java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label40_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:39:05,024 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:39:05,028 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:39:05,043 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:39:05,044 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:39:05,045 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:39:05,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:39:05,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:39:05,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:39:05,054 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:39:05,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:39:05,055 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:39:05,057 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:39:05,060 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:39:05,061 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:39:05,067 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:39:05,068 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:39:05,072 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:39:05,076 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:39:05,078 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:39:05,079 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:39:05,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:39:05,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:39:05,085 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:39:05,085 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:39:05,089 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:39:05,090 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:39:05,091 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:39:05,092 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:39:05,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:39:05,093 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:39:05,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:39:05,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:39:05,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:39:05,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:39:05,097 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:39:05,097 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:39:05,124 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:39:05,124 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:39:05,125 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:39:05,125 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:39:05,125 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:39:05,126 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:39:05,126 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:39:05,126 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:39:05,126 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:39:05,126 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:39:05,126 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:39:05,127 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:39:05,127 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:39:05,128 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:39:05,128 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:39:05,128 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:39:05,128 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:39:05,128 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:39:05,129 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:39:05,129 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:39:05,129 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:39:05,129 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:39:05,129 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:39:05,129 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:39:05,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:39:05,130 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:39:05,130 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:39:05,130 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:39:05,131 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:39:05,131 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:39:05,131 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:39:05,131 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:39:05,131 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:39:05,131 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:39:05,180 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:39:05,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:39:05,202 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:39:05,204 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:39:05,204 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:39:05,205 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label40_true-unreach-call.c [2018-09-15 15:39:05,583 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49bb344b8/9b5c4958419a45818104c5f6074c28a5/FLAGcf1867ba6 [2018-09-15 15:39:06,178 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:39:06,180 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label40_true-unreach-call.c [2018-09-15 15:39:06,229 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49bb344b8/9b5c4958419a45818104c5f6074c28a5/FLAGcf1867ba6 [2018-09-15 15:39:06,253 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/49bb344b8/9b5c4958419a45818104c5f6074c28a5 [2018-09-15 15:39:06,269 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:39:06,272 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:39:06,273 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:39:06,273 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:39:06,281 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:39:06,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:39:06" (1/1) ... [2018-09-15 15:39:06,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64aa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:06, skipping insertion in model container [2018-09-15 15:39:06,285 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:39:06" (1/1) ... [2018-09-15 15:39:06,299 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:39:08,350 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:39:08,368 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:39:09,417 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:39:10,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10 WrapperNode [2018-09-15 15:39:10,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:39:10,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:39:10,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:39:10,122 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:39:10,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:10,307 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:10,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:39:10,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:39:10,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:39:10,433 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:39:11,583 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:11,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:11,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:11,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:11,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:11,974 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:12,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... [2018-09-15 15:39:12,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:39:12,299 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:39:12,299 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:39:12,300 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:39:12,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:39:12,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:39:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:39:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-15 15:39:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-15 15:39:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-15 15:39:12,373 