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_label07_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 11:55:18,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 11:55:18,960 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 11:55:18,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 11:55:18,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 11:55:18,973 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 11:55:18,974 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 11:55:18,976 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 11:55:18,978 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 11:55:18,979 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 11:55:18,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 11:55:18,980 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 11:55:18,981 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 11:55:18,982 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 11:55:18,983 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 11:55:18,984 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 11:55:18,985 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 11:55:18,987 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 11:55:18,989 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 11:55:18,990 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 11:55:18,992 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 11:55:18,993 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 11:55:18,996 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 11:55:18,996 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 11:55:18,996 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 11:55:18,997 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 11:55:19,000 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 11:55:19,006 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 11:55:19,007 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 11:55:19,008 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 11:55:19,008 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 11:55:19,011 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 11:55:19,011 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 11:55:19,011 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 11:55:19,012 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 11:55:19,013 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 11:55:19,016 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 11:55:19,035 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 11:55:19,035 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 11:55:19,036 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 11:55:19,036 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 11:55:19,036 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 11:55:19,037 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 11:55:19,037 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 11:55:19,037 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 11:55:19,037 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 11:55:19,037 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 11:55:19,038 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 11:55:19,038 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 11:55:19,038 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 11:55:19,039 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 11:55:19,039 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 11:55:19,039 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 11:55:19,039 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 11:55:19,039 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 11:55:19,040 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 11:55:19,040 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 11:55:19,040 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 11:55:19,040 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 11:55:19,040 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 11:55:19,041 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:55:19,041 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 11:55:19,041 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 11:55:19,041 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 11:55:19,041 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 11:55:19,042 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 11:55:19,042 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 11:55:19,042 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 11:55:19,042 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 11:55:19,042 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 11:55:19,099 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 11:55:19,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 11:55:19,125 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 11:55:19,127 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 11:55:19,127 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 11:55:19,128 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label07_false-unreach-call.c [2018-07-24 11:55:19,494 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c662326e3/9f5b9edb125e4b2a9e76e4e82903cd6a/FLAG84b169c62 [2018-07-24 11:55:20,035 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 11:55:20,036 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label07_false-unreach-call.c [2018-07-24 11:55:20,069 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c662326e3/9f5b9edb125e4b2a9e76e4e82903cd6a/FLAG84b169c62 [2018-07-24 11:55:20,086 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c662326e3/9f5b9edb125e4b2a9e76e4e82903cd6a [2018-07-24 11:55:20,098 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 11:55:20,100 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 11:55:20,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 11:55:20,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 11:55:20,108 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 11:55:20,110 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:55:20" (1/1) ... [2018-07-24 11:55:20,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cca5ef9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:20, skipping insertion in model container [2018-07-24 11:55:20,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 11:55:20" (1/1) ... [2018-07-24 11:55:20,447 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 11:55:21,645 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:55:21,666 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 11:55:22,578 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 11:55:22,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22 WrapperNode [2018-07-24 11:55:22,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 11:55:22,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 11:55:22,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 11:55:22,977 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 11:55:22,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:23,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:23,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 11:55:23,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 11:55:23,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 11:55:23,322 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 11:55:24,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,510 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,543 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... [2018-07-24 