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_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:52:45,417 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:52:45,419 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:52:45,436 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:52:45,437 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:52:45,438 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:52:45,440 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:52:45,443 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:52:45,445 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:52:45,448 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:52:45,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:52:45,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:52:45,452 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:52:45,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:52:45,454 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:52:45,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:52:45,465 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:52:45,466 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:52:45,471 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:52:45,472 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:52:45,475 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:52:45,476 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:52:45,479 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:52:45,479 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:52:45,480 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:52:45,481 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:52:45,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:52:45,483 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:52:45,486 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:52:45,487 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:52:45,487 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:52:45,489 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 03:52:45,489 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:52:45,490 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:52:45,492 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:52:45,493 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:52:45,493 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 03:52:45,519 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:52:45,520 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:52:45,521 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:52:45,521 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:52:45,521 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:52:45,521 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:52:45,522 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:52:45,522 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:52:45,522 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:52:45,522 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:52:45,522 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:52:45,523 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:52:45,524 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:52:45,524 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:52:45,524 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:52:45,524 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:52:45,525 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:52:45,525 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:52:45,525 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:52:45,525 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:52:45,526 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:52:45,526 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:52:45,526 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:52:45,526 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:52:45,527 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:52:45,527 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:52:45,527 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:52:45,527 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:52:45,528 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:52:45,528 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:52:45,528 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:52:45,528 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:52:45,528 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:52:45,529 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:52:45,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:52:45,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:52:45,617 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:52:45,619 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:52:45,619 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:52:45,620 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c [2018-09-19 03:52:45,973 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ca8081f/174687bc57ab4e4e8b7bcd630e858642/FLAGa1113fbae [2018-09-19 03:52:46,433 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:52:46,434 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c [2018-09-19 03:52:46,462 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ca8081f/174687bc57ab4e4e8b7bcd630e858642/FLAGa1113fbae [2018-09-19 03:52:46,482 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/56ca8081f/174687bc57ab4e4e8b7bcd630e858642 [2018-09-19 03:52:46,494 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:52:46,497 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:52:46,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:52:46,498 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:52:46,506 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:52:46,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:52:46" (1/1) ... [2018-09-19 03:52:46,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:46, skipping insertion in model container [2018-09-19 03:52:46,511 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:52:46" (1/1) ... [2018-09-19 03:52:46,524 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:52:47,846 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:52:47,865 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:52:48,449 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:52:48,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48 WrapperNode [2018-09-19 03:52:48,714 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:52:48,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:52:48,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:52:48,715 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:52:48,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:48,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:52:49,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:52:49,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:52:49,439 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:52:49,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,487 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,710 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (1/1) ... [2018-09-19 03:52:49,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:52:49,778 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:52:49,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:52:49,779 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:52:49,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (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 [2018-09-19 03:52:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:52:49,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:52:49,853 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-19 03:52:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-19 03:52:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-19 03:52:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-19 03:52:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 03:52:49,854 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 03:52:49,854 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:52:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:52:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:52:49,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:52:49,855 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:52:49,856 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:52:59,798 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:52:59,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:52:59 BoogieIcfgContainer [2018-09-19 03:52:59,799 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:52:59,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:52:59,800 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:52:59,803 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:52:59,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:52:46" (1/3) ... [2018-09-19 03:52:59,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d8415e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:52:59, skipping insertion in model container [2018-09-19 03:52:59,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:48" (2/3) ... [2018-09-19 03:52:59,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62d8415e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:52:59, skipping insertion in model container [2018-09-19 03:52:59,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:52:59" (3/3) ... [2018-09-19 03:52:59,807 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label56_true-unreach-call.c [2018-09-19 03:52:59,817 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:52:59,827 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:52:59,910 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:52:59,911 