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_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:15:46,944 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:15:46,946 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:15:46,961 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:15:46,961 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:15:46,962 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:15:46,963 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:15:46,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:15:46,967 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:15:46,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:15:46,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:15:46,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:15:46,970 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:15:46,971 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:15:46,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:15:46,973 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:15:46,974 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:15:46,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:15:46,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:15:46,984 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:15:46,985 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:15:46,988 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:15:46,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:15:46,991 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:15:46,991 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:15:46,992 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:15:46,993 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:15:46,994 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:15:46,998 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:15:46,999 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:15:46,999 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:15:47,000 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:15:47,000 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:15:47,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:15:47,002 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:15:47,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:15:47,006 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 14:15:47,037 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:15:47,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:15:47,038 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:15:47,038 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:15:47,038 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:15:47,039 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:15:47,039 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:15:47,039 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:15:47,039 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:15:47,039 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:15:47,040 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:15:47,040 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:15:47,041 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:15:47,041 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:15:47,041 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:15:47,041 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:15:47,041 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:15:47,041 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:15:47,042 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:15:47,042 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:15:47,042 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:15:47,042 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:15:47,042 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:15:47,043 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:15:47,043 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:15:47,043 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:15:47,043 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:15:47,044 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:15:47,044 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:15:47,044 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:15:47,044 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:15:47,044 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:15:47,044 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:15:47,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:15:47,105 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:15:47,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:15:47,111 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:15:47,111 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:15:47,112 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c [2018-07-24 14:15:47,457 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a53fb068/9ce101a66a4c4075a150b7c7c2768779/FLAG8120779c3 [2018-07-24 14:15:48,012 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:15:48,013 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label05_true-unreach-call.c [2018-07-24 14:15:48,054 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a53fb068/9ce101a66a4c4075a150b7c7c2768779/FLAG8120779c3 [2018-07-24 14:15:48,071 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a53fb068/9ce101a66a4c4075a150b7c7c2768779 [2018-07-24 14:15:48,082 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:15:48,084 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:15:48,085 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:15:48,085 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:15:48,092 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:15:48,093 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:15:48" (1/1) ... [2018-07-24 14:15:48,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cbbfe11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:48, skipping insertion in model container [2018-07-24 14:15:48,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:15:48" (1/1) ... [2018-07-24 14:15:48,454 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:15:49,555 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:15:49,577 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:15:50,366 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:15:50,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50 WrapperNode [2018-07-24 14:15:50,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:15:50,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:15:50,737 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:15:50,737 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:15:50,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:50,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:51,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:15:51,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:15:51,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:15:51,090 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:15:51,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:51,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:51,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:51,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:52,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:52,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:52,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (1/1) ... [2018-07-24 14:15:52,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:15:52,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:15:52,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:15:52,362 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:15:52,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (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 14:15:52,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:15:52,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:15:52,438 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 14:15:52,438 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 14:15:52,438 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 14:15:52,439 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 14:15:52,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:15:52,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:15:52,439 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 14:15:52,439 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 14:15:52,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:15:52,440 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:15:52,440 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 14:15:52,440 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 14:16:03,949 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:16:03,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:16:03 BoogieIcfgContainer [2018-07-24 14:16:03,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:16:03,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:16:03,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:16:03,954 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:16:03,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:15:48" (1/3) ... [2018-07-24 14:16:03,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d81e3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:16:03, skipping insertion in model container [2018-07-24 14:16:03,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:15:50" (2/3) ... [2018-07-24 14:16:03,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d81e3f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:16:03, skipping insertion in model container [2018-07-24 14:16:03,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:16:03" (3/3) ... [2018-07-24 14:16:03,958 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label05_true-unreach-call.c [2018-07-24 14:16:03,968 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:16:03,978 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:16:04,041 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:16:04,042 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:16:04,042 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:16:04,042 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:16:04,043 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:16:04,043 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:16:04,043 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:16:04,043 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:16:04,043 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:16:04,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-24 14:16:04,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-07-24 14:16:04,102 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:04,103 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] [2018-07-24 14:16:04,104 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 14:16:04,109 INFO L82 PathProgramCache]: Analyzing trace with hash 368319929, now seen corresponding path program 1 times [2018-07-24 14:16:04,111 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:04,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:04,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:04,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:04,164 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:04,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:04,541 WARN L169 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:16:04,607 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 14:16:04,614 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:16:04,614 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:16:04,614 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:04,620 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:16:04,631 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:16:04,632 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:16:04,634 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-07-24 14:16:13,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:13,682 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-07-24 14:16:13,685 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:16:13,687 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2018-07-24 14:16:13,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:13,734 INFO L225 Difference]: With dead ends: 3097 [2018-07-24 14:16:13,734 INFO L226 Difference]: Without dead ends: 1975 [2018-07-24 14:16:13,748 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:16:13,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-07-24 14:16:13,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-07-24 14:16:13,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-07-24 14:16:13,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-07-24 14:16:13,940 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 49 [2018-07-24 14:16:13,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:13,940 INFO L471 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-07-24 14:16:13,940 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:16:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-07-24 14:16:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-07-24 14:16:13,950 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:13,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:13,951 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 14:16:13,954 INFO L82 PathProgramCache]: Analyzing trace with hash -579028472, now seen corresponding path program 1 times [2018-07-24 14:16:13,954 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:13,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:13,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:13,957 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:13,957 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:14,407 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:14,408 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:16:14,408 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:16:14,408 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:14,411 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:16:14,412 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:16:14,413 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:16:14,413 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-07-24 14:16:37,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:37,937 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-07-24 14:16:37,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:16:37,938 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 125 [2018-07-24 14:16:37,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:37,970 INFO L225 Difference]: With dead ends: 5736 [2018-07-24 14:16:37,971 INFO L226 Difference]: Without dead ends: 3768 [2018-07-24 14:16:37,978 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 14:16:37,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-07-24 14:16:38,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-07-24 14:16:38,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-07-24 14:16:38,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-07-24 14:16:38,094 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 125 [2018-07-24 14:16:38,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:38,095 INFO L471 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-07-24 14:16:38,095 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:16:38,095 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-07-24 14:16:38,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-07-24 14:16:38,101 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:38,102 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:38,102 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 14:16:38,103 INFO L82 PathProgramCache]: Analyzing trace with hash 2042794020, now seen corresponding path program 1 times [2018-07-24 14:16:38,103 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:38,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:38,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:38,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:38,104 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:38,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:38,506 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:38,507 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:16:38,507 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:16:38,507 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:38,509 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:16:38,510 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:16:38,510 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:16:38,510 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-07-24 14:16:59,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:59,065 INFO L93 Difference]: Finished difference Result 12385 states and 19155 transitions. [2018-07-24 14:16:59,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:16:59,074 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2018-07-24 14:16:59,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:59,123 INFO L225 Difference]: With dead ends: 12385 [2018-07-24 14:16:59,123 INFO L226 Difference]: Without dead ends: 8705 [2018-07-24 14:16:59,141 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:16:59,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2018-07-24 14:16:59,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8670. [2018-07-24 14:16:59,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8670 states. [2018-07-24 14:16:59,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 12398 transitions. [2018-07-24 14:16:59,350 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 12398 transitions. Word has length 139 [2018-07-24 14:16:59,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:59,351 INFO L471 AbstractCegarLoop]: Abstraction has 8670 states and 12398 transitions. [2018-07-24 14:16:59,351 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:16:59,351 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 12398 transitions. [2018-07-24 14:16:59,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2018-07-24 14:16:59,354 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:59,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:16:59,355 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 14:16:59,355 INFO L82 PathProgramCache]: Analyzing trace with hash 277873368, now seen corresponding path program 1 times [2018-07-24 14:16:59,355 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:59,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:59,356 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:59,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:59,356 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:59,535 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:16:59,536 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:16:59,536 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:16:59,536 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:59,537 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:16:59,537 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:16:59,537 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:16:59,537 INFO L87 Difference]: Start difference. First operand 8670 states and 12398 transitions. Second operand 4 states. [2018-07-24 14:17:10,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:10,065 INFO L93 Difference]: Finished difference Result 33590 states and 50516 transitions. [2018-07-24 