11:55:24,797 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 11:55:24,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 11:55:24,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 11:55:24,798 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 11:55:24,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 11:55:24,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 11:55:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 11:55:24,869 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 11:55:24,869 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-24 11:55:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 11:55:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 11:55:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 11:55:24,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 11:55:24,870 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 11:55:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-24 11:55:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 11:55:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-24 11:55:24,871 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:55:24,871 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-24 11:55:40,751 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 11:55:40,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:55:40 BoogieIcfgContainer [2018-07-24 11:55:40,752 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 11:55:40,753 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 11:55:40,753 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 11:55:40,757 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 11:55:40,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 11:55:20" (1/3) ... [2018-07-24 11:55:40,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32853883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:55:40, skipping insertion in model container [2018-07-24 11:55:40,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 11:55:22" (2/3) ... [2018-07-24 11:55:40,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32853883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 11:55:40, skipping insertion in model container [2018-07-24 11:55:40,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 11:55:40" (3/3) ... [2018-07-24 11:55:40,761 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label07_false-unreach-call.c [2018-07-24 11:55:40,771 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 11:55:40,782 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 11:55:40,851 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 11:55:40,852 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 11:55:40,852 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 11:55:40,852 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 11:55:40,852 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 11:55:40,852 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 11:55:40,853 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 11:55:40,853 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 11:55:40,853 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 11:55:40,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 11:55:40,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-07-24 11:55:40,905 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:40,906 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] [2018-07-24 11:55:40,907 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:40,912 INFO L82 PathProgramCache]: Analyzing trace with hash -514481252, now seen corresponding path program 1 times [2018-07-24 11:55:40,915 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:40,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:40,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:40,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:40,969 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:41,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:41,366 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:55:41,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:41,405 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:55:41,405 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 11:55:41,405 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:55:41,411 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 11:55:41,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 11:55:41,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:55:41,425 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 11:55:51,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:55:51,548 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-24 11:55:51,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 11:55:51,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-07-24 11:55:51,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:55:51,594 INFO L225 Difference]: With dead ends: 3097 [2018-07-24 11:55:51,594 INFO L226 Difference]: Without dead ends: 1975 [2018-07-24 11:55:51,605 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 11:55:51,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-24 11:55:51,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-24 11:55:51,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-24 11:55:51,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-24 11:55:51,767 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 28 [2018-07-24 11:55:51,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:55:51,768 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-24 11:55:51,768 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 11:55:51,769 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-24 11:55:51,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-24 11:55:51,774 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:55:51,775 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:55:51,775 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:55:51,776 INFO L82 PathProgramCache]: Analyzing trace with hash 1444888012, now seen corresponding path program 1 times [2018-07-24 11:55:51,776 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:55:51,777 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:51,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:55:51,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:55:51,778 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:55:51,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:55:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:55:52,185 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:55:52,186 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:55:52,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:55:52,188 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:55:52,188 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:55:52,189 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:55:52,189 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-24 11:56:13,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:56:13,038 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-07-24 11:56:13,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:56:13,040 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-07-24 11:56:13,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:56:13,071 INFO L225 Difference]: With dead ends: 5736 [2018-07-24 11:56:13,072 INFO L226 Difference]: Without dead ends: 3768 [2018-07-24 11:56:13,079 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 11:56:13,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-07-24 