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/Problem10_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 03:20:37,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 03:20:37,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 03:20:37,046 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 03:20:37,047 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 03:20:37,048 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 03:20:37,049 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 03:20:37,051 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 03:20:37,052 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 03:20:37,053 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 03:20:37,054 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 03:20:37,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 03:20:37,055 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 03:20:37,056 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 03:20:37,058 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 03:20:37,059 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 03:20:37,060 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 03:20:37,061 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 03:20:37,064 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 03:20:37,065 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 03:20:37,066 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 03:20:37,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 03:20:37,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 03:20:37,071 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 03:20:37,071 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 03:20:37,072 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 03:20:37,073 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 03:20:37,074 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 03:20:37,075 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 03:20:37,076 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 03:20:37,076 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 03:20:37,077 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 03:20:37,077 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 03:20:37,078 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 03:20:37,079 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 03:20:37,079 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 03:20:37,080 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 03:20:37,095 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 03:20:37,095 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 03:20:37,096 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 03:20:37,096 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 03:20:37,096 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 03:20:37,097 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 03:20:37,097 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 03:20:37,097 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 03:20:37,097 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 03:20:37,097 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 03:20:37,098 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 03:20:37,098 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 03:20:37,099 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 03:20:37,099 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 03:20:37,099 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 03:20:37,099 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 03:20:37,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 03:20:37,100 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 03:20:37,100 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 03:20:37,100 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 03:20:37,101 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 03:20:37,101 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 03:20:37,101 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 03:20:37,101 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 03:20:37,102 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:20:37,102 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 03:20:37,102 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 03:20:37,102 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 03:20:37,103 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 03:20:37,103 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 03:20:37,103 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 03:20:37,103 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 03:20:37,104 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 03:20:37,104 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 03:20:37,173 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 03:20:37,189 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 03:20:37,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 03:20:37,194 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 03:20:37,194 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 03:20:37,195 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label00_true-unreach-call.c [2018-09-19 03:20:37,566 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8573dfb74/c173d5f44ee544e680016c281dda841d/FLAG0192f8aa9 [2018-09-19 03:20:37,862 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 03:20:37,863 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label00_true-unreach-call.c [2018-09-19 03:20:37,877 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8573dfb74/c173d5f44ee544e680016c281dda841d/FLAG0192f8aa9 [2018-09-19 03:20:37,892 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8573dfb74/c173d5f44ee544e680016c281dda841d [2018-09-19 03:20:37,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 03:20:37,907 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 03:20:37,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 03:20:37,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 03:20:37,916 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 03:20:37,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:20:37" (1/1) ... [2018-09-19 03:20:37,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f1297b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:37, skipping insertion in model container [2018-09-19 03:20:37,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:20:37" (1/1) ... [2018-09-19 03:20:37,932 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 03:20:38,401 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:20:38,429 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 03:20:38,586 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 03:20:38,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38 WrapperNode [2018-09-19 03:20:38,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 03:20:38,636 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 03:20:38,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 03:20:38,637 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 03:20:38,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:38,678 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:38,759 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 03:20:38,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 03:20:38,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 03:20:38,760 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 03:20:38,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:38,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:38,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:38,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:39,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:39,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:39,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... [2018-09-19 03:20:39,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 03:20:39,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 03:20:39,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 03:20:39,058 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 03:20:39,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 03:20:39,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 03:20:39,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 03:20:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 03:20:39,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 