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/Problem12_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:14:02,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:14:02,966 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:14:02,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:14:02,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:14:02,987 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:14:02,988 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:14:02,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:14:02,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:14:02,995 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:14:02,996 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:14:02,997 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:14:02,998 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:14:03,001 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:14:03,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:14:03,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:14:03,010 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:14:03,014 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:14:03,016 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:14:03,017 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:14:03,020 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:14:03,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:14:03,028 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:14:03,028 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:14:03,028 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:14:03,029 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:14:03,031 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:14:03,031 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:14:03,032 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:14:03,034 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:14:03,034 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:14:03,036 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:14:03,036 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:14:03,037 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:14:03,038 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:14:03,039 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:14:03,040 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 14:14:03,064 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:14:03,065 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:14:03,065 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:14:03,066 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:14:03,066 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:14:03,066 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:14:03,066 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:14:03,066 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:14:03,067 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:14:03,067 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:14:03,067 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:14:03,068 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:14:03,068 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:14:03,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:14:03,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:14:03,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:14:03,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:14:03,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:14:03,069 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:14:03,069 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:14:03,069 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:14:03,069 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:14:03,070 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:14:03,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:14:03,070 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:14:03,070 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:14:03,070 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:14:03,070 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:14:03,071 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:14:03,071 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:14:03,071 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:14:03,071 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:14:03,071 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:14:03,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:14:03,146 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:14:03,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:14:03,154 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:14:03,155 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:14:03,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label53_true-unreach-call.c [2018-07-24 14:14:03,517 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf421bed/ff4ded3e88724038b0b2663047b67c96/FLAGe25266cda [2018-07-24 14:14:03,984 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:14:03,986 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label53_true-unreach-call.c [2018-07-24 14:14:04,027 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf421bed/ff4ded3e88724038b0b2663047b67c96/FLAGe25266cda [2018-07-24 14:14:04,052 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/faf421bed/ff4ded3e88724038b0b2663047b67c96 [2018-07-24 14:14:04,067 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:14:04,069 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:14:04,071 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:14:04,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:14:04,083 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:14:04,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:14:04" (1/1) ... [2018-07-24 14:14:04,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56df228f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:04, skipping insertion in model container [2018-07-24 14:14:04,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:14:04" (1/1) ... [2018-07-24 14:14:04,513 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:14:05,532 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:14:05,550 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:14:06,861 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:14:07,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07 WrapperNode [2018-07-24 14:14:07,141 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:14:07,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:14:07,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:14:07,142 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:14:07,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:07,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:07,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:14:07,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:14:07,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:14:07,382 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:14:07,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:07,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:07,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:07,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:08,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:08,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:08,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... [2018-07-24 14:14:08,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:14:08,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:14:08,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:14:08,241 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:14:08,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:14:08,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:14:08,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:14:08,315 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 14:14:08,316 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 14:14:08,316 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 14:14:08,316 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 14:14:08,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:14:08,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:14:08,317 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 14:14:08,317 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 14:14:08,317 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:14:08,318 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:14:08,318 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 14:14:08,318 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 14:14:18,005 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:14:18,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:14:18 BoogieIcfgContainer [2018-07-24 14:14:18,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:14:18,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:14:18,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:14:18,010 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:14:18,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:14:04" (1/3) ... [2018-07-24 14:14:18,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31370a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:14:18, skipping insertion in model container [2018-07-24 14:14:18,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:14:07" (2/3) ... [2018-07-24 14:14:18,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31370a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:14:18, skipping insertion in model container [2018-07-24 14:14:18,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:14:18" (3/3) ... [2018-07-24 14:14:18,013 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label53_true-unreach-call.c [2018-07-24 14:14:18,022 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:14:18,030 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:14:18,087 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:14:18,087 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:14:18,088 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:14:18,088 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:14:18,088 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:14:18,088 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:14:18,088 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:14:18,088 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:14:18,088 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:14:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-07-24 14:14:18,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-24 14:14:18,133 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:18,134 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] [2018-07-24 14:14:18,134 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 14:14:18,140 INFO L82 PathProgramCache]: Analyzing trace with hash -737869135, now seen corresponding path program 1 times [2018-07-24 14:14:18,143 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:18,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:18,193 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:18,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:18,194 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:18,574 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 14:14:18,576 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:14:18,576 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 14:14:18,576 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:14:18,581 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:14:18,593 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:14:18,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:14:18,595 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-07-24 14:14:28,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:14:28,734 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-07-24 14:14:28,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:14:28,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 39 [2018-07-24 14:14:28,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:14:28,775 INFO L225 Difference]: With dead ends: 2446 [2018-07-24 14:14:28,775 INFO L226 Difference]: Without dead ends: 1604 [2018-07-24 14:14:28,791 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 14:14:28,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-07-24 14:14:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-07-24 14:14:28,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-07-24 14:14:28,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3014 transitions. [2018-07-24 14:14:28,957 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3014 transitions. Word has length 39 [2018-07-24 14:14:28,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:14:28,958 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 3014 transitions. [2018-07-24 14:14:28,958 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:14:28,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3014 transitions. [2018-07-24 14:14:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2018-07-24 14:14:28,968 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:28,969 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:28,969 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 14:14:28,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1585544386, now seen corresponding path program 1 times [2018-07-24 14:14:28,970 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:28,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:28,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:28,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:28,971 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:29,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:29,255 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:14:29,255 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:14:29,255 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 14:14:29,255 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:14:29,257 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:14:29,258 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:14:29,258 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-24 14:14:29,258 INFO L87 Difference]: Start difference. First operand 1604 states and 3014 transitions. Second operand 5 states. [2018-07-24 14:14:41,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:14:41,570 INFO L93 Difference]: Finished difference Result 4873 states and 9168 transitions. [2018-07-24 14:14:41,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:14:41,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 109 [2018-07-24 14:14:41,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:14:41,601 INFO L225 Difference]: With dead ends: 4873 [2018-07-24 14:14:41,602 INFO L226 Difference]: Without dead ends: 3275 [2018-07-24 14:14:41,608 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:14:41,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3275 states. [2018-07-24 14:14:41,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3275 to 3241. [2018-07-24 14:14:41,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3241 states. [2018-07-24 14:14:41,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3241 states to 3241 states and 5443 transitions. [2018-07-24 14:14:41,744 INFO L78 Accepts]: Start accepts. Automaton has 3241 states and 5443 transitions. Word has length 109 [2018-07-24 14:14:41,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:14:41,745 INFO L471 AbstractCegarLoop]: Abstraction has 3241 states and 5443 transitions. [2018-07-24 14:14:41,745 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:14:41,745 INFO L276 IsEmpty]: Start isEmpty. Operand 3241 states and 5443 transitions. [2018-07-24 14:14:41,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-07-24 14:14:41,749 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:41,749 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:41,750 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 14:14:41,750 INFO L82 PathProgramCache]: Analyzing trace with hash 2094367982, now seen corresponding path program 1 times [2018-07-24 14:14:41,750 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:41,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:41,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:41,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:41,752 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:41,917 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:14:41,917 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:14:41,917 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:14:41,918 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:14:41,918 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:14:41,919 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:14:41,919 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:14:41,919 INFO L87 Difference]: Start difference. First operand 3241 states and 5443 transitions. Second operand 4 states. [2018-07-24 14:14:51,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:14:51,510 INFO L93 Difference]: Finished difference Result 12687 states and 22043 transitions. [2018-07-24 14:14:51,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:14:51,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 115 [2018-07-24 14:14:51,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:14:51,575 INFO L225 Difference]: With dead ends: 12687 [2018-07-24 14:14:51,575 INFO L226 Difference]: Without dead ends: 9452 [2018-07-24 14:14:51,595 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 