11:56:13,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-07-24 11:56:13,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-07-24 11:56:13,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-07-24 11:56:13,207 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 104 [2018-07-24 11:56:13,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:56:13,208 INFO L471 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-07-24 11:56:13,208 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:56:13,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-07-24 11:56:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-07-24 11:56:13,212 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:56:13,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:56:13,212 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:56:13,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1721596592, now seen corresponding path program 1 times [2018-07-24 11:56:13,213 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:56:13,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:13,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:13,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:13,214 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:56:13,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:13,634 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:13,635 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:56:13,635 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:56:13,635 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:56:13,635 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:56:13,636 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:56:13,636 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:56:13,636 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 6 states. [2018-07-24 11:56:25,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:56:25,070 INFO L93 Difference]: Finished difference Result 10872 states and 17249 transitions. [2018-07-24 11:56:25,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:56:25,071 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 118 [2018-07-24 11:56:25,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:56:25,117 INFO L225 Difference]: With dead ends: 10872 [2018-07-24 11:56:25,118 INFO L226 Difference]: Without dead ends: 7192 [2018-07-24 11:56:25,134 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:56:25,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7192 states. [2018-07-24 11:56:25,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7192 to 7143. [2018-07-24 11:56:25,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7143 states. [2018-07-24 11:56:25,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7143 states to 7143 states and 10339 transitions. [2018-07-24 11:56:25,360 INFO L78 Accepts]: Start accepts. Automaton has 7143 states and 10339 transitions. Word has length 118 [2018-07-24 11:56:25,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:56:25,360 INFO L471 AbstractCegarLoop]: Abstraction has 7143 states and 10339 transitions. [2018-07-24 11:56:25,361 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:56:25,361 INFO L276 IsEmpty]: Start isEmpty. Operand 7143 states and 10339 transitions. [2018-07-24 11:56:25,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-24 11:56:25,368 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:56:25,372 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:56:25,372 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:56:25,372 INFO L82 PathProgramCache]: Analyzing trace with hash 89590416, now seen corresponding path program 1 times [2018-07-24 11:56:25,373 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:56:25,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:25,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:25,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:25,375 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:56:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:25,724 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:25,724 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:56:25,725 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 11:56:25,725 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:56:25,725 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 11:56:25,726 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 11:56:25,726 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 11:56:25,726 INFO L87 Difference]: Start difference. First operand 7143 states and 10339 transitions. Second operand 6 states. [2018-07-24 11:56:39,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:56:39,672 INFO L93 Difference]: Finished difference Result 24012 states and 36805 transitions. [2018-07-24 11:56:39,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:56:39,673 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-07-24 11:56:39,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:56:39,782 INFO L225 Difference]: With dead ends: 24012 [2018-07-24 11:56:39,782 INFO L226 Difference]: Without dead ends: 16875 [2018-07-24 11:56:39,828 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 11:56:39,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16875 states. [2018-07-24 11:56:40,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16875 to 16668. [2018-07-24 11:56:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16668 states. [2018-07-24 11:56:40,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16668 states to 16668 states and 23882 transitions. [2018-07-24 11:56:40,307 INFO L78 Accepts]: Start accepts. Automaton has 16668 states and 23882 transitions. Word has length 134 [2018-07-24 11:56:40,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:56:40,307 INFO L471 AbstractCegarLoop]: Abstraction has 16668 states and 23882 transitions. [2018-07-24 11:56:40,307 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 11:56:40,308 INFO L276 IsEmpty]: Start isEmpty. Operand 16668 states and 23882 transitions. [2018-07-24 11:56:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2018-07-24 11:56:40,311 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:56:40,311 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:56:40,311 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:56:40,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1851603828, now seen corresponding path program 1 times [2018-07-24 11:56:40,312 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:56:40,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:40,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:56:40,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:56:40,313 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:56:40,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:56:40,581 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:56:40,582 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:56:40,582 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 11:56:40,582 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:56:40,583 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:56:40,583 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:56:40,583 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 11:56:40,584 INFO L87 Difference]: Start difference. First operand 16668 states and 23882 transitions. Second operand 5 states. [2018-07-24 11:57:07,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:07,164 INFO L93 Difference]: Finished difference Result 55140 states and 84062 transitions. [2018-07-24 