03:20:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 03:20:39,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 03:20:39,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 03:20:39,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 03:20:42,508 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 03:20:42,508 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:20:42 BoogieIcfgContainer [2018-09-19 03:20:42,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 03:20:42,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 03:20:42,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 03:20:42,513 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 03:20:42,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:20:37" (1/3) ... [2018-09-19 03:20:42,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71faa919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:20:42, skipping insertion in model container [2018-09-19 03:20:42,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:20:38" (2/3) ... [2018-09-19 03:20:42,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71faa919 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:20:42, skipping insertion in model container [2018-09-19 03:20:42,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:20:42" (3/3) ... [2018-09-19 03:20:42,517 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label00_true-unreach-call.c [2018-09-19 03:20:42,527 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 03:20:42,540 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 03:20:42,603 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 03:20:42,604 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 03:20:42,604 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 03:20:42,605 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 03:20:42,605 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 03:20:42,605 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 03:20:42,605 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 03:20:42,605 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 03:20:42,606 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 03:20:42,632 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 03:20:42,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-19 03:20:42,642 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:20:42,644 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] [2018-09-19 03:20:42,645 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:20:42,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1416877404, now seen corresponding path program 1 times [2018-09-19 03:20:42,652 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:20:42,653 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 55 with the following transitions: [2018-09-19 03:20:42,655 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], [333], [335], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 03:20:42,718 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:20:42,718 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:20:44,232 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:20:44,233 INFO L272 AbstractInterpreter]: Visited 53 different actions 53 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 03:20:44,250 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:20:44,928 INFO L232 lantSequenceWeakener]: Weakened 52 states. On average, predicates are now at 75.76% of their original sizes. [2018-09-19 03:20:44,929 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:20:45,274 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:20:45,276 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:20:45,276 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 03:20:45,277 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:20:45,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 03:20:45,293 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 03:20:45,294 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:20:45,296 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 03:20:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:20:50,551 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 03:20:50,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 03:20:50,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 54 [2018-09-19 03:20:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:20:50,572 INFO L225 Difference]: With dead ends: 576 [2018-09-19 03:20:50,572 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 03:20:50,579 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 03:20:50,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 03:20:50,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 03:20:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 03:20:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 03:20:50,650 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 54 [2018-09-19 03:20:50,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:20:50,651 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 03:20:50,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 03:20:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 03:20:50,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-19 03:20:50,657 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:20:50,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:20:50,658 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:20:50,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1322178669, now seen corresponding path program 1 times [2018-09-19 03:20:50,659 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:20:50,659 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 126 with the following transitions: [2018-09-19 03:20:50,659 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:20:50,666 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:20:50,666 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:20:52,047 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:20:54,970 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:20:54,970 INFO L272 AbstractInterpreter]: Visited 78 different actions 221 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:20:54,981 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:20:55,931 INFO L232 lantSequenceWeakener]: Weakened 123 states. On average, predicates are now at 74.09% of their original sizes. [2018-09-19 03:20:55,932 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:20:56,581 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:20:56,581 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:20:56,581 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:20:56,582 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:20:56,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:20:56,584 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:20:56,584 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:20:56,584 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 03:21:04,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:21:04,887 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 03:21:04,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 03:21:04,890 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 125 [2018-09-19 03:21:04,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:21:04,896 INFO L225 Difference]: With dead ends: 717 [2018-09-19 03:21:04,896 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 03:21:04,900 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 131 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 03:21:04,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 03:21:04,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 03:21:04,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 03:21:04,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 659 transitions. [2018-09-19 03:21:04,954 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 659 transitions. Word has length 125 [2018-09-19 03:21:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:21:04,955 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 659 transitions. [2018-09-19 03:21:04,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:21:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 659 transitions. [2018-09-19 03:21:04,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-09-19 03:21:04,959 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:21:04,960 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:21:04,960 