14:17:10,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:17:10,073 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 165 [2018-07-24 14:17:10,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:10,195 INFO L225 Difference]: With dead ends: 33590 [2018-07-24 14:17:10,195 INFO L226 Difference]: Without dead ends: 24926 [2018-07-24 14:17:10,248 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:17:10,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24926 states. [2018-07-24 14:17:10,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24926 to 24900. [2018-07-24 14:17:10,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24900 states. [2018-07-24 14:17:10,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24900 states to 24900 states and 34248 transitions. [2018-07-24 14:17:10,820 INFO L78 Accepts]: Start accepts. Automaton has 24900 states and 34248 transitions. Word has length 165 [2018-07-24 14:17:10,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:10,821 INFO L471 AbstractCegarLoop]: Abstraction has 24900 states and 34248 transitions. [2018-07-24 14:17:10,821 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:17:10,821 INFO L276 IsEmpty]: Start isEmpty. Operand 24900 states and 34248 transitions. [2018-07-24 14:17:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-07-24 14:17:10,842 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:10,842 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 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 14:17:10,842 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 14:17:10,843 INFO L82 PathProgramCache]: Analyzing trace with hash 1789977038, now seen corresponding path program 1 times [2018-07-24 14:17:10,843 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:10,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:10,844 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:10,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:10,844 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:10,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:11,663 WARN L169 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 10 [2018-07-24 14:17:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 126 proven. 144 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 14:17:11,888 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:11,888 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 14:17:11,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:11,902 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:12,056 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:12,774 WARN L169 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-07-24 14:17:12,895 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 194 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2018-07-24 14:17:12,896 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:13,121 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 13 [2018-07-24 14:17:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 126 proven. 144 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-07-24 14:17:14,063 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:17:14,063 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 14:17:14,064 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:17:14,064 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:17:14,064 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:17:14,065 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:17:14,065 INFO L87 Difference]: Start difference. First operand 24900 states and 34248 transitions. Second operand 5 states. [2018-07-24 14:17:14,300 WARN L169 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 14:17:37,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:37,625 INFO L93 Difference]: Finished difference Result 57097 states and 80653 transitions. [2018-07-24 14:17:37,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:17:37,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 297 [2018-07-24 14:17:37,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:37,793 INFO L225 Difference]: With dead ends: 57097 [2018-07-24 14:17:37,793 INFO L226 Difference]: Without dead ends: 32203 [2018-07-24 14:17:37,929 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 589 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:17:37,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32203 states. [2018-07-24 14:17:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32203 to 31457. [2018-07-24 14:17:38,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31457 states. [2018-07-24 14:17:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31457 states to 31457 states and 44411 transitions. [2018-07-24 14:17:38,688 INFO L78 Accepts]: Start accepts. Automaton has 31457 states and 44411 transitions. Word has length 297 [2018-07-24 14:17:38,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:38,688 INFO L471 AbstractCegarLoop]: Abstraction has 31457 states and 44411 transitions. [2018-07-24 14:17:38,689 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:17:38,689 INFO L276 IsEmpty]: Start isEmpty. Operand 31457 states and 44411 transitions. [2018-07-24 14:17:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-07-24 14:17:38,706 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:38,706 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:17:38,707 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 14:17:38,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1337296022, now seen corresponding path program 1 times [2018-07-24 14:17:38,707 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:38,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:38,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:38,708 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:38,708 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:39,302 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 207 proven. 75 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 14:17:39,302 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:39,302 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:17:39,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:39,320 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:39,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:39,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:40,398 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 240 proven. 2 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2018-07-24 14:17:40,398 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 136 proven. 215 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:17:41,402 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:41,403 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:17:41,419 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:41,420 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:41,680 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:41,778 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2018-07-24 14:17:41,778 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:41,935 INFO L134 CoverageAnalysis]: Checked inductivity of 356 backedges. 207 proven. 75 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-07-24 14:17:41,937 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:17:41,938 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 5, 5] total 18 [2018-07-24 14:17:41,938 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:17:41,939 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 14:17:41,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 14:17:41,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:17:41,939 INFO L87 Difference]: Start difference. First operand 31457 states and 44411 transitions. Second operand 11 states. [2018-07-24 14:19:15,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:15,015 INFO L93 Difference]: Finished difference Result 149604 states and 283924 transitions. [2018-07-24 14:19:15,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2018-07-24 14:19:15,016 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 304 [2018-07-24 14:19:15,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:15,924 INFO L225 Difference]: With dead ends: 149604 [2018-07-24 14:19:15,924 INFO L226 Difference]: Without dead ends: 118957 [2018-07-24 14:19:16,255 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1432 GetRequests, 1306 SyntacticMatches, 5 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5509 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=2530, Invalid=12476, Unknown=0, NotChecked=0, Total=15006 [2018-07-24 14:19:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118957 states. [2018-07-24 14:19:19,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118957 to 116825. [2018-07-24 14:19:19,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116825 states. [2018-07-24 14:19:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116825 states to 116825 states and 181311 transitions. [2018-07-24 14:19:20,163 INFO L78 Accepts]: Start accepts. Automaton has 116825 states and 181311 transitions. Word has length 304 [2018-07-24 14:19:20,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:20,164 INFO L471 AbstractCegarLoop]: Abstraction has 116825 states and 181311 transitions. [2018-07-24 14:19:20,164 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 14:19:20,164 INFO L276 IsEmpty]: Start isEmpty. Operand 116825 states and 181311 transitions. [2018-07-24 14:19:20,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-07-24 14:19:20,249 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:20,249 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 14:19:20,250 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 14:19:20,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1329660390, now seen corresponding path program 1 times [2018-07-24 14:19:20,250 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:20,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:20,251 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:20,251 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:20,252 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:20,680 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:19:20,827 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 85 proven. 