14:14:51,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9452 states. [2018-07-24 14:14:51,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9452 to 9452. [2018-07-24 14:14:51,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9452 states. [2018-07-24 14:14:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9452 states to 9452 states and 14496 transitions. [2018-07-24 14:14:52,021 INFO L78 Accepts]: Start accepts. Automaton has 9452 states and 14496 transitions. Word has length 115 [2018-07-24 14:14:52,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:14:52,022 INFO L471 AbstractCegarLoop]: Abstraction has 9452 states and 14496 transitions. [2018-07-24 14:14:52,022 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:14:52,022 INFO L276 IsEmpty]: Start isEmpty. Operand 9452 states and 14496 transitions. [2018-07-24 14:14:52,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-07-24 14:14:52,036 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:14:52,037 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:14:52,037 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 14:14:52,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1069781485, now seen corresponding path program 1 times [2018-07-24 14:14:52,038 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:14:52,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:52,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:14:52,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:14:52,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:14:52,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:14:52,382 WARN L169 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:14:52,748 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:14:52,748 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:14:52,749 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:14:52,749 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:14:52,749 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:14:52,750 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:14:52,750 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:14:52,750 INFO L87 Difference]: Start difference. First operand 9452 states and 14496 transitions. Second operand 6 states. [2018-07-24 14:15:00,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:00,858 INFO L93 Difference]: Finished difference Result 28670 states and 46344 transitions. [2018-07-24 14:15:00,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:15:00,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2018-07-24 14:15:00,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:00,992 INFO L225 Difference]: With dead ends: 28670 [2018-07-24 14:15:00,992 INFO L226 Difference]: Without dead ends: 19224 [2018-07-24 14:15:01,038 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:15:01,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19224 states. [2018-07-24 14:15:01,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19224 to 19099. [2018-07-24 14:15:01,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19099 states. [2018-07-24 14:15:01,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19099 states to 19099 states and 29399 transitions. [2018-07-24 14:15:01,779 INFO L78 Accepts]: Start accepts. Automaton has 19099 states and 29399 transitions. Word has length 166 [2018-07-24 14:15:01,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:01,780 INFO L471 AbstractCegarLoop]: Abstraction has 19099 states and 29399 transitions. [2018-07-24 14:15:01,780 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:15:01,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19099 states and 29399 transitions. [2018-07-24 14:15:01,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2018-07-24 14:15:01,790 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:01,791 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:15:01,791 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 14:15:01,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1370712990, now seen corresponding path program 1 times [2018-07-24 14:15:01,791 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:01,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:01,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:01,792 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:01,792 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:02,071 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:15:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 64 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:02,234 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:02,235 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 14:15:02,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:02,245 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:02,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:02,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-24 14:15:02,748 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:03,027 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 64 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:03,049 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:15:03,049 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-07-24 14:15:03,049 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:03,050 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:03,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:03,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:15:03,051 INFO L87 Difference]: Start difference. First operand 19099 states and 29399 transitions. Second operand 5 states. [2018-07-24 14:15:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:16,963 INFO L93 Difference]: Finished difference Result 51511 states and 83508 transitions. [2018-07-24 14:15:16,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:15:16,966 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 188 [2018-07-24 14:15:16,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:17,172 INFO L225 Difference]: With dead ends: 51511 [2018-07-24 14:15:17,173 INFO L226 Difference]: Without dead ends: 32418 [2018-07-24 14:15:17,288 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 370 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:15:17,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32418 states. [2018-07-24 14:15:18,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32418 to 32229. [2018-07-24 14:15:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32229 states. [2018-07-24 14:15:18,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32229 states to 32229 states and 49391 transitions. [2018-07-24 14:15:18,322 INFO L78 Accepts]: Start accepts. Automaton has 32229 states and 49391 transitions. Word has length 188 [2018-07-24 14:15:18,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:18,323 INFO L471 AbstractCegarLoop]: Abstraction has 32229 states and 49391 transitions. [2018-07-24 14:15:18,323 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:15:18,323 INFO L276 IsEmpty]: Start isEmpty. Operand 32229 states and 49391 transitions. [2018-07-24 14:15:18,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-07-24 14:15:18,343 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:18,344 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:15:18,344 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 14:15:18,344 INFO L82 PathProgramCache]: Analyzing trace with hash 32027809, now seen corresponding path program 1 times [2018-07-24 14:15:18,344 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:18,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:18,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:18,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:18,346 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:18,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:18,670 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:15:18,971 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 64 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:18,971 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:18,971 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 14:15:18,979 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:18,979 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:19,079 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-24 14:15:19,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:19,354 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 64 proven. 