11:57:07,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 11:57:07,165 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2018-07-24 11:57:07,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:07,335 INFO L225 Difference]: With dead ends: 55140 [2018-07-24 11:57:07,335 INFO L226 Difference]: Without dead ends: 38478 [2018-07-24 11:57:07,404 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 11:57:07,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38478 states. [2018-07-24 11:57:08,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38478 to 38222. [2018-07-24 11:57:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38222 states. [2018-07-24 11:57:08,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38222 states to 38222 states and 55875 transitions. [2018-07-24 11:57:08,340 INFO L78 Accepts]: Start accepts. Automaton has 38222 states and 55875 transitions. Word has length 136 [2018-07-24 11:57:08,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:08,341 INFO L471 AbstractCegarLoop]: Abstraction has 38222 states and 55875 transitions. [2018-07-24 11:57:08,341 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:57:08,342 INFO L276 IsEmpty]: Start isEmpty. Operand 38222 states and 55875 transitions. [2018-07-24 11:57:08,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-07-24 11:57:08,344 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:08,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:57:08,344 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:57:08,345 INFO L82 PathProgramCache]: Analyzing trace with hash 843352316, now seen corresponding path program 1 times [2018-07-24 11:57:08,345 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:08,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:08,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:08,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:08,349 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:08,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:08,574 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:57:08,574 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 11:57:08,574 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 11:57:08,574 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:08,575 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 11:57:08,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 11:57:08,576 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 11:57:08,576 INFO L87 Difference]: Start difference. First operand 38222 states and 55875 transitions. Second operand 4 states. [2018-07-24 11:57:21,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:21,915 INFO L93 Difference]: Finished difference Result 107802 states and 169348 transitions. [2018-07-24 11:57:21,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 11:57:21,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 144 [2018-07-24 11:57:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:22,193 INFO L225 Difference]: With dead ends: 107802 [2018-07-24 11:57:22,193 INFO L226 Difference]: Without dead ends: 69586 [2018-07-24 11:57:22,343 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 11:57:22,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69586 states. [2018-07-24 11:57:24,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69586 to 69508. [2018-07-24 11:57:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69508 states. [2018-07-24 11:57:24,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69508 states to 69508 states and 101121 transitions. [2018-07-24 11:57:24,361 INFO L78 Accepts]: Start accepts. Automaton has 69508 states and 101121 transitions. Word has length 144 [2018-07-24 11:57:24,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:24,361 INFO L471 AbstractCegarLoop]: Abstraction has 69508 states and 101121 transitions. [2018-07-24 11:57:24,361 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 11:57:24,362 INFO L276 IsEmpty]: Start isEmpty. Operand 69508 states and 101121 transitions. [2018-07-24 11:57:24,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-07-24 11:57:24,404 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:24,405 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:57:24,405 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:57:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash -772889076, now seen corresponding path program 1 times [2018-07-24 11:57:24,405 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:24,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:24,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:24,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:24,407 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:25,044 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 231 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-07-24 11:57:25,045 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:57:25,045 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:57:25,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:25,071 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:57:25,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:25,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:57:25,574 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 11:57:25,575 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:57:25,986 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 236 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-07-24 11:57:26,027 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:57:26,027 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 11:57:26,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:26,063 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:57:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:26,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:57:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 231 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 11:57:26,560 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:57:26,722 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 11:57:27,563 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 233 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 11:57:27,565 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:57:27,566 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-07-24 11:57:27,566 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:57:27,567 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 11:57:27,568 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 11:57:27,568 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:57:27,568 INFO L87 Difference]: Start difference. First operand 69508 states and 101121 transitions. Second operand 9 states. [2018-07-24 11:57:48,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:57:48,018 INFO L93 Difference]: Finished difference Result 156646 states and 261547 transitions. [2018-07-24 11:57:48,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-07-24 11:57:48,018 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 303 [2018-07-24 11:57:48,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:57:48,646 INFO L225 Difference]: With dead ends: 156646 [2018-07-24 11:57:48,646 INFO L226 Difference]: Without dead ends: 87144 [2018-07-24 11:57:49,036 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1212 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-07-24 11:57:49,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87144 states. [2018-07-24 11:57:52,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87144 