23 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-07-24 14:19:20,828 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:20,828 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 14:19:20,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:20,836 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:20,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:20,973 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:22,126 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 14:19:22,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:22,562 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-07-24 14:19:22,583 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:19:22,584 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-07-24 14:19:22,584 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:22,585 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:19:22,586 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:19:22,586 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:19:22,586 INFO L87 Difference]: Start difference. First operand 116825 states and 181311 transitions. Second operand 3 states. [2018-07-24 14:19:31,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:19:31,202 INFO L93 Difference]: Finished difference Result 216000 states and 340424 transitions. [2018-07-24 14:19:31,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:19:31,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 393 [2018-07-24 14:19:31,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:19:31,838 INFO L225 Difference]: With dead ends: 216000 [2018-07-24 14:19:31,839 INFO L226 Difference]: Without dead ends: 116770 [2018-07-24 14:19:32,115 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 786 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:19:32,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116770 states. [2018-07-24 14:19:34,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116770 to 116758. [2018-07-24 14:19:34,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116758 states. [2018-07-24 14:19:35,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116758 states to 116758 states and 180838 transitions. [2018-07-24 14:19:35,314 INFO L78 Accepts]: Start accepts. Automaton has 116758 states and 180838 transitions. Word has length 393 [2018-07-24 14:19:35,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:19:35,314 INFO L471 AbstractCegarLoop]: Abstraction has 116758 states and 180838 transitions. [2018-07-24 14:19:35,314 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:19:35,314 INFO L276 IsEmpty]: Start isEmpty. Operand 116758 states and 180838 transitions. [2018-07-24 14:19:35,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-07-24 14:19:35,390 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:19:35,390 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 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 14:19:35,390 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 14:19:35,391 INFO L82 PathProgramCache]: Analyzing trace with hash -740539161, now seen corresponding path program 1 times [2018-07-24 14:19:35,391 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:19:35,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:35,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:35,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:19:35,392 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:19:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:35,728 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:19:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 132 proven. 206 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-24 14:19:35,872 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:35,872 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 14:19:35,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:35,881 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:36,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:36,197 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 295 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-07-24 14:19:36,197 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 136 proven. 269 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:19:37,735 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:19:37,735 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 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:19:37,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:19:37,750 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:19:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:19:38,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:19:38,483 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-07-24 14:19:38,483 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:19:38,710 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 134 proven. 197 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-07-24 14:19:38,712 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-24 14:19:38,713 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 7, 8, 5] total 18 [2018-07-24 14:19:38,713 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:19:38,714 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:19:38,714 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:19:38,714 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:19:38,715 INFO L87 Difference]: Start difference. First operand 116758 states and 180838 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 14:19:47,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:19:47,225 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:19:47,230 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:19:47,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:19:47 BoogieIcfgContainer [2018-07-24 14:19:47,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:19:47,232 INFO L168 Benchmark]: Toolchain (without parser) took 239148.95 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 139.0 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-07-24 14:19:47,233 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 14:19:47,234 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2650.61 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: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:19:47,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 352.88 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 14:19:47,235 INFO L168 Benchmark]: Boogie Preprocessor took 1272.02 ms. Allocated memory was 1.5 GB in the beginning and 2.5 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 14:19:47,236 INFO L168 Benchmark]: RCFGBuilder took 11587.76 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 165.2 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 67.1 MB). Peak memory consumption was 758.3 MB. Max. memory is 7.1 GB. [2018-07-24 14:19:47,237 INFO L168 Benchmark]: TraceAbstraction took 223280.75 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.3 GB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-07-24 14:19:47,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 2650.61 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: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 352.88 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 1272.02 ms. Allocated memory was 1.5 GB in the beginning and 2.5 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 11587.76 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 165.2 MB). Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 67.1 MB). Peak memory consumption was 758.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 223280.75 ms. Allocated memory was 2.7 GB in the beginning and 3.9 GB in the end (delta: 1.2 GB). Free memory was 2.3 GB in the beginning and 1.3 GB in the end (delta: 1.0 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 138). Cancelled while BasicCegarLoop was constructing difference of abstraction (116758states) and interpolant automaton (currently 6 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (126019 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 223.1s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 200.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3822 SDtfs, 29146 SDslu, 6081 SDs, 0 SdLazy, 82609 SolverSat, 13964 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 169.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4488 GetRequests, 4300 SyntacticMatches, 18 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5623 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116825occurred in iteration=6, 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: 8.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 3034 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 3988 NumberOfCodeBlocks, 3988 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 6078 ConstructedInterpolants, 111 QuantifiedInterpolants, 7168082 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3652 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 20 InterpolantComputations, 8 PerfectInterpolantSequences, 4312/5666 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_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-19-47-258.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-19-47-258.csv Completed graceful shutdown