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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 22:33:33,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 22:33:33,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 22:33:33,121 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 22:33:33,121 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 22:33:33,122 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 22:33:33,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 22:33:33,125 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 22:33:33,127 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 22:33:33,128 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 22:33:33,129 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 22:33:33,129 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 22:33:33,130 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 22:33:33,131 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 22:33:33,132 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 22:33:33,133 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 22:33:33,134 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 22:33:33,136 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 22:33:33,138 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 22:33:33,139 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 22:33:33,140 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 22:33:33,141 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 22:33:33,144 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 22:33:33,144 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 22:33:33,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 22:33:33,145 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 22:33:33,146 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 22:33:33,147 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 22:33:33,148 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 22:33:33,149 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 22:33:33,149 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 22:33:33,150 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 22:33:33,150 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 22:33:33,150 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 22:33:33,151 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 22:33:33,152 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 22:33:33,152 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-09-15 22:33:33,168 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 22:33:33,168 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 22:33:33,169 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 22:33:33,169 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 22:33:33,169 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 22:33:33,169 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 22:33:33,170 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 22:33:33,170 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 22:33:33,170 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 22:33:33,170 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 22:33:33,170 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 22:33:33,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 22:33:33,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 22:33:33,171 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 22:33:33,172 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 22:33:33,172 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 22:33:33,172 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 22:33:33,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 22:33:33,172 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 22:33:33,173 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 22:33:33,173 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 22:33:33,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 22:33:33,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 22:33:33,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 22:33:33,174 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 22:33:33,174 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 22:33:33,174 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 22:33:33,174 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 22:33:33,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 22:33:33,175 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 22:33:33,175 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 22:33:33,175 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 22:33:33,175 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 22:33:33,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 22:33:33,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 22:33:33,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 22:33:33,249 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 22:33:33,249 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 22:33:33,250 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c [2018-09-15 22:33:33,571 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/377d63d8f/55a2eb03bda7447db1b6d49e14825d93/FLAGbc36e82a4 [2018-09-15 22:33:34,216 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 22:33:34,218 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label36_true-unreach-call.c [2018-09-15 22:33:34,259 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/377d63d8f/55a2eb03bda7447db1b6d49e14825d93/FLAGbc36e82a4 [2018-09-15 22:33:34,286 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/377d63d8f/55a2eb03bda7447db1b6d49e14825d93 [2018-09-15 22:33:34,307 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 22:33:34,312 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 22:33:34,313 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 22:33:34,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 22:33:34,329 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 22:33:34,331 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:33:34" (1/1) ... [2018-09-15 22:33:34,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674a5556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:34, skipping insertion in model container [2018-09-15 22:33:34,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 10:33:34" (1/1) ... [2018-09-15 22:33:34,358 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 22:33:35,705 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:33:35,728 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 22:33:36,411 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 22:33:36,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36 WrapperNode [2018-09-15 22:33:36,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 22:33:36,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 22:33:36,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 22:33:36,675 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 22:33:36,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:36,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:36,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 22:33:36,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 22:33:36,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 22:33:36,943 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 22:33:37,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,621 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,622 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (1/1) ... [2018-09-15 22:33:37,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 22:33:37,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 22:33:37,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 22:33:37,894 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 22:33:37,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (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 22:33:37,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 22:33:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 22:33:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 22:33:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 22:33:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 22:33:37,972 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 22:33:37,972 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 22:33:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 22:33:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 22:33:37,973 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 22:33:37,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 22:33:37,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 22:33:37,974 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 22:33:37,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 22:33:50,479 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 22:33:50,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:33:50 