to 86807. [2018-07-24 11:57:52,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86807 states. [2018-07-24 11:57:52,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86807 states to 86807 states and 127048 transitions. [2018-07-24 11:57:52,260 INFO L78 Accepts]: Start accepts. Automaton has 86807 states and 127048 transitions. Word has length 303 [2018-07-24 11:57:52,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:57:52,260 INFO L471 AbstractCegarLoop]: Abstraction has 86807 states and 127048 transitions. [2018-07-24 11:57:52,261 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 11:57:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 86807 states and 127048 transitions. [2018-07-24 11:57:52,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-07-24 11:57:52,306 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:57:52,306 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:57:52,307 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:57:52,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1250922315, now seen corresponding path program 1 times [2018-07-24 11:57:52,307 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:57:52,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:52,308 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:52,308 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:57:52,308 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:57:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:52,717 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-07-24 11:57:52,717 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:57:52,717 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:57:52,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:57:52,726 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:57:52,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:57:52,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:57:53,193 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-07-24 11:57:53,193 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:57:53,444 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2018-07-24 11:57:53,715 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 42 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 11:57:53,736 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 11:57:53,737 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-07-24 11:57:53,737 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:57:53,737 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:57:53,737 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:57:53,738 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-07-24 11:57:53,738 INFO L87 Difference]: Start difference. First operand 86807 states and 127048 transitions. Second operand 5 states. [2018-07-24 11:58:16,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:58:16,606 INFO L93 Difference]: Finished difference Result 187638 states and 286339 transitions. [2018-07-24 11:58:16,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 11:58:16,607 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 302 [2018-07-24 11:58:16,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:58:17,175 INFO L225 Difference]: With dead ends: 187638 [2018-07-24 11:58:17,175 INFO L226 Difference]: Without dead ends: 100837 [2018-07-24 11:58:17,456 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 614 GetRequests, 602 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-07-24 11:58:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100837 states. [2018-07-24 11:58:20,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100837 to 100254. [2018-07-24 11:58:20,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100254 states. [2018-07-24 11:58:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100254 states to 100254 states and 145610 transitions. [2018-07-24 11:58:20,608 INFO L78 Accepts]: Start accepts. Automaton has 100254 states and 145610 transitions. Word has length 302 [2018-07-24 11:58:20,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:58:20,608 INFO L471 AbstractCegarLoop]: Abstraction has 100254 states and 145610 transitions. [2018-07-24 11:58:20,609 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:58:20,609 INFO L276 IsEmpty]: Start isEmpty. Operand 100254 states and 145610 transitions. [2018-07-24 11:58:20,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2018-07-24 11:58:20,631 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:58:20,632 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 11:58:20,632 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:58:20,632 INFO L82 PathProgramCache]: Analyzing trace with hash -886941418, now seen corresponding path program 1 times [2018-07-24 11:58:20,633 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:58:20,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:20,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:20,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:20,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:58:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 43 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-07-24 11:58:20,956 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:20,956 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:58:20,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:20,964 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:21,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:21,305 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:58:21,306 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 170 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 11:58:21,501 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:21,502 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:58:21,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:21,518 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:21,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:22,266 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 11:58:22,267 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:23,968 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 11:58:23,970 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-07-24 11:58:23,970 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 14 [2018-07-24 11:58:23,970 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 11:58:23,971 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 11:58:23,971 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 11:58:23,971 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-07-24 11:58:23,971 INFO L87 Difference]: Start difference. First operand 100254 states and 145610 transitions. Second operand 5 states. [2018-07-24 11:58:38,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 11:58:38,885 INFO L93 Difference]: Finished difference Result 211457 states and 323876 transitions. [2018-07-24 11:58:38,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 11:58:38,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2018-07-24 11:58:38,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 11:58:39,427 INFO L225 Difference]: With dead ends: 211457 [2018-07-24 11:58:39,427 INFO L226 Difference]: Without dead ends: 112014 [2018-07-24 11:58:39,762 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1296 GetRequests, 1275 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2018-07-24 11:58:39,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112014 states. [2018-07-24 11:58:42,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112014 to 111590. [2018-07-24 11:58:42,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111590 states. [2018-07-24 11:58:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111590 states to 111590 states and 153891 transitions. [2018-07-24 11:58:43,115 INFO L78 Accepts]: Start accepts. Automaton has 111590 states and 153891 transitions. Word has length 322 [2018-07-24 11:58:43,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 11:58:43,115 INFO L471 AbstractCegarLoop]: Abstraction has 111590 states and 153891 transitions. [2018-07-24 11:58:43,115 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 11:58:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 111590 states and 153891 transitions. [2018-07-24 11:58:43,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2018-07-24 11:58:43,144 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 11:58:43,145 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 11:58:43,145 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 11:58:43,145 INFO L82 PathProgramCache]: Analyzing trace with hash -495309810, now seen corresponding path program 1 times [2018-07-24 11:58:43,145 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 11:58:43,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:43,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:43,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 11:58:43,146 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 11:58:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:47,718 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 11:58:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 166 proven. 99 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2018-07-24 11:58:48,121 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:48,121 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 11:58:48,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:48,130 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:48,279 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:48,598 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 261 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 11:58:48,598 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 261 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 11:58:48,826 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 11:58:48,826 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 11:58:48,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 11:58:48,842 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 11:58:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 11:58:49,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 11:58:49,269 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 261 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 11:58:49,270 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 11:58:49,490 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 261 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-07-24 11:58:49,492 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 11:58:49,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 18 [2018-07-24 11:58:49,493 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 11:58:49,494 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 11:58:49,494 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 11:58:49,494 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2018-07-24 11:58:49,495 INFO L87 Difference]: Start difference. First operand 111590 states and 153891 transitions. Second operand 11 states. Received shutdown request... [2018-07-24 11:59:07,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 11:59:07,521 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 11:59:07,526 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 11:59:07,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 11:59:07 BoogieIcfgContainer [2018-07-24 11:59:07,527 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 11:59:07,528 INFO L168 Benchmark]: Toolchain (without parser) took 227429.04 ms. Allocated memory was 1.5 GB in the beginning and 3.8 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-24 11:59:07,529 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 11:59:07,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2874.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. [2018-07-24 11:59:07,530 INFO L168 Benchmark]: Boogie Procedure Inliner took 344.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 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 11:59:07,530 INFO L168 Benchmark]: Boogie Preprocessor took 1476.08 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-07-24 11:59:07,531 INFO L168 Benchmark]: RCFGBuilder took 15954.30 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 139.5 MB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 122.2 MB). Peak memory consumption was 737.5 MB. Max. memory is 7.1 GB. [2018-07-24 11:59:07,533 INFO L168 Benchmark]: TraceAbstraction took 206773.99 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.1 GB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -445.3 MB). Peak memory consumption was 687.2 MB. Max. memory is 7.1 GB. [2018-07-24 11:59:07,538 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 2874.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 341.9 MB). Peak memory consumption was 341.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 344.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 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 1476.08 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15954.30 ms. Allocated memory was 2.6 GB in the beginning and 2.7 GB in the end (delta: 139.5 MB). Free memory was 2.4 GB in the beginning and 2.2 GB in the end (delta: 122.2 MB). Peak memory consumption was 737.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206773.99 ms. Allocated memory was 2.7 GB in the beginning and 3.8 GB in the end (delta: 1.1 GB). Free memory was 2.2 GB in the beginning and 2.7 GB in the end (delta: -445.3 MB). Peak memory consumption was 687.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 75). Cancelled while BasicCegarLoop was constructing difference of abstraction (111590states) and interpolant automaton (currently 13 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (183834 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 206.6s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 176.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4786 SDtfs, 45196 SDslu, 5664 SDs, 0 SdLazy, 71068 SolverSat, 14914 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 144.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4664 GetRequests, 4545 SyntacticMatches, 22 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 316 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111590occurred in iteration=9, 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: 13.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 2017 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 13.8s InterpolantComputationTime, 4226 NumberOfCodeBlocks, 4226 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 6476 ConstructedInterpolants, 0 QuantifiedInterpolants, 6700665 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3980 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 4412/4735 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_label07_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_11-59-07-552.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label07_false-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_11-59-07-552.csv Completed graceful shutdown