4.6 GB in the end (delta: 2.2 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -495.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-10 12:42:55,420 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2117.90 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: 158.5 MB). Peak memory consumption was 158.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 229.52 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 733.21 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 856.7 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 85.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8094.08 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 545.3 MB). Peak memory consumption was 545.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206406.35 ms. Allocated memory was 2.4 GB in the beginning and 4.6 GB in the end (delta: 2.2 GB). Free memory was 1.7 GB in the beginning and 2.2 GB in the end (delta: -495.9 MB). Peak memory consumption was 1.7 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 FLOYD_HOARE automaton (currently 119 states, 26 states before enhancement), while ReachableStatesComputation was computing reachable states (63590 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 206.3s OverallTime, 11 OverallIterations, 6 TraceHistogramMax, 153.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1290 SDtfs, 64666 SDslu, 3478 SDs, 0 SdLazy, 94819 SolverSat, 17128 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15773 GetRequests, 15389 SyntacticMatches, 33 SemanticMatches, 351 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9134 ImplicationChecksByTransitivity, 19.8s 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: 15.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 10993 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 26.2s 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-0-2018-09-10_12-42-55-433.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-0-2018-09-10_12-42-55-433.csv Completed graceful shutdown