BoogieIcfgContainer [2018-09-15 22:33:50,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 22:33:50,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 22:33:50,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 22:33:50,484 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 22:33:50,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 10:33:34" (1/3) ... [2018-09-15 22:33:50,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f126206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:33:50, skipping insertion in model container [2018-09-15 22:33:50,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 10:33:36" (2/3) ... [2018-09-15 22:33:50,486 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f126206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 10:33:50, skipping insertion in model container [2018-09-15 22:33:50,486 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 10:33:50" (3/3) ... [2018-09-15 22:33:50,488 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label36_true-unreach-call.c [2018-09-15 22:33:50,498 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 22:33:50,508 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 22:33:50,574 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 22:33:50,575 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 22:33:50,575 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 22:33:50,575 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 22:33:50,576 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 22:33:50,576 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 22:33:50,576 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 22:33:50,576 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 22:33:50,576 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 22:33:50,623 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-15 22:33:50,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-15 22:33:50,634 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:33:50,635 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 22:33:50,636 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:33:50,642 INFO L82 PathProgramCache]: Analyzing trace with hash -21070164, now seen corresponding path program 1 times [2018-09-15 22:33:50,645 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:33:50,646 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 65 with the following transitions: [2018-09-15 22:33:50,650 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2279], [2281], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-15 22:33:50,695 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:33:50,696 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:33:53,309 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:33:53,311 INFO L272 AbstractInterpreter]: Visited 63 different actions 63 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-15 22:33:53,370 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:33:54,808 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 77.67% of their original sizes. [2018-09-15 22:33:54,808 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:33:55,020 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:33:55,021 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:33:55,022 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 22:33:55,022 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:33:55,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 22:33:55,035 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 22:33:55,036 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 22:33:55,039 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-15 22:34:11,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:34:11,938 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-15 22:34:11,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 22:34:11,948 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2018-09-15 22:34:11,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:34:11,981 INFO L225 Difference]: With dead ends: 2448 [2018-09-15 22:34:11,981 INFO L226 Difference]: Without dead ends: 1606 [2018-09-15 22:34:11,993 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 63 GetRequests, 59 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 22:34:12,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-15 22:34:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-15 22:34:12,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-15 22:34:12,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-15 22:34:12,153 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 64 [2018-09-15 22:34:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:34:12,154 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-15 22:34:12,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 22:34:12,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-15 22:34:12,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-15 22:34:12,165 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:34:12,166 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, 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] [2018-09-15 22:34:12,166 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:34:12,166 INFO L82 PathProgramCache]: Analyzing trace with hash -131464626, now seen corresponding path program 1 times [2018-09-15 22:34:12,167 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:34:12,167 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-15 22:34:12,168 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2279], [2281], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 22:34:12,179 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:34:12,179 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 22:35:28,387 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 22:35:28,388 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 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 22:35:28,395 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 22:36:05,468 INFO L232 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 76.28% of their original sizes. [2018-09-15 22:36:05,468 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 22:36:05,914 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 22:36:05,915 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 22:36:05,915 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 22:36:05,915 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 22:36:05,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 22:36:05,916 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 22:36:05,917 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 22:36:05,917 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 11 states. [2018-09-15 22:36:23,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 22:36:23,174 INFO L93 Difference]: Finished difference Result 3976 states and 6980 transitions. [2018-09-15 22:36:23,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 22:36:23,175 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-09-15 22:36:23,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 22:36:23,190 INFO L225 Difference]: With dead ends: 3976 [2018-09-15 22:36:23,190 INFO L226 Difference]: Without dead ends: 3146 [2018-09-15 22:36:23,195 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 22:36:23,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2018-09-15 22:36:23,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3143. [2018-09-15 22:36:23,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2018-09-15 22:36:23,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3918 transitions. [2018-09-15 22:36:23,277 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3918 transitions. Word has length 140 [2018-09-15 22:36:23,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 22:36:23,278 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 3918 transitions. [2018-09-15 22:36:23,278 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 22:36:23,279 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3918 transitions. [2018-09-15 22:36:23,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-15 22:36:23,285 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 22:36:23,285 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, 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] [2018-09-15 22:36:23,285 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 22:36:23,286 INFO L82 PathProgramCache]: Analyzing trace with hash 392810402, now seen corresponding path program 1 times [2018-09-15 22:36:23,286 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 22:36:23,286 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-09-15 22:36:23,287 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2279], [2281], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-15 22:36:23,292 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-09-15 22:36:23,293 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)