java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:17:02,915 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:17:02,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:17:02,931 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:17:02,932 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:17:02,933 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:17:02,934 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:17:02,937 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:17:02,939 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:17:02,941 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:17:02,942 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:17:02,944 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:17:02,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:17:02,947 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:17:02,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:17:02,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:17:02,959 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:17:02,961 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:17:02,964 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:17:02,966 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:17:02,967 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:17:02,968 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:17:02,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:17:02,970 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:17:02,971 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:17:02,971 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:17:02,972 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:17:02,973 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:17:02,974 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:17:02,975 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:17:02,975 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:17:02,976 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:17:02,976 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:17:02,976 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:17:02,977 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:17:02,978 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:17:02,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 14:17:02,993 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:17:02,993 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:17:02,994 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:17:02,994 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:17:02,994 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:17:02,995 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:17:02,995 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:17:02,995 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:17:02,995 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:17:02,995 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:17:02,996 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:17:02,996 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:17:02,996 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:17:02,997 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:17:02,997 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:17:02,997 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:17:02,997 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:17:02,997 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:17:02,998 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:17:02,998 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:17:02,998 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:17:02,998 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:17:02,998 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:17:02,999 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:17:02,999 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:17:02,999 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:17:02,999 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:17:02,999 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:17:03,000 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:17:03,000 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:17:03,000 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:17:03,000 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:17:03,000 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:17:03,061 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:17:03,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:17:03,079 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:17:03,080 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:17:03,081 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:17:03,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-07-24 14:17:03,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ab4a2b7/0f8c64d3295a481cb6475b24ec864a86/FLAG90f78e7d9 [2018-07-24 14:17:03,910 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:17:03,911 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label09_true-unreach-call.c [2018-07-24 14:17:03,945 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ab4a2b7/0f8c64d3295a481cb6475b24ec864a86/FLAG90f78e7d9 [2018-07-24 14:17:03,962 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/23ab4a2b7/0f8c64d3295a481cb6475b24ec864a86 [2018-07-24 14:17:03,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:17:03,975 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:17:03,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:17:03,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:17:03,983 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:17:03,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:17:03" (1/1) ... [2018-07-24 14:17:03,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66d3f366 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:03, skipping insertion in model container [2018-07-24 14:17:03,989 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:17:03" (1/1) ... [2018-07-24 14:17:04,355 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:17:05,643 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:17:05,659 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:17:06,805 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:17:07,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07 WrapperNode [2018-07-24 14:17:07,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:17:07,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:17:07,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:17:07,185 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:17:07,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:07,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:07,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:17:07,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:17:07,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:17:07,522 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:17:08,364 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:08,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:08,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:08,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:08,675 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:08,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:08,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... [2018-07-24 14:17:09,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:17:09,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:17:09,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:17:09,004 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:17:09,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:17:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:17:09,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:17:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:17:09,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:17:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:17:09,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-07-24 14:17:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:17:09,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:17:09,080 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_output4 [2018-07-24 14:17:09,081 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_output4 [2018-07-24 14:17:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:17:09,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:17:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:17:09,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-24 14:17:20,964 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:17:20,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:17:20 BoogieIcfgContainer [2018-07-24 14:17:20,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:17:20,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:17:20,966 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:17:20,976 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:17:20,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:17:03" (1/3) ... [2018-07-24 14:17:20,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3502d996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:17:20, skipping insertion in model container [2018-07-24 14:17:20,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:17:07" (2/3) ... [2018-07-24 14:17:20,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3502d996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:17:20, skipping insertion in model container [2018-07-24 14:17:20,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:17:20" (3/3) ... [2018-07-24 14:17:20,979 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label09_true-unreach-call.c [2018-07-24 14:17:20,990 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:17:20,999 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:17:21,059 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:17:21,060 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:17:21,060 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:17:21,060 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:17:21,060 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:17:21,061 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:17:21,061 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:17:21,061 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:17:21,061 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:17:21,105 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:17:21,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-24 14:17:21,123 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:21,127 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:21,128 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:21,133 INFO L82 PathProgramCache]: Analyzing trace with hash -557421471, now seen corresponding path program 1 times [2018-07-24 14:17:21,135 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:21,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:21,185 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:21,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:21,186 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:21,675 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:17:21,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:21,837 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:21,837 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:17:21,837 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:21,843 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:17:21,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:17:21,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:21,861 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 14:17:33,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:33,652 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-24 14:17:33,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:17:33,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-07-24 14:17:33,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:33,694 INFO L225 Difference]: With dead ends: 3097 [2018-07-24 14:17:33,694 INFO L226 Difference]: Without dead ends: 1975 [2018-07-24 14:17:33,703 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:17:33,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-24 14:17:33,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-24 14:17:33,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-24 14:17:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-24 14:17:33,863 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 67 [2018-07-24 14:17:33,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:33,864 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-24 14:17:33,864 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:33,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-24 14:17:33,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-07-24 14:17:33,873 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:33,873 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:33,874 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:33,875 INFO L82 PathProgramCache]: Analyzing trace with hash -926627376, now seen corresponding path program 1 times [2018-07-24 14:17:33,875 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:33,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:33,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:33,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:33,876 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:33,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:34,179 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:34,179 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:34,180 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:17:34,180 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:34,182 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:17:34,182 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:17:34,182 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:17:34,183 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-24 14:17:53,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:53,185 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-07-24 14:17:53,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:17:53,186 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2018-07-24 14:17:53,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:53,214 INFO L225 Difference]: With dead ends: 5736 [2018-07-24 14:17:53,215 INFO L226 Difference]: Without dead ends: 3768 [2018-07-24 14:17:53,222 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:17:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-07-24 14:17:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-07-24 14:17:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-07-24 14:17:53,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-07-24 14:17:53,351 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 143 [2018-07-24 14:17:53,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:53,352 INFO L471 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-07-24 14:17:53,352 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:17:53,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-07-24 14:17:53,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-07-24 14:17:53,365 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:53,365 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:17:53,366 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:53,366 INFO L82 PathProgramCache]: Analyzing trace with hash 1315064044, now seen corresponding path program 1 times [2018-07-24 14:17:53,366 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:53,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:53,367 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:53,367 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:53,367 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:53,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:17:53,578 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:17:53,578 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:17:53,578 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:53,579 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:17:53,579 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:17:53,580 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:17:53,580 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-07-24 14:18:09,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:09,216 INFO L93 Difference]: Finished difference Result 12385 states and 19155 transitions. [2018-07-24 14:18:09,216 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:18:09,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-07-24 14:18:09,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:09,260 INFO L225 Difference]: With dead ends: 12385 [2018-07-24 14:18:09,260 INFO L226 Difference]: Without dead ends: 8705 [2018-07-24 14:18:09,280 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:18:09,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2018-07-24 14:18:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8670. [2018-07-24 14:18:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8670 states. [2018-07-24 14:18:09,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 12398 transitions. [2018-07-24 14:18:09,497 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 12398 transitions. Word has length 157 [2018-07-24 14:18:09,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:09,498 INFO L471 AbstractCegarLoop]: Abstraction has 8670 states and 12398 transitions. [2018-07-24 14:18:09,498 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:18:09,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 12398 transitions. [2018-07-24 14:18:09,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-07-24 14:18:09,502 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:09,503 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:18:09,503 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:09,503 INFO L82 PathProgramCache]: Analyzing trace with hash -664985952, now seen corresponding path program 1 times [2018-07-24 14:18:09,504 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:09,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:09,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:09,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:09,505 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:09,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:18:09,801 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:09,802 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:18:09,802 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:09,802 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:18:09,803 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:18:09,803 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:18:09,803 INFO L87 Difference]: Start difference. First operand 8670 states and 12398 transitions. Second operand 4 states. [2018-07-24 14:18:21,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:21,273 INFO L93 Difference]: Finished difference Result 33582 states and 50403 transitions. [2018-07-24 14:18:21,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:18:21,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 183 [2018-07-24 14:18:21,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:21,371 INFO L225 Difference]: With dead ends: 33582 [2018-07-24 14:18:21,373 INFO L226 Difference]: Without dead ends: 24918 [2018-07-24 14:18:21,425 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:18:21,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24918 states. [2018-07-24 14:18:21,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24918 to 24882. [2018-07-24 14:18:21,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24882 states. [2018-07-24 14:18:22,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24882 states to 24882 states and 34068 transitions. [2018-07-24 14:18:22,174 INFO L78 Accepts]: Start accepts. Automaton has 24882 states and 34068 transitions. Word has length 183 [2018-07-24 14:18:22,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:22,174 INFO L471 AbstractCegarLoop]: Abstraction has 24882 states and 34068 transitions. [2018-07-24 14:18:22,175 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:18:22,175 INFO L276 IsEmpty]: Start isEmpty. Operand 24882 states and 34068 transitions. [2018-07-24 14:18:22,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2018-07-24 14:18:22,205 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:22,206 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2018-07-24 14:18:22,206 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:22,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1611342734, now seen corresponding path program 1 times [2018-07-24 14:18:22,207 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:22,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:22,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:22,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:22,209 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 348 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 14:18:22,916 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:22,916 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:18:22,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:22,936 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:23,110 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:23,639 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 14:18:23,640 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 353 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 14:18:24,113 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:18:24,114 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:18:24,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:24,130 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:18:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:24,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:18:24,683 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 348 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 14:18:24,683 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:18:25,285 INFO L134 CoverageAnalysis]: Checked inductivity of 430 backedges. 350 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 14:18:25,287 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:18:25,287 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 14:18:25,288 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:18:25,289 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:18:25,289 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:18:25,289 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:18:25,290 INFO L87 Difference]: Start difference. First operand 24882 states and 34068 transitions. Second operand 9 states. [2018-07-24 14:18:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:18:50,529 INFO L93 Difference]: Finished difference Result 66830 states and 103329 transitions. [2018-07-24 14:18:50,531 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 14:18:50,531 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 342 [2018-07-24 14:18:50,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:18:50,795 INFO L225 Difference]: With dead ends: 66830 [2018-07-24 14:18:50,795 INFO L226 Difference]: Without dead ends: 41954 [2018-07-24 14:18:50,948 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1367 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-07-24 14:18:50,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41954 states. [2018-07-24 14:18:52,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41954 to 41822. [2018-07-24 14:18:52,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41822 states. [2018-07-24 14:18:52,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41822 states to 41822 states and 58228 transitions. [2018-07-24 14:18:52,252 INFO L78 Accepts]: Start accepts. Automaton has 41822 states and 58228 transitions. Word has length 342 [2018-07-24 14:18:52,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:18:52,253 INFO L471 AbstractCegarLoop]: Abstraction has 41822 states and 58228 transitions. [2018-07-24 14:18:52,253 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:18:52,253 INFO L276 IsEmpty]: Start isEmpty. Operand 41822 states and 58228 transitions. [2018-07-24 14:18:52,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2018-07-24 14:18:52,294 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:18:52,295 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:18:52,295 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:18:52,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1520469048, now seen corresponding path program 1 times [2018-07-24 14:18:52,295 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:18:52,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:52,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:18:52,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:18:52,297 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:18:52,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:18:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-07-24 14:18:52,785 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:18:52,785 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:18:52,785 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:18:52,786 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:18:52,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:18:52,788 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:18:52,788 INFO L87 Difference]: Start difference. First operand 41822 states and 58228 transitions. Second operand 4 states. [2018-07-24 14:19:12,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:12,951 INFO L93 Difference]: Finished difference Result 157319 states and 247484 transitions. [2018-07-24 14:19:12,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:19:12,952 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 341 [2018-07-24 14:19:12,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:13,486 INFO L225 Difference]: With dead ends: 157319 [2018-07-24 14:19:13,486 INFO L226 Difference]: Without dead ends: 115503 [2018-07-24 14:19:13,728 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115503 states. [2018-07-24 14:19:15,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115503 to 115339. [2018-07-24 14:19:15,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115339 states. [2018-07-24 14:19:16,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115339 states to 115339 states and 166900 transitions. [2018-07-24 14:19:16,333 INFO L78 Accepts]: Start accepts. Automaton has 115339 states and 166900 transitions. Word has length 341 [2018-07-24 14:19:16,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:16,337 INFO L471 AbstractCegarLoop]: Abstraction has 115339 states and 166900 transitions. [2018-07-24 14:19:16,337 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:19:16,337 INFO L276 IsEmpty]: Start isEmpty. Operand 115339 states and 166900 transitions. [2018-07-24 14:19:16,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2018-07-24 14:19:16,399 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:16,400 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:19:16,400 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:16,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1038877644, now seen corresponding path program 1 times [2018-07-24 14:19:16,401 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:16,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:16,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:16,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:16,402 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:16,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:17,874 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:19:17,875 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:17,875 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:19:17,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:17,887 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:18,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:18,038 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:18,222 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:19:18,222 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:19:18,598 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:19:18,598 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-07-24 14:19:18,598 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:18,599 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:19:18,599 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:19:18,599 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:19:18,600 INFO L87 Difference]: Start difference. First operand 115339 states and 166900 transitions. Second operand 3 states. [2018-07-24 14:19:28,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:28,859 INFO L93 Difference]: Finished difference Result 300101 states and 468572 transitions. [2018-07-24 14:19:28,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:19:28,859 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 358 [2018-07-24 14:19:28,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:29,731 INFO L225 Difference]: With dead ends: 300101 [2018-07-24 14:19:29,732 INFO L226 Difference]: Without dead ends: 184768 [2018-07-24 14:19:30,108 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 721 GetRequests, 715 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:19:30,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184768 states. [2018-07-24 14:19:33,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184768 to 184764. [2018-07-24 14:19:33,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184764 states. [2018-07-24 14:19:34,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184764 states to 184764 states and 271008 transitions. [2018-07-24 14:19:34,343 INFO L78 Accepts]: Start accepts. Automaton has 184764 states and 271008 transitions. Word has length 358 [2018-07-24 14:19:34,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:34,343 INFO L471 AbstractCegarLoop]: Abstraction has 184764 states and 271008 transitions. [2018-07-24 14:19:34,344 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:19:34,344 INFO L276 IsEmpty]: Start isEmpty. Operand 184764 states and 271008 transitions. [2018-07-24 14:19:34,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2018-07-24 14:19:34,400 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:34,401 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:19:34,401 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:34,401 INFO L82 PathProgramCache]: Analyzing trace with hash 617954152, now seen corresponding path program 1 times [2018-07-24 14:19:34,401 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:34,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:34,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:34,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:34,403 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:34,700 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-07-24 14:19:34,750 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 14:19:34,750 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:34,751 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:19:34,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:34,760 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:34,902 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:35,129 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-07-24 14:19:35,129 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 120 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 14:19:35,516 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:19:35,517 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-07-24 14:19:35,517 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:35,518 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:19:35,518 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:19:35,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:35,519 INFO L87 Difference]: Start difference. First operand 184764 states and 271008 transitions. Second operand 3 states. [2018-07-24 14:19:50,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:50,640 INFO L93 Difference]: Finished difference Result 398587 states and 602877 transitions. [2018-07-24 14:19:50,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:19:50,640 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 368 [2018-07-24 14:19:50,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:51,436 INFO L225 Difference]: With dead ends: 398587 [2018-07-24 14:19:51,436 INFO L226 Difference]: Without dead ends: 232613 [2018-07-24 14:19:51,704 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 736 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:19:51,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232613 states. [2018-07-24 14:19:57,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232613 to 232608. [2018-07-24 14:19:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232608 states. [2018-07-24 14:19:58,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232608 states to 232608 states and 331894 transitions. [2018-07-24 14:19:58,299 INFO L78 Accepts]: Start accepts. Automaton has 232608 states and 331894 transitions. Word has length 368 [2018-07-24 14:19:58,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:58,300 INFO L471 AbstractCegarLoop]: Abstraction has 232608 states and 331894 transitions. [2018-07-24 14:19:58,300 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:19:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 232608 states and 331894 transitions. [2018-07-24 14:19:58,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2018-07-24 14:19:58,322 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:58,322 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:19:58,322 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:19:58,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1957169633, now seen corresponding path program 1 times [2018-07-24 14:19:58,323 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:58,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:58,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:58,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:58,324 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 253 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:06,179 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:06,179 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:20:06,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:06,188 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:06,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:06,438 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-07-24 14:20:06,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:06,579 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-07-24 14:20:06,600 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:20:06,600 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-07-24 14:20:06,600 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:06,600 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:20:06,601 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:20:06,601 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:20:06,601 INFO L87 Difference]: Start difference. First operand 232608 states and 331894 transitions. Second operand 3 states. [2018-07-24 14:20:13,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:13,373 INFO L93 Difference]: Finished difference Result 446387 states and 642090 transitions. [2018-07-24 14:20:13,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:20:13,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 375 [2018-07-24 14:20:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:14,454 INFO L225 Difference]: With dead ends: 446387 [2018-07-24 14:20:14,454 INFO L226 Difference]: Without dead ends: 232569 [2018-07-24 14:20:14,755 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 755 GetRequests, 749 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:20:14,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232569 states. [2018-07-24 14:20:18,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232569 to 232569. [2018-07-24 14:20:18,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232569 states. [2018-07-24 14:20:20,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232569 states to 232569 states and 331137 transitions. [2018-07-24 14:20:20,037 INFO L78 Accepts]: Start accepts. Automaton has 232569 states and 331137 transitions. Word has length 375 [2018-07-24 14:20:20,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:20:20,037 INFO L471 AbstractCegarLoop]: Abstraction has 232569 states and 331137 transitions. [2018-07-24 14:20:20,037 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:20:20,038 INFO L276 IsEmpty]: Start isEmpty. Operand 232569 states and 331137 transitions. [2018-07-24 14:20:20,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2018-07-24 14:20:20,076 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:20:20,076 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:20:20,078 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:20:20,078 INFO L82 PathProgramCache]: Analyzing trace with hash 289092816, now seen corresponding path program 1 times [2018-07-24 14:20:20,078 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:20:20,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:20,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:20,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:20:20,079 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:20:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:20,448 WARN L169 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:20:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 121 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-07-24 14:20:20,640 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:20,640 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:20:20,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:20,648 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:20,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:20,801 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:21,753 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:21,753 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 248 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:20:22,037 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:20:22,038 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:20:22,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:20:22,054 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:20:22,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:20:22,395 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:20:22,541 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 121 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 14:20:22,542 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:20:23,132 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 14:20:23,134 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:20:23,135 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-07-24 14:20:23,135 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:20:23,136 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:20:23,137 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:20:23,137 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 14:20:23,137 INFO L87 Difference]: Start difference. First operand 232569 states and 331137 transitions. Second operand 5 states. [2018-07-24 14:20:37,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:20:37,366 INFO L93 Difference]: Finished difference Result 454532 states and 654931 transitions. [2018-07-24 14:20:37,366 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:20:37,366 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 411 [2018-07-24 14:20:37,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:20:38,224 INFO L225 Difference]: With dead ends: 454532 [2018-07-24 14:20:38,225 INFO L226 Difference]: Without dead ends: 240753 [2018-07-24 14:20:38,579 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1652 GetRequests, 1634 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:20:38,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240753 states. Received shutdown request... [2018-07-24 14:20:43,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240753 to 239123. [2018-07-24 14:20:43,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239123 states. [2018-07-24 14:20:43,060 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:20:43,065 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:20:43,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:20:43 BoogieIcfgContainer [2018-07-24 14:20:43,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:20:43,066 INFO L168 Benchmark]: Toolchain (without parser) took 219092.68 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -497.1 MB). Peak memory consumption was 3.6 GB. Max. memory is 7.1 GB. [2018-07-24 14:20:43,067 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:20:43,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3207.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:43,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 336.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:43,074 INFO L168 Benchmark]: Boogie Preprocessor took 1482.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 971.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:43,075 INFO L168 Benchmark]: RCFGBuilder took 11961.12 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 176.2 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 58.9 MB). Peak memory consumption was 753.4 MB. Max. memory is 7.1 GB. [2018-07-24 14:20:43,078 INFO L168 Benchmark]: TraceAbstraction took 202099.62 ms. Allocated memory was 2.7 GB in the beginning and 4.8 GB in the end (delta: 2.1 GB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 346.8 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-07-24 14:20:43,085 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3207.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 348.8 MB). Peak memory consumption was 348.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 336.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1482.58 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 971.5 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11961.12 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 176.2 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 58.9 MB). Peak memory consumption was 753.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202099.62 ms. Allocated memory was 2.7 GB in the beginning and 4.8 GB in the end (delta: 2.1 GB). Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 346.8 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 202.0s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 156.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8214 SDtfs, 26685 SDslu, 4197 SDs, 0 SdLazy, 51644 SolverSat, 12644 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 114.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5291 GetRequests, 5215 SyntacticMatches, 16 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232608occurred in iteration=8, 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: 25.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 459 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 5352 NumberOfCodeBlocks, 5352 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7935 ConstructedInterpolants, 0 QuantifiedInterpolants, 7157828 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4229 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 24 InterpolantComputations, 11 PerfectInterpolantSequences, 5877/5999 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/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-20-43-110.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label09_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-20-43-110.csv Completed graceful shutdown