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_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:47:17,472 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:47:17,476 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:47:17,495 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:47:17,496 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:47:17,497 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:47:17,498 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:47:17,500 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:47:17,501 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:47:17,502 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:47:17,503 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:47:17,503 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:47:17,504 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:47:17,505 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:47:17,506 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:47:17,507 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:47:17,508 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:47:17,510 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:47:17,512 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:47:17,513 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:47:17,514 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:47:17,516 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:47:17,518 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:47:17,518 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:47:17,518 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:47:17,519 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:47:17,521 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:47:17,521 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:47:17,522 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:47:17,523 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:47:17,523 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:47:17,524 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:47:17,524 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:47:17,525 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:47:17,526 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:47:17,526 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:47:17,527 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 [2018-09-15 11:47:17,550 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:47:17,551 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:47:17,552 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:47:17,552 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:47:17,552 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:47:17,552 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:47:17,552 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:47:17,553 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:47:17,553 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:47:17,553 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:47:17,553 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:47:17,554 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:47:17,554 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:47:17,558 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:47:17,559 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:47:17,559 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:47:17,559 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:47:17,559 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:47:17,559 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:47:17,560 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:47:17,560 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:47:17,560 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:47:17,560 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:47:17,560 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:47:17,561 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:47:17,561 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:47:17,561 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:47:17,561 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:47:17,563 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:47:17,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:47:17,563 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:47:17,564 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:47:17,564 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:47:17,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:47:17,645 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:47:17,651 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:47:17,653 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:47:17,653 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:47:17,654 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label24_true-unreach-call.c [2018-09-15 11:47:18,007 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f563d637/e65b57e80ea648e4873456b9f0d719ee/FLAGa36cddafa [2018-09-15 11:47:18,514 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:47:18,515 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label24_true-unreach-call.c [2018-09-15 11:47:18,560 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f563d637/e65b57e80ea648e4873456b9f0d719ee/FLAGa36cddafa [2018-09-15 11:47:18,580 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f563d637/e65b57e80ea648e4873456b9f0d719ee [2018-09-15 11:47:18,593 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:47:18,597 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:47:18,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:47:18,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:47:18,610 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:47:18,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:47:18" (1/1) ... [2018-09-15 11:47:18,614 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f57d78e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:18, skipping insertion in model container [2018-09-15 11:47:18,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:47:18" (1/1) ... [2018-09-15 11:47:18,627 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:47:19,814 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:47:19,836 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:47:20,474 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:47:20,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20 WrapperNode [2018-09-15 11:47:20,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:47:20,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:47:20,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:47:20,706 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:47:20,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:20,807 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:20,959 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:47:20,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:47:20,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:47:20,960 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:47:21,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,692 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (1/1) ... [2018-09-15 11:47:21,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:47:21,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:47:21,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:47:21,776 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:47:21,778 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (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 11:47:21,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:47:21,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:47:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-15 11:47:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-15 11:47:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 11:47:21,858 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 11:47:21,858 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 11:47:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 11:47:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:47:21,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:47:21,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:47:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:47:21,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:47:21,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:47:34,159 