90 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:15:19,376 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:15:19,376 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-07-24 14:15:19,376 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:19,377 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:19,377 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:19,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:15:19,378 INFO L87 Difference]: Start difference. First operand 32229 states and 49391 transitions. Second operand 5 states. [2018-07-24 14:15:30,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:30,428 INFO L93 Difference]: Finished difference Result 78830 states and 125100 transitions. [2018-07-24 14:15:30,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:15:30,432 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2018-07-24 14:15:30,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:30,613 INFO L225 Difference]: With dead ends: 78830 [2018-07-24 14:15:30,613 INFO L226 Difference]: Without dead ends: 46607 [2018-07-24 14:15:30,687 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 469 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:15:30,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46607 states. [2018-07-24 14:15:31,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46607 to 46510. [2018-07-24 14:15:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46510 states. [2018-07-24 14:15:31,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46510 states to 46510 states and 68188 transitions. [2018-07-24 14:15:31,594 INFO L78 Accepts]: Start accepts. Automaton has 46510 states and 68188 transitions. Word has length 237 [2018-07-24 14:15:31,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:31,595 INFO L471 AbstractCegarLoop]: Abstraction has 46510 states and 68188 transitions. [2018-07-24 14:15:31,595 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:15:31,595 INFO L276 IsEmpty]: Start isEmpty. Operand 46510 states and 68188 transitions. [2018-07-24 14:15:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2018-07-24 14:15:31,631 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:31,631 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-07-24 14:15:31,632 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 14:15:31,632 INFO L82 PathProgramCache]: Analyzing trace with hash -1712764663, now seen corresponding path program 1 times [2018-07-24 14:15:31,632 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:31,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:31,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:31,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:31,633 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:31,837 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 96 proven. 139 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 14:15:31,838 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:31,838 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:15:31,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:31,848 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:32,316 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:32,421 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-07-24 14:15:32,421 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 96 proven. 139 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-07-24 14:15:32,613 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:15:32,613 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 14:15:32,613 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:15:32,614 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:15:32,614 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:15:32,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 14:15:32,614 INFO L87 Difference]: Start difference. First operand 46510 states and 68188 transitions. Second operand 5 states. [2018-07-24 14:15:44,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:15:44,314 INFO L93 Difference]: Finished difference Result 138963 states and 212450 transitions. [2018-07-24 14:15:44,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 14:15:44,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 292 [2018-07-24 14:15:44,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:15:44,633 INFO L225 Difference]: With dead ends: 138963 [2018-07-24 14:15:44,633 INFO L226 Difference]: Without dead ends: 92459 [2018-07-24 14:15:44,783 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 582 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:15:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92459 states. [2018-07-24 14:15:46,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92459 to 92079. [2018-07-24 14:15:46,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92079 states. [2018-07-24 14:15:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92079 states to 92079 states and 128993 transitions. [2018-07-24 14:15:46,699 INFO L78 Accepts]: Start accepts. Automaton has 92079 states and 128993 transitions. Word has length 292 [2018-07-24 14:15:46,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:15:46,700 INFO L471 AbstractCegarLoop]: Abstraction has 92079 states and 128993 transitions. [2018-07-24 14:15:46,700 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:15:46,700 INFO L276 IsEmpty]: Start isEmpty. Operand 92079 states and 128993 transitions. [2018-07-24 14:15:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2018-07-24 14:15:46,729 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:15:46,730 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:15:46,730 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 14:15:46,730 INFO L82 PathProgramCache]: Analyzing trace with hash 177452195, now seen corresponding path program 1 times [2018-07-24 14:15:46,731 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:15:46,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:46,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:46,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:15:46,732 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:15:46,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:15:47,167 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:47,168 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 14:15:47,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:47,175 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:47,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:47,479 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:15:47,480 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:47,640 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:15:47,661 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:15:47,661 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 14:15:47,679 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:15:47,679 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:15:48,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:15:48,369 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:15:48,461 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:15:48,462 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:15:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-07-24 14:15:48,610 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:15:48,610 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-07-24 14:15:48,610 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:15:48,611 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 14:15:48,611 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 14:15:48,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:15:48,612 INFO L87 Difference]: Start difference. First operand 92079 states and 128993 transitions. Second operand 9 states. [2018-07-24 14:16:04,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:04,758 INFO L93 Difference]: Finished difference Result 246126 states and 376070 transitions. [2018-07-24 14:16:04,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-24 14:16:04,759 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 332 [2018-07-24 14:16:04,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:05,529 INFO L225 Difference]: With dead ends: 246126 [2018-07-24 14:16:05,529 INFO L226 Difference]: Without dead ends: 133846 [2018-07-24 14:16:05,974 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1344 GetRequests, 1324 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2018-07-24 14:16:06,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133846 states. [2018-07-24 14:16:08,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133846 to 133738. [2018-07-24 14:16:08,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133738 states. [2018-07-24 14:16:09,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133738 states to 133738 states and 189727 transitions. [2018-07-24 14:16:09,352 INFO L78 Accepts]: Start accepts. Automaton has 133738 states and 189727 transitions. Word has length 332 [2018-07-24 14:16:09,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:09,353 INFO L471 AbstractCegarLoop]: Abstraction has 133738 states and 189727 transitions. [2018-07-24 14:16:09,353 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 14:16:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 133738 states and 189727 transitions. [2018-07-24 14:16:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-07-24 14:16:09,464 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:09,464 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:16:09,464 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:09,465 INFO L82 PathProgramCache]: Analyzing trace with hash -571173308, now seen corresponding path program 1 times [2018-07-24 14:16:09,465 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:09,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:09,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:09,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:09,466 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:09,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:09,906 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 14:16:10,240 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 345 proven. 