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:21:04,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1136942040, now seen corresponding path program 1 times [2018-09-19 03:21:04,960 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:21:04,961 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 135 with the following transitions: [2018-09-19 03:21:04,961 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:21:04,965 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:21:04,965 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:21:09,288 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:21:11,261 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:21:11,261 INFO L272 AbstractInterpreter]: Visited 87 different actions 248 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:21:11,270 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:21:12,333 INFO L232 lantSequenceWeakener]: Weakened 132 states. On average, predicates are now at 73.99% of their original sizes. [2018-09-19 03:21:12,334 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:21:12,988 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:21:12,988 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:21:12,989 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:21:12,989 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:21:12,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:21:12,990 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:21:12,990 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:21:12,990 INFO L87 Difference]: Start difference. First operand 505 states and 659 transitions. Second operand 13 states. [2018-09-19 03:21:23,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:21:23,836 INFO L93 Difference]: Finished difference Result 1333 states and 2076 transitions. [2018-09-19 03:21:23,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 03:21:23,840 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 134 [2018-09-19 03:21:23,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:21:23,846 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 03:21:23,846 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 03:21:23,849 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 03:21:23,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 03:21:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 03:21:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 03:21:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 943 transitions. [2018-09-19 03:21:23,897 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 943 transitions. Word has length 134 [2018-09-19 03:21:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:21:23,898 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 943 transitions. [2018-09-19 03:21:23,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:21:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 943 transitions. [2018-09-19 03:21:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-09-19 03:21:23,903 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:21:23,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:21:23,904 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:21:23,904 INFO L82 PathProgramCache]: Analyzing trace with hash 291298896, now seen corresponding path program 1 times [2018-09-19 03:21:23,904 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:21:23,905 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 171 with the following transitions: [2018-09-19 03:21:23,905 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [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], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:21:23,910 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:21:23,910 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:21:26,678 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:21:32,515 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:21:32,516 INFO L272 AbstractInterpreter]: Visited 123 different actions 356 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:21:32,525 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:21:33,616 INFO L232 lantSequenceWeakener]: Weakened 168 states. On average, predicates are now at 73.72% of their original sizes. [2018-09-19 03:21:33,616 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:21:34,102 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:21:34,102 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:21:34,103 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:21:34,103 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:21:34,103 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:21:34,103 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:21:34,104 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:21:34,104 INFO L87 Difference]: Start difference. First operand 762 states and 943 transitions. Second operand 12 states. [2018-09-19 03:21:43,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:21:43,495 INFO L93 Difference]: Finished difference Result 1677 states and 2200 transitions. [2018-09-19 03:21:43,496 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:21:43,496 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 170 [2018-09-19 03:21:43,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:21:43,503 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 03:21:43,503 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 03:21:43,506 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 178 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 03:21:43,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 03:21:43,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 03:21:43,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 03:21:43,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1277 transitions. [2018-09-19 03:21:43,547 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1277 transitions. Word has length 170 [2018-09-19 03:21:43,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:21:43,548 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1277 transitions. [2018-09-19 03:21:43,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:21:43,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1277 transitions. [2018-09-19 03:21:43,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-09-19 03:21:43,552 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:21:43,552 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 03:21:43,553 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:21:43,553 INFO L82 PathProgramCache]: Analyzing trace with hash 991767315, now seen corresponding path program 1 times [2018-09-19 03:21:43,553 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:21:43,553 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-09-19 03:21:43,554 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [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], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [754], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:21:43,559 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:21:43,560 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:21:53,266 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:21:53,267 INFO L272 AbstractInterpreter]: Visited 142 different actions 413 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:21:53,275 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:21:54,431 INFO L232 lantSequenceWeakener]: Weakened 187 states. On average, predicates are now at 73.62% of their original sizes. [2018-09-19 03:21:54,431 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:21:54,824 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:21:54,824 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:21:54,824 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 03:21:54,824 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:21:54,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 03:21:54,825 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 03:21:54,825 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 03:21:54,825 INFO L87 Difference]: Start difference. First operand 1056 states and 1277 transitions. Second operand 12 states. [2018-09-19 03:22:01,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:01,986 INFO L93 Difference]: Finished difference Result 2268 states and 2879 transitions. [2018-09-19 03:22:01,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 03:22:01,993 