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:47:34,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:47:34 BoogieIcfgContainer [2018-09-15 11:47:34,160 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:47:34,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:47:34,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:47:34,164 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:47:34,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:47:18" (1/3) ... [2018-09-15 11:47:34,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a43a0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:47:34, skipping insertion in model container [2018-09-15 11:47:34,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:47:20" (2/3) ... [2018-09-15 11:47:34,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a43a0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:47:34, skipping insertion in model container [2018-09-15 11:47:34,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:47:34" (3/3) ... [2018-09-15 11:47:34,168 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label24_true-unreach-call.c [2018-09-15 11:47:34,178 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:47:34,190 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:47:34,257 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:47:34,257 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:47:34,257 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:47:34,258 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:47:34,258 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:47:34,258 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:47:34,258 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:47:34,258 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:47:34,259 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:47:34,299 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-15 11:47:34,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-15 11:47:34,308 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:47:34,310 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 11:47:34,311 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:47:34,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1344002707, now seen corresponding path program 1 times [2018-09-15 11:47:34,318 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:47:34,319 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 54 with the following transitions: [2018-09-15 11:47:34,322 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], [2191], [2193], [3244], [3248], [3254], [3258], [3271], [3272], [3273], [3275] [2018-09-15 11:47:34,385 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:47:34,385 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:47:36,570 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:47:36,572 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 11:47:36,631 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:47:37,567 INFO L232 lantSequenceWeakener]: Weakened 51 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-15 11:47:37,567 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:47:37,939 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:47:37,941 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:47:37,941 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:47:37,942 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:47:37,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:47:37,955 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:47:37,956 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:47:37,959 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 6 states. [2018-09-15 11:47:58,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:47:58,939 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-09-15 11:47:58,943 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:47:58,944 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 53 [2018-09-15 11:47:58,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:47:58,981 INFO L225 Difference]: With dead ends: 2448 [2018-09-15 11:47:58,981 INFO L226 Difference]: Without dead ends: 1606 [2018-09-15 11:47:58,991 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:47:59,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-09-15 11:47:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-09-15 11:47:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-09-15 11:47:59,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-09-15 11:47:59,156 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 53 [2018-09-15 11:47:59,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:47:59,159 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-09-15 11:47:59,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:47:59,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-09-15 11:47:59,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-15 11:47:59,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:47:59,172 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] [2018-09-15 11:47:59,172 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:47:59,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1515805392, now seen corresponding path program 1 times [2018-09-15 11:47:59,173 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:47:59,173 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-15 11:47:59,174 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], [2191], [2193], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [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] [2018-09-15 11:47:59,184 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:47:59,185 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:48:08,365 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:48:08,366 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 11:48:08,377 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:48:12,136 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 76.21% of their original sizes. [2018-09-15 11:48:12,136 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:48:14,036 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:48:14,037 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:48:14,037 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:48:14,037 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:48:14,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:48:14,040 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:48:14,040 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:48:14,041 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 11 states. [2018-09-15 11:49:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:49:06,310 INFO L93 Difference]: Finished difference Result 3976 states and 6980 transitions. [2018-09-15 11:49:06,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:49:06,311 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 129 [2018-09-15 11:49:06,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:49:06,329 INFO L225 Difference]: With dead ends: 3976 [2018-09-15 11:49:06,329 INFO L226 Difference]: Without dead ends: 3146 [2018-09-15 11:49:06,335 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 78 SyntacticMatches, 41 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 11:49:06,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2018-09-15 11:49:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3143. [2018-09-15 11:49:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2018-09-15 11:49:06,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3918 transitions. [2018-09-15 11:49:06,445 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3918 transitions. Word has length 129 [2018-09-15 11:49:06,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:49:06,446 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 3918 transitions. [2018-09-15 11:49:06,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:49:06,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3918 transitions. [2018-09-15 11:49:06,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-15 11:49:06,451 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:49:06,452 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] [2018-09-15 11:49:06,452 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:49:06,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1061916388, now seen corresponding path program 1 times [2018-09-15 11:49:06,453 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:49:06,453 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-09-15 11:49:06,453 