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/Problem16_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:27:04,851 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:27:04,853 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:27:04,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:27:04,865 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:27:04,866 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:27:04,868 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:27:04,869 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:27:04,871 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:27:04,872 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:27:04,873 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:27:04,873 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:27:04,874 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:27:04,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:27:04,876 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:27:04,877 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:27:04,878 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:27:04,880 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:27:04,882 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:27:04,883 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:27:04,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:27:04,886 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:27:04,888 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:27:04,889 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:27:04,889 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:27:04,890 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:27:04,891 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:27:04,892 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:27:04,893 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:27:04,894 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:27:04,894 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:27:04,895 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:27:04,895 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:27:04,896 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:27:04,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:27:04,897 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:27:04,898 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 12:27:04,914 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:27:04,914 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:27:04,915 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:27:04,915 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:27:04,916 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:27:04,916 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:27:04,916 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:27:04,916 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:27:04,917 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:27:04,917 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:27:04,917 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:27:04,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:27:04,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:27:04,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:27:04,919 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:27:04,919 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:27:04,919 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:27:04,919 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:27:04,920 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:27:04,920 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:27:04,920 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:27:04,920 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:27:04,920 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:27:04,921 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:27:04,921 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:27:04,921 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:27:04,921 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:27:04,922 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:27:04,922 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:27:04,922 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:27:04,922 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:27:04,922 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:27:04,923 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:27:04,972 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:27:04,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:27:04,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:27:04,990 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:27:04,990 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:27:04,991 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-09-15 12:27:05,328 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5684479ba/6bfb322a89cd4400abcba25814cff84c/FLAG128680ad3 [2018-09-15 12:27:05,679 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:27:05,680 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label35_true-unreach-call.c [2018-09-15 12:27:05,700 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5684479ba/6bfb322a89cd4400abcba25814cff84c/FLAG128680ad3 [2018-09-15 12:27:05,721 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5684479ba/6bfb322a89cd4400abcba25814cff84c [2018-09-15 12:27:05,734 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:27:05,738 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:27:05,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:27:05,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:27:05,749 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:27:05,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:27:05" (1/1) ... [2018-09-15 12:27:05,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2872e34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:05, skipping insertion in model container [2018-09-15 12:27:05,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:27:05" (1/1) ... [2018-09-15 12:27:05,765 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:27:06,503 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:27:06,523 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:27:06,920 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:27:07,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07 WrapperNode [2018-09-15 12:27:07,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:27:07,039 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:27:07,039 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:27:07,039 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:27:07,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:27:07,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:27:07,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:27:07,234 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:27:07,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,746 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... [2018-09-15 12:27:07,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:27:07,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:27:07,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:27:07,773 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:27:07,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:27:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:27:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:27:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 12:27:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 12:27:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:27:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:27:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:27:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:27:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:27:07,850 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:27:15,115 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:27:15,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:27:15 BoogieIcfgContainer [2018-09-15 12:27:15,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:27:15,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:27:15,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:27:15,121 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:27:15,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:27:05" (1/3) ... [2018-09-15 12:27:15,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620cb142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:27:15, skipping insertion in model container [2018-09-15 12:27:15,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:27:07" (2/3) ... [2018-09-15 12:27:15,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620cb142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:27:15, skipping insertion in model container [2018-09-15 12:27:15,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:27:15" (3/3) ... [2018-09-15 12:27:15,125 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label35_true-unreach-call.c [2018-09-15 12:27:15,136 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:27:15,148 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:27:15,220 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:27:15,220 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:27:15,220 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:27:15,221 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:27:15,221 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:27:15,221 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:27:15,221 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:27:15,221 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:27:15,221 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:27:15,253 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-09-15 12:27:15,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-15 12:27:15,263 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:15,264 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] [2018-09-15 12:27:15,265 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:15,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1960867948, now seen corresponding path program 1 times [2018-09-15 12:27:15,274 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:15,275 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 49 with the following transitions: [2018-09-15 12:27:15,278 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [1556], [1560], [1566], [1570], [1579], [1580], [1581], [1583] [2018-09-15 12:27:15,340 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:15,341 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:27:16,619 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:27:16,621 INFO L272 AbstractInterpreter]: Visited 47 different actions 47 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:27:16,637 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:27:17,350 INFO L232 lantSequenceWeakener]: Weakened 46 states. On average, predicates are now at 80.39% of their original sizes. [2018-09-15 12:27:17,350 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:27:17,639 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:27:17,641 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:27:17,642 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:27:17,642 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:27:17,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:27:17,656 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:27:17,656 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:27:17,659 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 6 states. [2018-09-15 12:27:27,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:27:27,395 INFO L93 Difference]: Finished difference Result 1158 states and 2145 transitions. [2018-09-15 12:27:27,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:27:27,397 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2018-09-15 12:27:27,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:27:27,418 INFO L225 Difference]: With dead ends: 1158 [2018-09-15 12:27:27,418 INFO L226 Difference]: Without dead ends: 746 [2018-09-15 12:27:27,426 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 47 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:27:27,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2018-09-15 12:27:27,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 744. [2018-09-15 12:27:27,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-15 12:27:27,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1075 transitions. [2018-09-15 12:27:27,547 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1075 transitions. Word has length 48 [2018-09-15 12:27:27,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:27:27,548 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1075 transitions. [2018-09-15 12:27:27,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:27:27,548 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1075 transitions. [2018-09-15 12:27:27,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-15 12:27:27,561 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:27:27,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:27:27,562 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:27:27,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1008425326, now seen corresponding path program 1 times [2018-09-15 12:27:27,562 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:27:27,563 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-09-15 12:27:27,564 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:27:27,581 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:27:27,581 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:27:30,505 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:27:36,792 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:27:36,792 INFO L272 AbstractInterpreter]: Visited 99 different actions 191 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:27:36,802 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:27:40,088 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 78.41% of their original sizes. [2018-09-15 12:27:40,089 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:27:41,638 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:27:41,638 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:27:41,639 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:27:41,639 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:27:41,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:27:41,642 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:27:41,642 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:27:41,643 INFO L87 Difference]: Start difference. First operand 744 states and 1075 transitions. Second operand 11 states. [2018-09-15 12:28:01,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:28:01,603 INFO L93 Difference]: Finished difference Result 1826 states and 3140 transitions. [2018-09-15 12:28:01,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:28:01,606 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 140 [2018-09-15 12:28:01,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:28:01,616 INFO L225 Difference]: With dead ends: 1826 [2018-09-15 12:28:01,617 INFO L226 Difference]: Without dead ends: 1426 [2018-09-15 12:28:01,620 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 146 GetRequests, 94 SyntacticMatches, 36 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:28:01,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1426 states. [2018-09-15 12:28:01,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1426 to 1423. [2018-09-15 12:28:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1423 states. [2018-09-15 12:28:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 1772 transitions. [2018-09-15 12:28:01,699 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 1772 transitions. Word has length 140 [2018-09-15 12:28:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:28:01,700 INFO L480 AbstractCegarLoop]: Abstraction has 1423 states and 1772 transitions. [2018-09-15 12:28:01,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:28:01,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 1772 transitions. [2018-09-15 12:28:01,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-15 12:28:01,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:01,706 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:28:01,706 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:01,707 INFO L82 PathProgramCache]: Analyzing trace with hash 1802724966, now seen corresponding path program 1 times [2018-09-15 12:28:01,707 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:01,707 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 177 with the following transitions: [2018-09-15 12:28:01,708 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:28:01,714 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:01,714 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:28:04,711 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:28:11,708 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:28:11,708 INFO L272 AbstractInterpreter]: Visited 135 different actions 263 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:28:11,748 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:28:14,986 INFO L232 lantSequenceWeakener]: Weakened 174 states. On average, predicates are now at 78.17% of their original sizes. [2018-09-15 12:28:14,986 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:28:16,050 