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:52:59,911 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:52:59,911 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:52:59,911 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:52:59,911 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:52:59,911 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:52:59,912 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:52:59,912 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:52:59,952 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-19 03:52:59,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-19 03:52:59,963 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:52:59,964 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] [2018-09-19 03:52:59,965 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:52:59,972 INFO L82 PathProgramCache]: Analyzing trace with hash 1384793435, now seen corresponding path program 1 times [2018-09-19 03:52:59,975 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:52:59,976 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 64 with the following transitions: [2018-09-19 03:52:59,980 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], [2271], [2273], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-19 03:53:00,044 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:53:00,045 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:53:02,404 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:53:02,405 INFO L272 AbstractInterpreter]: Visited 62 different actions 62 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 03:53:02,427 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:53:03,405 INFO L232 lantSequenceWeakener]: Weakened 61 states. On average, predicates are now at 78.01% of their original sizes. [2018-09-19 03:53:03,406 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:53:03,701 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:53:03,703 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:53:03,703 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:53:03,703 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:53:03,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:53:03,717 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:53:03,717 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:53:03,720 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-19 03:53:24,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:53:24,892 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-19 03:53:24,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:53:24,894 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2018-09-19 03:53:24,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:53:24,925 INFO L225 Difference]: With dead ends: 2448 [2018-09-19 03:53:24,926 INFO L226 Difference]: Without dead ends: 1606 [2018-09-19 03:53:24,938 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 62 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:53:24,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-19 03:53:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-19 03:53:25,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-19 03:53:25,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-19 03:53:25,111 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 63 [2018-09-19 03:53:25,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:53:25,112 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-19 03:53:25,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:53:25,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-19 03:53:25,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-19 03:53:25,127 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:53:25,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:53:25,128 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:53:25,129 INFO L82 PathProgramCache]: Analyzing trace with hash -693102824, now seen corresponding path program 1 times [2018-09-19 03:53:25,129 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:53:25,129 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 140 with the following transitions: [2018-09-19 03:53:25,130 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], [2271], [2273], [2276], [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] [2018-09-19 03:53:25,139 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:53:25,139 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:53:31,565 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:53:31,566 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. [2018-09-19 03:53:31,576 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:53:32,996 INFO L232 lantSequenceWeakener]: Weakened 137 states. On average, predicates are now at 76.4% of their original sizes. [2018-09-19 03:53:32,996 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:53:33,746 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:53:33,747 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:53:33,747 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 03:53:33,747 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:53:33,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 03:53:33,749 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 03:53:33,750 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 03:53:33,750 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 14 states. [2018-09-19 03:54:11,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:54:11,187 INFO L93 Difference]: Finished difference Result 5514 states and 10027 transitions. [2018-09-19 03:54:11,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 03:54:11,188 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 139 [2018-09-19 03:54:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:54:11,214 INFO L225 Difference]: With dead ends: 5514 [2018-09-19 03:54:11,214 INFO L226 Difference]: Without dead ends: 4684 [2018-09-19 03:54:11,221 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 03:54:11,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4684 states. [2018-09-19 03:54:11,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4684 to 4681. [2018-09-19 03:54:11,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4681 states. [2018-09-19 03:54:11,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4681 states to 4681 states and 5484 transitions. [2018-09-19 03:54:11,359 INFO L78 Accepts]: Start accepts. Automaton has 4681 states and 5484 transitions. Word has length 139 [2018-09-19 03:54:11,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:54:11,360 INFO L480 AbstractCegarLoop]: Abstraction has 4681 states and 5484 transitions. [2018-09-19 03:54:11,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 03:54:11,360 INFO L276 IsEmpty]: Start isEmpty. Operand 4681 states and 5484 transitions. [2018-09-19 03:54:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2018-09-19 03:54:11,376 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:54:11,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:54:11,377 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:54:11,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1265820676, now seen corresponding path program 1 times [2018-09-19 03:54:11,378 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:54:11,378 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 210 with the following transitions: [2018-09-19 03:54:11,379 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], [2271], [2273], [2276], [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] [2018-09-19 03:54:11,392 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:54:11,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:54:17,644 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:54:31,399 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:54:31,400 INFO L272 AbstractInterpreter]: Visited 153 different actions 446 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:54:31,427 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:54:33,437 INFO L232 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 75.93% of their original sizes. [2018-09-19 03:54:33,437 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:54:33,904 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:54:33,905 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:54:33,905 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:54:33,905 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:54:33,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:54:33,906 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:54:33,906 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:54:33,907 INFO L87 Difference]: Start difference. First operand 4681 states and 5484 transitions. Second operand 12 states. [2018-09-19 03:55:05,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:55:05,348 INFO L93 Difference]: Finished difference Result 6286 states and 8585 transitions. [2018-09-19 03:55:05,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:55:05,352 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 209 [2018-09-19 03:55:05,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:55:05,376 INFO L225 Difference]: With dead ends: 6286 [2018-09-19 03:55:05,376 INFO L226 Difference]: Without dead ends: 5456 [2018-09-19 03:55:05,381 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-09-19 03:55:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5456 states. [2018-09-19 03:55:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5456 to 5451. [2018-09-19 03:55:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5451 states. [2018-09-19 03:55:05,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5451 states to 5451 states and 6269 transitions. [2018-09-19 03:55:05,524 INFO L78 Accepts]: Start accepts. Automaton has 5451 states and 6269 transitions. Word has length 209 [2018-09-19 03:55:05,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:55:05,526 INFO L480 AbstractCegarLoop]: Abstraction has 5451 states and 6269 transitions. [2018-09-19 03:55:05,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:55:05,526 INFO L276 IsEmpty]: Start isEmpty. Operand 5451 states and 6269 transitions. [2018-09-19 03:55:05,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-09-19 03:55:05,532 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:55:05,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:55:05,534 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:55:05,534 INFO L82 PathProgramCache]: Analyzing trace with hash -32228276, now seen corresponding path program 1 times [2018-09-19 03:55:05,534 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:55:05,534 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 214 with the following transitions: [2018-09-19 03:55:05,535 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], [2271], [2273], [2276], [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], [2665], [2669], [2673], [2677], [2680], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-09-19 03:55:05,542 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:55:05,543 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:55:12,576 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:55:26,411 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:55:26,411 INFO L272 AbstractInterpreter]: Visited 157 different actions 458 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 03:55:26,416 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:55:27,974 INFO L232 lantSequenceWeakener]: Weakened 211 states. On average, predicates are now at 75.91% of their original sizes. [2018-09-19 03:55:27,974 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:55:28,598 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:55:28,598 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:55:28,598 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 03:55:28,598 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:55:28,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 03:55:28,599 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 03:55:28,600 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 03:55:28,600 INFO L87 Difference]: Start difference. First operand 5451 states and 6269 transitions. Second operand 14 states. [2018-09-19 03:56:02,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:56:02,046 INFO L93 Difference]: Finished difference Result 7157 states and 9570 transitions. [2018-09-19 03:56:02,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 03:56:02,048 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 213 [2018-09-19 03:56:02,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:56:02,075 INFO L225 Difference]: With dead ends: 7157 [2018-09-19 03:56:02,075 INFO L226 Difference]: Without dead ends: 6327 [2018-09-19 03:56:02,083 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 225 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 03:56:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2018-09-19 03:56:02,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6225. [2018-09-19 03:56:02,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6225 states. [2018-09-19 03:56:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6225 states to 6225 states and 7083 transitions. [2018-09-19 03:56:02,230 INFO L78 Accepts]: Start accepts. Automaton has 6225 states and 7083 transitions. Word has length 213 [2018-09-19 03:56:02,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:56:02,230 INFO L480 AbstractCegarLoop]: Abstraction has 6225 states and 7083 transitions. [2018-09-19 03:56:02,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 03:56:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6225 states and 7083 transitions. [2018-09-19 03:56:02,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-09-19 03:56:02,236 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:56:02,237 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:56:02,237 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:56:02,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2104217729, now seen corresponding path program 1 times [2018-09-19 03:56:02,238 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:56:02,238 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 286 with the following transitions: [2018-09-19 03:56:02,238 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], [2271], [2273], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [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] [2018-09-19 03:56:02,243 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:56:02,244 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:56:10,147 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:56:27,819 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:56:27,819 INFO L272 AbstractInterpreter]: Visited 154 different actions 606 times. Merged at 7 different actions 23 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 03:56:27,826 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:56:29,918 INFO L232 lantSequenceWeakener]: Weakened 283 states. On average, predicates are now at 75.71% of their original sizes. [2018-09-19 03:56:29,919 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:56:30,662 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:56:30,662 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:56:30,662 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 03:56:30,662 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:56:30,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 03:56:30,663 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 03:56:30,663 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-19 03:56:30,664 INFO L87 Difference]: Start difference. First operand 6225 states and 7083 transitions. Second operand 16 states. Received shutdown request... [2018-09-19 03:56:55,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:56:55,723 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:56:55,729 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:56:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:56:55 BoogieIcfgContainer [2018-09-19 03:56:55,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:56:55,731 INFO L168 Benchmark]: Toolchain (without parser) took 249236.65 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.6 GB in the end (delta: -2.1 GB). Peak memory consumption was 592.0 MB. Max. memory is 7.1 GB. [2018-09-19 03:56:55,733 INFO L168 Benchmark]: CDTParser took 0.66 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. [2018-09-19 03:56:55,734 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2216.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-19 03:56:55,735 INFO L168 Benchmark]: Boogie Procedure Inliner took 723.40 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 919.1 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:56:55,736 INFO L168 Benchmark]: Boogie Preprocessor took 339.83 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. [2018-09-19 03:56:55,736 INFO L168 Benchmark]: RCFGBuilder took 10020.32 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 656.4 MB). Peak memory consumption was 656.4 MB. Max. memory is 7.1 GB. [2018-09-19 03:56:55,737 INFO L168 Benchmark]: TraceAbstraction took 235930.41 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.6 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:56:55,742 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.66 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 2216.30 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 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 723.40 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 919.1 MB). Free memory was 1.2 GB in the beginning and 2.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 126.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 339.83 ms. Allocated memory is still 2.5 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 39.1 MB). Peak memory consumption was 39.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10020.32 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.7 GB in the end (delta: 656.4 MB). Peak memory consumption was 656.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235930.41 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.6 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 180]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 180). Cancelled while BasicCegarLoop was constructing difference of abstraction (6225states) and FLOYD_HOARE automaton (currently 26 states, 16 states before enhancement), while ReachableStatesComputation was computing reachable states (4195 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 235.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 148.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3692 SDtfs, 21944 SDslu, 1988 SDs, 0 SdLazy, 42227 SolverSat, 5553 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 133.9s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 960 GetRequests, 852 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 597 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6225occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 75.4s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9950662298615838 AbsIntWeakeningRatio, 0.1161504424778761 AbsIntAvgWeakeningVarsNumRemoved, 1074.8982300884957 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 4 MinimizatonAttempts, 112 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label56_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-56-55-756.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label56_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-56-55-756.csv Completed graceful shutdown