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-15 15:39:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 15:39:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 15:39:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 15:39:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 15:39:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:39:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:39:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:39:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:39:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:39:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:39:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:39:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:39:29,972 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:39:29,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:39:29 BoogieIcfgContainer [2018-09-15 15:39:29,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:39:29,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:39:29,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:39:29,977 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:39:29,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:39:06" (1/3) ... [2018-09-15 15:39:29,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182ecfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:39:29, skipping insertion in model container [2018-09-15 15:39:29,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:39:10" (2/3) ... [2018-09-15 15:39:29,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@182ecfe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:39:29, skipping insertion in model container [2018-09-15 15:39:29,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:39:29" (3/3) ... [2018-09-15 15:39:29,981 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label40_true-unreach-call.c [2018-09-15 15:39:29,989 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:39:29,999 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:39:30,068 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:39:30,069 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:39:30,069 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:39:30,069 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:39:30,069 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:39:30,069 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:39:30,069 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:39:30,070 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:39:30,070 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:39:30,124 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-15 15:39:30,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-15 15:39:30,134 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:39:30,135 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:39:30,137 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:39:30,142 INFO L82 PathProgramCache]: Analyzing trace with hash 779425490, now seen corresponding path program 1 times [2018-09-15 15:39:30,145 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:39:30,146 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2018-09-15 15:39:30,149 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5550], [5552], [6806], [6810], [6816], [6820], [6837], [6838], [6839], [6841] [2018-09-15 15:39:30,191 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:39:30,191 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:39:31,007 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:39:31,008 INFO L272 AbstractInterpreter]: Visited 52 different actions 52 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 15:39:31,054 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:39:31,584 INFO L232 lantSequenceWeakener]: Weakened 50 states. On average, predicates are now at 77.34% of their original sizes. [2018-09-15 15:39:31,584 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:39:31,831 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:39:31,833 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:39:31,833 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:39:31,833 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:39:31,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:39:31,848 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:39:31,849 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:39:31,851 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 6 states. [2018-09-15 15:39:55,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:39:55,480 INFO L93 Difference]: Finished difference Result 4946 states and 9354 transitions. [2018-09-15 15:39:55,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:39:55,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-09-15 15:39:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:39:55,530 INFO L225 Difference]: With dead ends: 4946 [2018-09-15 15:39:55,530 INFO L226 Difference]: Without dead ends: 3166 [2018-09-15 15:39:55,544 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:39:55,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2018-09-15 15:39:55,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3164. [2018-09-15 15:39:55,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2018-09-15 15:39:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4690 transitions. [2018-09-15 15:39:55,732 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4690 transitions. Word has length 53 [2018-09-15 15:39:55,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:39:55,734 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 4690 transitions. [2018-09-15 15:39:55,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:39:55,735 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4690 transitions. [2018-09-15 15:39:55,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2018-09-15 15:39:55,754 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:39:55,756 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 15:39:55,757 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:39:55,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2019343794, now seen corresponding path program 1 times [2018-09-15 15:39:55,758 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:39:55,758 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 294 with the following transitions: [2018-09-15 15:39:55,760 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5546], [5550], [5552], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5770], [5774], [5778], [5782], [5786], [5797], [5808], [5819], [5823], [5827], [5838], [5842], [5846], [5850], [5854], [5858], [5862], [5866], [5870], [5874], [5878], [5882], [5886], [5890], [5894], [5898], [5902], [5906], [5910], [5914], [5918], [5922], [5926], [5930], [5934], [5938], [5942], [5946], [5950], [5954], [5958], [5962], [5966], [5977], [5981], [5985], [5996], [6000], [6004], [6008], [6012], [6016], [6020], [6024], [6028], [6032], [6036], [6040], [6051], [6055], [6059], [6063], [6067], [6071], [6075], [6079], [6083], [6087], [6091], [6102], [6106], [6110], [6121], [6125], [6129], [6140], [6144], [6148], [6152], [6156], [6160], [6164], [6168], [6172], [6176], [6180], [6184], [6188], [6192], [6196], [6200], [6204], [6208], [6212], [6216], [6220], [6224], [6228], [6232], [6236], [6240], [6251], [6255], [6259], [6263], [6267], [6278], [6282], [6286], [6290], [6294], [6298], [6302], [6306], [6310], [6314], [6325], [6329], [6333], [6344], [6348], [6352], [6356], [6360], [6371], [6375], [6379], [6383], [6387], [6391], [6402], [6413], [6417], [6421], [6425], [6429], [6440], [6444], [6455], [6459], [6463], [6467], [6471], [6475], [6486], [6490], [6494], [6498], [6502], [6506], [6510], [6514], [6525], [6529], [6533], [6537], [6541], [6545], [6549], [6553], [6557], [6560], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-09-15 15:39:55,782 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:39:55,782 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:43:17,490 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:43:17,490 INFO L272 AbstractInterpreter]: Visited 247 different actions 487 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 15:43:17,500 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown