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/Problem14_label01_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 12:03:47,861 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 12:03:47,863 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 12:03:47,875 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 12:03:47,875 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 12:03:47,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 12:03:47,878 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 12:03:47,879 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 12:03:47,881 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 12:03:47,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 12:03:47,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 12:03:47,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 12:03:47,884 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 12:03:47,885 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 12:03:47,886 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 12:03:47,887 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 12:03:47,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 12:03:47,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 12:03:47,892 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 12:03:47,893 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 12:03:47,894 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 12:03:47,899 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 12:03:47,903 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 12:03:47,903 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 12:03:47,903 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 12:03:47,904 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 12:03:47,905 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 12:03:47,906 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 12:03:47,906 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 12:03:47,907 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 12:03:47,908 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 12:03:47,908 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 12:03:47,908 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 12:03:47,909 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 12:03:47,910 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 12:03:47,910 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 12:03:47,911 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 12:03:47,936 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 12:03:47,936 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 12:03:47,937 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 12:03:47,937 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 12:03:47,937 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 12:03:47,937 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 12:03:47,939 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 12:03:47,939 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 12:03:47,939 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 12:03:47,940 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 12:03:47,940 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 12:03:47,941 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 12:03:47,941 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 12:03:47,941 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 12:03:47,941 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 12:03:47,942 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 12:03:47,942 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 12:03:47,942 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 12:03:47,942 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 12:03:47,942 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 12:03:47,943 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 12:03:47,943 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 12:03:47,943 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 12:03:47,943 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 12:03:47,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 12:03:47,944 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 12:03:47,945 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 12:03:47,945 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 12:03:47,945 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 12:03:47,945 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 12:03:47,945 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 12:03:47,946 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 12:03:47,946 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 12:03:47,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 12:03:48,005 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 12:03:48,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 12:03:48,011 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 12:03:48,011 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 12:03:48,012 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01_true-unreach-call_false-termination.c [2018-09-15 12:03:48,359 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd640b21/cf48c61d75a64193aae9190c80488c9c/FLAG604923caf [2018-09-15 12:03:48,662 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 12:03:48,663 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label01_true-unreach-call_false-termination.c [2018-09-15 12:03:48,690 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd640b21/cf48c61d75a64193aae9190c80488c9c/FLAG604923caf [2018-09-15 12:03:48,712 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/afd640b21/cf48c61d75a64193aae9190c80488c9c [2018-09-15 12:03:48,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 12:03:48,728 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 12:03:48,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 12:03:48,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 12:03:48,737 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 12:03:48,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:03:48" (1/1) ... [2018-09-15 12:03:48,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58f15d96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:48, skipping insertion in model container [2018-09-15 12:03:48,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 12:03:48" (1/1) ... [2018-09-15 12:03:48,754 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 12:03:49,290 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:03:49,307 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 12:03:49,436 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 12:03:49,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49 WrapperNode [2018-09-15 12:03:49,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 12:03:49,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 12:03:49,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 12:03:49,514 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 12:03:49,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 12:03:49,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 12:03:49,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 12:03:49,659 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 12:03:49,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,842 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,915 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (1/1) ... [2018-09-15 12:03:49,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 12:03:49,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 12:03:49,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 12:03:49,950 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 12:03:49,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (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 12:03:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 12:03:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 12:03:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 12:03:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 12:03:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 12:03:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 12:03:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 12:03:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 12:03:54,103 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 12:03:54,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:03:54 BoogieIcfgContainer [2018-09-15 12:03:54,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 12:03:54,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 12:03:54,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 12:03:54,112 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 12:03:54,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 12:03:48" (1/3) ... [2018-09-15 12:03:54,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576fe912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:03:54, skipping insertion in model container [2018-09-15 12:03:54,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 12:03:49" (2/3) ... [2018-09-15 12:03:54,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@576fe912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 12:03:54, skipping insertion in model container [2018-09-15 12:03:54,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 12:03:54" (3/3) ... [2018-09-15 12:03:54,117 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label01_true-unreach-call_false-termination.c [2018-09-15 12:03:54,127 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 12:03:54,138 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 12:03:54,198 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 12:03:54,199 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 12:03:54,199 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 12:03:54,200 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 12:03:54,200 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 12:03:54,200 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 12:03:54,200 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 12:03:54,200 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 12:03:54,201 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 12:03:54,236 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-15 12:03:54,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-15 12:03:54,248 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:03:54,249 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:03:54,250 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:03:54,255 INFO L82 PathProgramCache]: Analyzing trace with hash 105664553, now seen corresponding path program 1 times [2018-09-15 12:03:54,257 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:03:54,258 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 62 with the following transitions: [2018-09-15 12:03:54,260 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [952], [956], [962], [966], [973], [974], [975], [977] [2018-09-15 12:03:54,324 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:03:54,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:03:55,902 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:03:55,904 INFO L272 AbstractInterpreter]: Visited 60 different actions 60 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 12:03:55,922 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:03:56,669 INFO L232 lantSequenceWeakener]: Weakened 59 states. On average, predicates are now at 80.71% of their original sizes. [2018-09-15 12:03:56,670 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:03:56,975 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:03:56,976 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:03:56,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 12:03:56,977 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:03:56,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 12:03:56,991 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 12:03:56,992 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 12:03:56,995 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-09-15 12:04:01,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:04:01,727 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-09-15 12:04:01,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 12:04:01,730 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2018-09-15 12:04:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:04:01,748 INFO L225 Difference]: With dead ends: 693 [2018-09-15 12:04:01,748 INFO L226 Difference]: Without dead ends: 436 [2018-09-15 12:04:01,756 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 60 GetRequests, 56 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 12:04:01,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-09-15 12:04:01,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-09-15 12:04:01,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-09-15 12:04:01,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-09-15 12:04:01,836 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 61 [2018-09-15 12:04:01,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:04:01,837 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-09-15 12:04:01,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 12:04:01,837 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-09-15 12:04:01,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-15 12:04:01,845 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:04:01,845 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:01,846 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:04:01,846 INFO L82 PathProgramCache]: Analyzing trace with hash -789821893, now seen corresponding path program 1 times [2018-09-15 12:04:01,846 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:04:01,847 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-15 12:04:01,847 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:04:01,856 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:04:01,856 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:04:09,002 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:04:09,003 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 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 12:04:09,015 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:04:11,575 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 78.77% of their original sizes. [2018-09-15 12:04:11,575 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:04:13,361 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:04:13,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:04:13,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:04:13,362 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:04:13,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:04:13,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:04:13,365 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:04:13,366 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-09-15 12:04:22,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:04:22,148 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-09-15 12:04:22,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 12:04:22,149 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2018-09-15 12:04:22,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:04:22,158 INFO L225 Difference]: With dead ends: 1051 [2018-09-15 12:04:22,158 INFO L226 Difference]: Without dead ends: 806 [2018-09-15 12:04:22,161 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 152 GetRequests, 87 SyntacticMatches, 49 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:04:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-09-15 12:04:22,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-09-15 12:04:22,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-09-15 12:04:22,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-09-15 12:04:22,221 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 146 [2018-09-15 12:04:22,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:04:22,222 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-09-15 12:04:22,223 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:04:22,223 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-09-15 12:04:22,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-09-15 12:04:22,228 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:04:22,228 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:22,229 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:04:22,229 INFO L82 PathProgramCache]: Analyzing trace with hash -1883768817, now seen corresponding path program 1 times [2018-09-15 12:04:22,229 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:04:22,230 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-09-15 12:04:22,230 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:04:22,239 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:04:22,239 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:04:34,757 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:04:34,757 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 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 12:04:34,767 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:04:38,268 INFO L232 lantSequenceWeakener]: Weakened 170 states. On average, predicates are now at 78.54% of their original sizes. [2018-09-15 12:04:38,269 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:04:39,455 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:04:39,456 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:04:39,457 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:04:39,457 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:04:39,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:04:39,458 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:04:39,459 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:04:39,459 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-09-15 12:04:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:04:45,920 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-09-15 12:04:45,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 12:04:45,923 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 172 [2018-09-15 12:04:45,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:04:45,931 INFO L225 Difference]: With dead ends: 1236 [2018-09-15 12:04:45,931 INFO L226 Difference]: Without dead ends: 991 [2018-09-15 12:04:45,933 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 113 SyntacticMatches, 49 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 391 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 12:04:45,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-09-15 12:04:45,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-09-15 12:04:45,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-09-15 12:04:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-09-15 12:04:45,995 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 172 [2018-09-15 12:04:45,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:04:45,995 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-09-15 12:04:45,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:04:45,996 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-09-15 12:04:46,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2018-09-15 12:04:46,003 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:04:46,005 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:04:46,005 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:04:46,005 INFO L82 PathProgramCache]: Analyzing trace with hash 877671357, now seen corresponding path program 1 times [2018-09-15 12:04:46,005 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:04:46,007 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 258 with the following transitions: [2018-09-15 12:04:46,008 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [554], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:04:46,019 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:04:46,019 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:04:56,198 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:04:56,198 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:04:56,203 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:04:58,018 INFO L232 lantSequenceWeakener]: Weakened 255 states. On average, predicates are now at 78.14% of their original sizes. [2018-09-15 12:04:58,018 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:04:59,223 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:04:59,224 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:04:59,224 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-15 12:04:59,224 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:04:59,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-15 12:04:59,226 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-15 12:04:59,226 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2018-09-15 12:04:59,227 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 16 states. [2018-09-15 12:05:10,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:05:10,955 INFO L93 Difference]: Finished difference Result 2043 states and 3188 transitions. [2018-09-15 12:05:10,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-15 12:05:10,956 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 257 [2018-09-15 12:05:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:05:10,967 INFO L225 Difference]: With dead ends: 2043 [2018-09-15 12:05:10,967 INFO L226 Difference]: Without dead ends: 1798 [2018-09-15 12:05:10,971 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 275 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=260, Invalid=930, Unknown=0, NotChecked=0, Total=1190 [2018-09-15 12:05:10,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2018-09-15 12:05:11,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1605. [2018-09-15 12:05:11,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1605 states. [2018-09-15 12:05:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1605 states to 1605 states and 1893 transitions. [2018-09-15 12:05:11,028 INFO L78 Accepts]: Start accepts. Automaton has 1605 states and 1893 transitions. Word has length 257 [2018-09-15 12:05:11,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:05:11,028 INFO L480 AbstractCegarLoop]: Abstraction has 1605 states and 1893 transitions. [2018-09-15 12:05:11,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-15 12:05:11,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1605 states and 1893 transitions. [2018-09-15 12:05:11,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2018-09-15 12:05:11,035 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:05:11,035 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-15 12:05:11,035 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:05:11,036 INFO L82 PathProgramCache]: Analyzing trace with hash -590191430, now seen corresponding path program 1 times [2018-09-15 12:05:11,036 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:05:11,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 283 with the following transitions: [2018-09-15 12:05:11,037 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:05:11,044 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:05:11,044 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:05:23,261 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:05:39,839 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:05:39,840 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:05:39,849 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:05:43,627 INFO L232 lantSequenceWeakener]: Weakened 280 states. On average, predicates are now at 78.08% of their original sizes. [2018-09-15 12:05:43,628 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:05:44,785 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:05:44,786 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:05:44,786 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 12:05:44,786 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:05:44,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 12:05:44,787 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 12:05:44,788 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 12:05:44,788 INFO L87 Difference]: Start difference. First operand 1605 states and 1893 transitions. Second operand 11 states. [2018-09-15 12:05:52,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:05:52,027 INFO L93 Difference]: Finished difference Result 2044 states and 2683 transitions. [2018-09-15 12:05:52,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:05:52,033 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 282 [2018-09-15 12:05:52,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:05:52,042 INFO L225 Difference]: With dead ends: 2044 [2018-09-15 12:05:52,042 INFO L226 Difference]: Without dead ends: 1799 [2018-09-15 12:05:52,045 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 290 GetRequests, 223 SyntacticMatches, 49 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-15 12:05:52,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1799 states. [2018-09-15 12:05:52,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1799 to 1792. [2018-09-15 12:05:52,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1792 states. [2018-09-15 12:05:52,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1792 states to 1792 states and 2111 transitions. [2018-09-15 12:05:52,113 INFO L78 Accepts]: Start accepts. Automaton has 1792 states and 2111 transitions. Word has length 282 [2018-09-15 12:05:52,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:05:52,113 INFO L480 AbstractCegarLoop]: Abstraction has 1792 states and 2111 transitions. [2018-09-15 12:05:52,114 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 12:05:52,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1792 states and 2111 transitions. [2018-09-15 12:05:52,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-09-15 12:05:52,123 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:05:52,123 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:05:52,124 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:05:52,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1510155237, now seen corresponding path program 1 times [2018-09-15 12:05:52,124 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:05:52,124 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 361 with the following transitions: [2018-09-15 12:05:52,125 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:05:52,129 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:05:52,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:06:04,169 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:06:22,576 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:06:22,576 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:06:22,613 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:06:24,697 INFO L232 lantSequenceWeakener]: Weakened 358 states. On average, predicates are now at 77.92% of their original sizes. [2018-09-15 12:06:24,697 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:06:24,976 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:06:24,977 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:06:24,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:06:24,977 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:06:24,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:06:24,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:06:24,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:06:24,978 INFO L87 Difference]: Start difference. First operand 1792 states and 2111 transitions. Second operand 10 states. [2018-09-15 12:06:32,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:06:32,211 INFO L93 Difference]: Finished difference Result 2449 states and 3152 transitions. [2018-09-15 12:06:32,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-15 12:06:32,213 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 360 [2018-09-15 12:06:32,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:06:32,222 INFO L225 Difference]: With dead ends: 2449 [2018-09-15 12:06:32,222 INFO L226 Difference]: Without dead ends: 2017 [2018-09-15 12:06:32,225 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 367 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:06:32,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2017 states. [2018-09-15 12:06:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2017 to 1999. [2018-09-15 12:06:32,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1999 states. [2018-09-15 12:06:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1999 states to 1999 states and 2367 transitions. [2018-09-15 12:06:32,294 INFO L78 Accepts]: Start accepts. Automaton has 1999 states and 2367 transitions. Word has length 360 [2018-09-15 12:06:32,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:06:32,295 INFO L480 AbstractCegarLoop]: Abstraction has 1999 states and 2367 transitions. [2018-09-15 12:06:32,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:06:32,295 INFO L276 IsEmpty]: Start isEmpty. Operand 1999 states and 2367 transitions. [2018-09-15 12:06:32,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-09-15 12:06:32,301 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:06:32,302 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:06:32,302 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:06:32,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1715691475, now seen corresponding path program 1 times [2018-09-15 12:06:32,302 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:06:32,303 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 365 with the following transitions: [2018-09-15 12:06:32,303 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [542], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:06:32,306 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:06:32,307 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:06:43,632 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:07:12,102 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:07:12,103 INFO L272 AbstractInterpreter]: Visited 120 different actions 948 times. Merged at 8 different actions 65 times. Widened at 1 different actions 3 times. Found 14 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:07:12,109 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:07:14,128 INFO L232 lantSequenceWeakener]: Weakened 362 states. On average, predicates are