193 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-07-24 14:16:10,240 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:10,240 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:16:10,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:10,250 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:10,414 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:10,607 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 14:16:10,607 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:11,763 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 342 proven. 2 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2018-07-24 14:16:11,785 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:11,785 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:16:11,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:11,803 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:12,165 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:12,535 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 427 proven. 4 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-07-24 14:16:12,536 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:12,688 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-07-24 14:16:13,312 INFO L134 CoverageAnalysis]: Checked inductivity of 614 backedges. 427 proven. 4 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2018-07-24 14:16:13,314 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:16:13,315 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5, 5, 5] total 14 [2018-07-24 14:16:13,315 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:16:13,316 INFO L450 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-07-24 14:16:13,316 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-07-24 14:16:13,316 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2018-07-24 14:16:13,317 INFO L87 Difference]: Start difference. First operand 133738 states and 189727 transitions. Second operand 11 states. [2018-07-24 14:16:40,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:40,050 INFO L93 Difference]: Finished difference Result 312337 states and 448763 transitions. [2018-07-24 14:16:40,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-07-24 14:16:40,051 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 452 [2018-07-24 14:16:40,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:40,758 INFO L225 Difference]: With dead ends: 312337 [2018-07-24 14:16:40,758 INFO L226 Difference]: Without dead ends: 179373 [2018-07-24 14:16:41,415 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1846 GetRequests, 1809 SyntacticMatches, 13 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=478, Unknown=0, NotChecked=0, Total=650 [2018-07-24 14:16:41,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179373 states. [2018-07-24 14:16:44,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179373 to 157196. [2018-07-24 14:16:44,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157196 states. [2018-07-24 14:16:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157196 states to 157196 states and 188106 transitions. [2018-07-24 14:16:44,522 INFO L78 Accepts]: Start accepts. Automaton has 157196 states and 188106 transitions. Word has length 452 [2018-07-24 14:16:44,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:16:44,523 INFO L471 AbstractCegarLoop]: Abstraction has 157196 states and 188106 transitions. [2018-07-24 14:16:44,523 INFO L472 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-07-24 14:16:44,523 INFO L276 IsEmpty]: Start isEmpty. Operand 157196 states and 188106 transitions. [2018-07-24 14:16:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2018-07-24 14:16:44,580 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:16:44,580 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:16:44,580 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:16:44,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1979833619, now seen corresponding path program 1 times [2018-07-24 14:16:44,581 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:16:44,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:44,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:44,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:16:44,582 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:16:44,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 309 proven. 30 refuted. 0 times theorem prover too weak. 310 trivial. 0 not checked. [2018-07-24 14:16:44,960 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:16:44,960 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:16:44,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:16:44,975 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:16:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:16:45,152 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:16:46,233 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2018-07-24 14:16:46,234 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:16:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2018-07-24 14:16:46,500 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:16:46,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 4 [2018-07-24 14:16:46,501 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:16:46,501 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:16:46,502 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:16:46,502 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:16:46,502 INFO L87 Difference]: Start difference. First operand 157196 states and 188106 transitions. Second operand 3 states. [2018-07-24 14:16:57,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:16:57,689 INFO L93 Difference]: Finished difference Result 342509 states and 416894 transitions. [2018-07-24 14:16:57,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:16:57,689 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 503 [2018-07-24 14:16:57,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:16:58,229 INFO L225 Difference]: With dead ends: 342509 [2018-07-24 14:16:58,229 INFO L226 Difference]: Without dead ends: 186087 [2018-07-24 14:16:58,494 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 1006 SyntacticMatches, 4 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:16:58,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186087 states. [2018-07-24 14:17:00,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186087 to 176813. [2018-07-24 14:17:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176813 states. [2018-07-24 14:17:01,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176813 states to 176813 states and 209560 transitions. [2018-07-24 14:17:01,276 INFO L78 Accepts]: Start accepts. Automaton has 176813 states and 209560 transitions. Word has length 503 [2018-07-24 14:17:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:01,277 INFO L471 AbstractCegarLoop]: Abstraction has 176813 states and 209560 transitions. [2018-07-24 14:17:01,277 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:17:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 176813 states and 209560 transitions. [2018-07-24 14:17:01,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 564 [2018-07-24 14:17:01,314 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:17:01,314 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:17:01,314 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:17:01,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1230774995, now seen corresponding path program 1 times [2018-07-24 14:17:01,315 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:17:01,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:01,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:01,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:17:01,316 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:17:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:02,087 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 551 proven. 89 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-07-24 14:17:02,087 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:02,087 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:17:02,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:02,096 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:02,292 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 465 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-07-24 14:17:02,468 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 465 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-07-24 14:17:03,324 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:17:03,324 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:17:03,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:17:03,340 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:17:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:17:03,781 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:17:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 465 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-07-24 14:17:03,904 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:17:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 735 backedges. 465 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-07-24 14:17:04,224 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:17:04,225 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-07-24 14:17:04,225 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:17:04,226 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 14:17:04,226 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 14:17:04,226 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:17:04,227 INFO L87 Difference]: Start difference. First operand 176813 states and 209560 transitions. Second operand 7 states. [2018-07-24 14:17:29,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:17:29,053 INFO L93 Difference]: Finished difference Result 466679 states and 616011 transitions. [2018-07-24 14:17:29,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-07-24 14:17:29,054 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 563 [2018-07-24 14:17:29,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:17:29,060 INFO L225 Difference]: With dead ends: 466679 [2018-07-24 14:17:29,060 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 14:17:29,890 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2272 GetRequests, 2255 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2018-07-24 14:17:29,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 14:17:29,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 14:17:29,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 14:17:29,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 14:17:29,894 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 563 [2018-07-24 14:17:29,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:17:29,895 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 14:17:29,895 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 14:17:29,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 14:17:29,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 14:17:29,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 14:17:32,986 WARN L169 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2018-07-24 14:17:36,197 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,320 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,403 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:36,588 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,888 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,922 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,969 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,976 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,978 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:37,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,063 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,195 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,203 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,235 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,402 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,405 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,421 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,545 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,661 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,918 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,970 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:38,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,031 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,111 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,290 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,782 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:39,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,135 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,404 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,702 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,779 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:40,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,124 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,182 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,455 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:41,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,446 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:42,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,013 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,233 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,783 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,859 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:43,884 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,363 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:44,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,789 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:45,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,048 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,089 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:46,769 WARN L169 SmtUtils]: Spent 10.93 s on a formula simplification. DAG size of input: 1520 DAG size of output: 804 [2018-07-24 14:17:48,258 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,298 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:48,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,174 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,381 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 14:17:49,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-07-24 14:17:49,488 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 14:17:49,490 INFO L168 Benchmark]: Toolchain (without parser) took 225421.65 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-07-24 14:17:49,491 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 14:17:49,491 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3070.38 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:17:49,492 INFO L168 Benchmark]: Boogie Procedure Inliner took 239.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:17:49,493 INFO L168 Benchmark]: Boogie Preprocessor took 858.66 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 895.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-07-24 14:17:49,494 INFO L168 Benchmark]: RCFGBuilder took 9765.14 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 163.1 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -127.5 MB). Peak memory consumption was 718.1 MB. Max. memory is 7.1 GB. [2018-07-24 14:17:49,495 INFO L168 Benchmark]: TraceAbstraction took 211482.44 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: -224.9 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-07-24 14:17:49,500 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 3070.38 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 239.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 858.66 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 895.0 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9765.14 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 163.1 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -127.5 MB). Peak memory consumption was 718.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211482.44 ms. Allocated memory was 2.6 GB in the beginning and 4.9 GB in the end (delta: 2.3 GB). Free memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: -224.9 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 108]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1496. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label53_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-17-49-517.csv Completed graceful shutdown