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:28:16,051 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:28:16,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:28:16,052 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:28:16,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:28:16,053 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:28:16,054 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:28:16,054 INFO L87 Difference]: Start difference. First operand 1423 states and 1772 transitions. Second operand 11 states. [2018-09-15 12:28:33,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:28:33,338 INFO L93 Difference]: Finished difference Result 2505 states and 3837 transitions. [2018-09-15 12:28:33,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:28:33,349 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 176 [2018-09-15 12:28:33,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:28:33,365 INFO L225 Difference]: With dead ends: 2505 [2018-09-15 12:28:33,365 INFO L226 Difference]: Without dead ends: 2105 [2018-09-15 12:28:33,371 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 182 GetRequests, 130 SyntacticMatches, 36 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:28:33,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2018-09-15 12:28:33,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2102. [2018-09-15 12:28:33,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2102 states. [2018-09-15 12:28:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2102 states to 2102 states and 2469 transitions. [2018-09-15 12:28:33,450 INFO L78 Accepts]: Start accepts. Automaton has 2102 states and 2469 transitions. Word has length 176 [2018-09-15 12:28:33,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:28:33,451 INFO L480 AbstractCegarLoop]: Abstraction has 2102 states and 2469 transitions. [2018-09-15 12:28:33,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:28:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2102 states and 2469 transitions. [2018-09-15 12:28:33,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-15 12:28:33,462 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:28:33,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:28:33,462 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:28:33,463 INFO L82 PathProgramCache]: Analyzing trace with hash -816377169, now seen corresponding path program 1 times [2018-09-15 12:28:33,463 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:28:33,463 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-15 12:28:33,465 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1004], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:28:33,478 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:28:33,479 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:28:36,844 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:28:44,594 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:28:44,595 INFO L272 AbstractInterpreter]: Visited 160 different actions 313 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:28:44,626 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:28:47,536 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 78.06% of their original sizes. [2018-09-15 12:28:47,536 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:28:48,673 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:28:48,673 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:28:48,674 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:28:48,674 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:28:48,675 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:28:48,676 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:28:48,676 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:28:48,676 INFO L87 Difference]: Start difference. First operand 2102 states and 2469 transitions. Second operand 12 states. [2018-09-15 12:29:06,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:29:06,061 INFO L93 Difference]: Finished difference Result 3184 states and 4534 transitions. [2018-09-15 12:29:06,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:29:06,061 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 201 [2018-09-15 12:29:06,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:29:06,076 INFO L225 Difference]: With dead ends: 3184 [2018-09-15 12:29:06,076 INFO L226 Difference]: Without dead ends: 2784 [2018-09-15 12:29:06,080 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 208 GetRequests, 154 SyntacticMatches, 36 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:29:06,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2018-09-15 12:29:06,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 2781. [2018-09-15 12:29:06,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2781 states. [2018-09-15 12:29:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2781 states to 2781 states and 3166 transitions. [2018-09-15 12:29:06,178 INFO L78 Accepts]: Start accepts. Automaton has 2781 states and 3166 transitions. Word has length 201 [2018-09-15 12:29:06,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:29:06,179 INFO L480 AbstractCegarLoop]: Abstraction has 2781 states and 3166 transitions. [2018-09-15 12:29:06,179 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:29:06,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2781 states and 3166 transitions. [2018-09-15 12:29:06,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-09-15 12:29:06,184 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:29:06,185 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:06,185 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:29:06,185 INFO L82 PathProgramCache]: Analyzing trace with hash -2111292449, now seen corresponding path program 1 times [2018-09-15 12:29:06,186 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:29:06,186 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-09-15 12:29:06,186 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1164], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:29:06,193 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:29:06,193 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:24,372 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:29:24,373 INFO L272 AbstractInterpreter]: Visited 200 different actions 393 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:29:24,415 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:29:28,526 INFO L232 lantSequenceWeakener]: Weakened 239 states. On average, predicates are now at 77.93% of their original sizes. [2018-09-15 12:29:28,526 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:29:29,677 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:29:29,677 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:29:29,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-15 12:29:29,678 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:29:29,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-15 12:29:29,679 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-15 12:29:29,679 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-15 12:29:29,680 INFO L87 Difference]: Start difference. First operand 2781 states and 3166 transitions. Second operand 12 states. [2018-09-15 12:29:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:29:45,837 INFO L93 Difference]: Finished difference Result 3863 states and 5231 transitions. [2018-09-15 12:29:45,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-15 12:29:45,838 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 241 [2018-09-15 12:29:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:29:45,854 INFO L225 Difference]: With dead ends: 3863 [2018-09-15 12:29:45,854 INFO L226 Difference]: Without dead ends: 3463 [2018-09-15 12:29:45,859 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 248 GetRequests, 194 SyntacticMatches, 36 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 422 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:29:45,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3463 states. [2018-09-15 12:29:45,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3463 to 3460. [2018-09-15 12:29:45,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3460 states. [2018-09-15 12:29:45,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3460 states to 3460 states and 3863 transitions. [2018-09-15 12:29:45,991 INFO L78 Accepts]: Start accepts. Automaton has 3460 states and 3863 transitions. Word has length 241 [2018-09-15 12:29:45,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:29:45,992 INFO L480 AbstractCegarLoop]: Abstraction has 3460 states and 3863 transitions. [2018-09-15 12:29:45,992 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-15 12:29:45,992 INFO L276 IsEmpty]: Start isEmpty. Operand 3460 states and 3863 transitions. [2018-09-15 12:29:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-09-15 12:29:45,999 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:29:45,999 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:29:45,999 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:29:46,000 INFO L82 PathProgramCache]: Analyzing trace with hash 723265384, now seen corresponding path program 1 times [2018-09-15 12:29:46,000 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:29:46,000 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-09-15 12:29:46,001 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:29:46,004 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:29:46,005 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:29:47,987 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:30:08,384 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:08,384 INFO L272 AbstractInterpreter]: Visited 136 different actions 665 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:30:08,393 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:30:10,398 INFO L232 lantSequenceWeakener]: Weakened 266 states. On average, predicates are now at 77.9% of their original sizes. [2018-09-15 12:30:10,398 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:30:11,349 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:30:11,349 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:30:11,350 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:30:11,350 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:30:11,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:30:11,351 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:30:11,351 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:30:11,352 INFO L87 Difference]: Start difference. First operand 3460 states and 3863 transitions. Second operand 11 states. [2018-09-15 12:30:29,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:30:29,293 INFO L93 Difference]: Finished difference Result 4496 states and 5839 transitions. [2018-09-15 12:30:29,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-15 12:30:29,294 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 268 [2018-09-15 12:30:29,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:30:29,310 INFO L225 Difference]: With dead ends: 4496 [2018-09-15 12:30:29,310 INFO L226 Difference]: Without dead ends: 4096 [2018-09-15 12:30:29,314 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 277 GetRequests, 222 SyntacticMatches, 36 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-09-15 12:30:29,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4096 states. [2018-09-15 12:30:29,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4096 to 3814. [2018-09-15 12:30:29,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3814 states. [2018-09-15 12:30:29,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3814 states to 3814 states and 4252 transitions. [2018-09-15 12:30:29,487 INFO L78 Accepts]: Start accepts. Automaton has 3814 states and 4252 transitions. Word has length 268 [2018-09-15 12:30:29,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:30:29,488 INFO L480 AbstractCegarLoop]: Abstraction has 3814 states and 4252 transitions. [2018-09-15 12:30:29,488 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:30:29,488 INFO L276 IsEmpty]: Start isEmpty. Operand 3814 states and 4252 transitions. [2018-09-15 12:30:29,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2018-09-15 12:30:29,495 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:30:29,496 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:29,496 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:30:29,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1428144262, now seen corresponding path program 1 times [2018-09-15 12:30:29,497 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:30:29,497 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 289 with the following transitions: [2018-09-15 12:30:29,497 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [463], [465], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-09-15 12:30:29,504 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:30:29,504 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:30:58,059 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:30:58,060 INFO L272 AbstractInterpreter]: Visited 247 different actions 488 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-15 12:30:58,069 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:31:03,643 INFO L232 lantSequenceWeakener]: Weakened 286 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-15 12:31:03,643 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:31:04,863 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:31:04,863 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:31:04,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-15 12:31:04,864 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:31:04,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-15 12:31:04,865 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-15 12:31:04,865 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-15 12:31:04,866 INFO L87 Difference]: Start difference. First operand 3814 states and 4252 transitions. Second operand 13 states. Received shutdown request... [2018-09-15 12:31:07,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-15 12:31:07,014 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:31:07,019 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:31:07,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:31:07 BoogieIcfgContainer [2018-09-15 12:31:07,020 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:31:07,021 INFO L168 Benchmark]: Toolchain (without parser) took 241285.47 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -445.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-15 12:31:07,023 INFO L168 Benchmark]: CDTParser took 0.21 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 12:31:07,023 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1298.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:07,024 INFO L168 Benchmark]: Boogie Procedure Inliner took 194.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:07,025 INFO L168 Benchmark]: Boogie Preprocessor took 538.67 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -980.3 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:07,026 INFO L168 Benchmark]: RCFGBuilder took 7343.23 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 256.6 MB). Peak memory consumption was 256.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:31:07,026 INFO L168 Benchmark]: TraceAbstraction took 231902.86 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 151.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-15 12:31:07,032 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1298.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 194.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 538.67 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 832.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -980.3 MB). Peak memory consumption was 61.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7343.23 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 256.6 MB). Peak memory consumption was 256.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231902.86 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 1.9 GB in the end (delta: 151.9 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 130]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 130). Cancelled while BasicCegarLoop was constructing difference of abstraction (3814states) and FLOYD_HOARE automaton (currently 7 states, 13 states before enhancement), while ReachableStatesComputation was computing reachable states (115 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 231.8s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 100.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2446 SDtfs, 10517 SDslu, 1692 SDs, 0 SdLazy, 20913 SolverSat, 3557 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 91.4s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 1399 GetRequests, 1077 SyntacticMatches, 216 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2190 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3814occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 101.0s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9952215480652827 AbsIntWeakeningRatio, 0.1033210332103321 AbsIntAvgWeakeningVarsNumRemoved, 112.21033210332104 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 296 StatesRemovedByMinimization, 6 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/Problem16_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-31-07-048.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem16_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-31-07-048.csv Completed graceful shutdown