now at 77.91% of their original sizes. [2018-09-15 12:07:14,128 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:07:14,395 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:07:14,395 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:07:14,395 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:07:14,396 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:07:14,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:07:14,396 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:07:14,397 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:07:14,397 INFO L87 Difference]: Start difference. First operand 1999 states and 2367 transitions. Second operand 10 states. [2018-09-15 12:07:21,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 12:07:21,735 INFO L93 Difference]: Finished difference Result 2831 states and 3636 transitions. [2018-09-15 12:07:21,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-15 12:07:21,740 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 364 [2018-09-15 12:07:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 12:07:21,750 INFO L225 Difference]: With dead ends: 2831 [2018-09-15 12:07:21,750 INFO L226 Difference]: Without dead ends: 2194 [2018-09-15 12:07:21,753 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 371 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-15 12:07:21,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2194 states. [2018-09-15 12:07:21,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2194 to 2184. [2018-09-15 12:07:21,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2184 states. [2018-09-15 12:07:21,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2184 states to 2184 states and 2585 transitions. [2018-09-15 12:07:21,822 INFO L78 Accepts]: Start accepts. Automaton has 2184 states and 2585 transitions. Word has length 364 [2018-09-15 12:07:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 12:07:21,823 INFO L480 AbstractCegarLoop]: Abstraction has 2184 states and 2585 transitions. [2018-09-15 12:07:21,824 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-15 12:07:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2184 states and 2585 transitions. [2018-09-15 12:07:21,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-09-15 12:07:21,831 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 12:07:21,832 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 12:07:21,832 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 12:07:21,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1782969906, now seen corresponding path program 1 times [2018-09-15 12:07:21,833 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 12:07:21,833 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 386 with the following transitions: [2018-09-15 12:07:21,833 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [389], [391], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [626], [627], [631], [635], [639], [643], [647], [651], [654], [655], [658], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-09-15 12:07:21,836 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 12:07:21,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 12:07:33,359 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 12:07:51,086 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 12:07:51,086 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-15 12:07:51,092 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 12:07:53,133 INFO L232 lantSequenceWeakener]: Weakened 383 states. On average, predicates are now at 77.87% of their original sizes. [2018-09-15 12:07:53,133 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 12:07:53,435 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 12:07:53,436 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 12:07:53,436 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-15 12:07:53,436 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 12:07:53,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-15 12:07:53,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-15 12:07:53,437 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-15 12:07:53,437 INFO L87 Difference]: Start difference. First operand 2184 states and 2585 transitions. Second operand 10 states. Received shutdown request... [2018-09-15 12:07:56,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-15 12:07:56,637 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-15 12:07:56,644 WARN L206 ceAbstractionStarter]: Timeout [2018-09-15 12:07:56,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.09 12:07:56 BoogieIcfgContainer [2018-09-15 12:07:56,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-15 12:07:56,645 INFO L168 Benchmark]: Toolchain (without parser) took 247919.22 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: -529.6 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-15 12:07:56,647 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 12:07:56,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 783.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-15 12:07:56,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.83 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-15 12:07:56,650 INFO L168 Benchmark]: Boogie Preprocessor took 290.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -890.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-15 12:07:56,651 INFO L168 Benchmark]: RCFGBuilder took 4155.18 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.5 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. [2018-09-15 12:07:56,651 INFO L168 Benchmark]: TraceAbstraction took 242538.96 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 176.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-15 12:07:56,659 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 783.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 144.83 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 290.13 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 780.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -890.6 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4155.18 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.5 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242538.96 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 176.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was constructing difference of abstraction (2184states) and FLOYD_HOARE automaton (currently 13 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (360 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 242.4s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 56.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1650 SDtfs, 8207 SDslu, 1929 SDs, 0 SdLazy, 15507 SolverSat, 2188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 49.2s Time, PredicateUnifierStatistics: 16 DeclaredPredicates, 2085 GetRequests, 1803 SyntacticMatches, 147 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1473 ImplicationChecksByTransitivity, 8.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2184occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 159.9s AbstIntTime, 8 AbstIntIterations, 8 AbstIntStrong, 0.9954498470067946 AbsIntWeakeningRatio, 0.10004952947003468 AbsIntAvgWeakeningVarsNumRemoved, 639.64289252105 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 236 StatesRemovedByMinimization, 7 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/Problem14_label01_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-15_12-07-56-683.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label01_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-15_12-07-56-683.csv Completed graceful shutdown