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], [2191], [2193], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [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] [2018-09-15 11:49:06,464 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:49:06,465 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:49:12,381 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:49:36,362 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:49:36,363 INFO L272 AbstractInterpreter]: Visited 153 different actions 300 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 11:49:36,401 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:49:42,906 INFO L232 lantSequenceWeakener]: Weakened 197 states. On average, predicates are now at 75.78% of their original sizes. [2018-09-15 11:49:42,907 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:49:44,889 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:49:44,890 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:49:44,890 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 11:49:44,890 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:49:44,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 11:49:44,891 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 11:49:44,891 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 11:49:44,892 INFO L87 Difference]: Start difference. First operand 3143 states and 3918 transitions. Second operand 13 states. [2018-09-15 11:50:33,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:50:33,360 INFO L93 Difference]: Finished difference Result 4746 states and 7018 transitions. [2018-09-15 11:50:33,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-15 11:50:33,370 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 199 [2018-09-15 11:50:33,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:50:33,389 INFO L225 Difference]: With dead ends: 4746 [2018-09-15 11:50:33,389 INFO L226 Difference]: Without dead ends: 3916 [2018-09-15 11:50:33,393 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 146 SyntacticMatches, 41 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 463 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=127, Invalid=425, Unknown=0, NotChecked=0, Total=552 [2018-09-15 11:50:33,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2018-09-15 11:50:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3913. [2018-09-15 11:50:33,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3913 states. [2018-09-15 11:50:33,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3913 states to 3913 states and 4704 transitions. [2018-09-15 11:50:33,520 INFO L78 Accepts]: Start accepts. Automaton has 3913 states and 4704 transitions. Word has length 199 [2018-09-15 11:50:33,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:50:33,522 INFO L480 AbstractCegarLoop]: Abstraction has 3913 states and 4704 transitions. [2018-09-15 11:50:33,522 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-15 11:50:33,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3913 states and 4704 transitions. [2018-09-15 11:50:33,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-09-15 11:50:33,526 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:50:33,527 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] [2018-09-15 11:50:33,527 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:50:33,531 INFO L82 PathProgramCache]: Analyzing trace with hash -1767066780, now seen corresponding path program 1 times [2018-09-15 11:50:33,532 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:50:33,532 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-09-15 11:50:33,532 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], [2191], [2193], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [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] [2018-09-15 11:50:33,548 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:50:33,548 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:50:39,385 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:51:00,538 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:51:00,538 INFO L272 AbstractInterpreter]: Visited 157 different actions 308 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-15 11:51:00,542 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:51:06,344 INFO L232 lantSequenceWeakener]: Weakened 201 states. On average, predicates are now at 75.77% of their original sizes. [2018-09-15 11:51:06,345 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:51:08,362 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:51:08,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:51:08,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-15 11:51:08,363 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:51:08,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-15 11:51:08,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-15 11:51:08,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-15 11:51:08,375 INFO L87 Difference]: Start difference. First operand 3913 states and 4704 transitions. Second operand 14 states. Received shutdown request... [2018-09-15 11:51:22,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-15 11:51:22,737 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 11:51:22,742 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 11:51:22,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 11:51:22 BoogieIcfgContainer [2018-09-15 11:51:22,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 11:51:22,744 INFO L168 Benchmark]: Toolchain (without parser) took 244150.07 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 1.6 GB in the end (delta: -238.4 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-15 11:51:22,746 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-15 11:51:22,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2103.55 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. [2018-09-15 11:51:22,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 253.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 11:51:22,748 INFO L168 Benchmark]: Boogie Preprocessor took 814.88 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 919.6 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. [2018-09-15 11:51:22,749 INFO L168 Benchmark]: RCFGBuilder took 12384.58 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: 659.7 MB). Peak memory consumption was 659.7 MB. Max. memory is 7.1 GB. [2018-09-15 11:51:22,750 INFO L168 Benchmark]: TraceAbstraction took 228581.96 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 1.6 GB in the end (delta: 12.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-15 11:51:22,755 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2103.55 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 253.94 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 814.88 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 919.6 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 127.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12384.58 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: 659.7 MB). Peak memory consumption was 659.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228581.96 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 1.6 GB in the end (delta: 12.6 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 150]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 150). Cancelled while BasicCegarLoop was constructing difference of abstraction (3913states) and FLOYD_HOARE automaton (currently 19 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (1558 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 228.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 136.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2705 SDtfs, 7482 SDslu, 1957 SDs, 0 SdLazy, 32503 SolverSat, 3159 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 125.1s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 611 GetRequests, 421 SyntacticMatches, 123 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1313 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3913occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 68.4s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9942517683465957 AbsIntWeakeningRatio, 0.13448275862068965 AbsIntAvgWeakeningVarsNumRemoved, 108.78103448275863 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 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_label24_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_11-51-22-770.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label24_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_11-51-22-770.csv Completed graceful shutdown