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 189 [2018-09-19 03:22:01,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:02,000 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 03:22:02,000 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 03:22:02,003 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 198 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 03:22:02,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 03:22:02,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 03:22:02,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 03:22:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1605 transitions. [2018-09-19 03:22:02,067 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1605 transitions. Word has length 189 [2018-09-19 03:22:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:02,068 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1605 transitions. [2018-09-19 03:22:02,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 03:22:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1605 transitions. [2018-09-19 03:22:02,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2018-09-19 03:22:02,072 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:02,072 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, 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] [2018-09-19 03:22:02,073 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:02,073 INFO L82 PathProgramCache]: Analyzing trace with hash -400280177, now seen corresponding path program 1 times [2018-09-19 03:22:02,073 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:02,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 202 with the following transitions: [2018-09-19 03:22:02,074 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [518], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:02,077 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:02,077 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:03,516 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:22:08,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:22:08,275 INFO L272 AbstractInterpreter]: Visited 84 different actions 323 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:22:08,284 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:22:09,432 INFO L232 lantSequenceWeakener]: Weakened 199 states. On average, predicates are now at 73.61% of their original sizes. [2018-09-19 03:22:09,433 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:22:09,695 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:22:09,696 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:22:09,696 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:22:09,696 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:22:09,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:22:09,697 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:22:09,697 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:22:09,697 INFO L87 Difference]: Start difference. First operand 1352 states and 1605 transitions. Second operand 10 states. [2018-09-19 03:22:14,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:14,407 INFO L93 Difference]: Finished difference Result 2719 states and 3368 transitions. [2018-09-19 03:22:14,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:22:14,410 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 201 [2018-09-19 03:22:14,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:14,417 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 03:22:14,420 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 03:22:14,424 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 208 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:22:14,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 03:22:14,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 03:22:14,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 03:22:14,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1772 transitions. [2018-09-19 03:22:14,481 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1772 transitions. Word has length 201 [2018-09-19 03:22:14,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:14,482 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1772 transitions. [2018-09-19 03:22:14,482 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:22:14,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1772 transitions. [2018-09-19 03:22:14,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-19 03:22:14,487 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:14,487 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, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:22:14,487 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:14,487 INFO L82 PathProgramCache]: Analyzing trace with hash 738035632, now seen corresponding path program 1 times [2018-09-19 03:22:14,487 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:14,488 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-09-19 03:22:14,488 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [534], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:14,491 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:14,492 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:17,745 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:22:21,527 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:22:21,527 INFO L272 AbstractInterpreter]: Visited 88 different actions 341 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 03:22:21,535 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:22:22,739 INFO L232 lantSequenceWeakener]: Weakened 210 states. On average, predicates are now at 73.57% of their original sizes. [2018-09-19 03:22:22,739 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:22:23,236 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:22:23,237 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:22:23,237 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:22:23,237 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:22:23,237 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:22:23,238 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:22:23,238 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:22:23,238 INFO L87 Difference]: Start difference. First operand 1503 states and 1772 transitions. Second operand 13 states. [2018-09-19 03:22:29,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:29,722 INFO L93 Difference]: Finished difference Result 3686 states and 4637 transitions. [2018-09-19 03:22:29,725 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:22:29,725 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 212 [2018-09-19 03:22:29,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:29,737 INFO L225 Difference]: With dead ends: 3686 [2018-09-19 03:22:29,737 INFO L226 Difference]: Without dead ends: 2337 [2018-09-19 03:22:29,741 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:22:29,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2337 states. [2018-09-19 03:22:29,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2337 to 2189. [2018-09-19 03:22:29,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2189 states. [2018-09-19 03:22:29,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2189 states to 2189 states and 2615 transitions. [2018-09-19 03:22:29,830 INFO L78 Accepts]: Start accepts. Automaton has 2189 states and 2615 transitions. Word has length 212 [2018-09-19 03:22:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:29,830 INFO L480 AbstractCegarLoop]: Abstraction has 2189 states and 2615 transitions. [2018-09-19 03:22:29,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:22:29,830 INFO L276 IsEmpty]: Start isEmpty. Operand 2189 states and 2615 transitions. [2018-09-19 03:22:29,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2018-09-19 03:22:29,836 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:29,836 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:22:29,836 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:29,837 INFO L82 PathProgramCache]: Analyzing trace with hash -319116676, now seen corresponding path program 1 times [2018-09-19 03:22:29,837 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:29,837 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 223 with the following transitions: [2018-09-19 03:22:29,837 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [547], [551], [555], [559], [563], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:29,840 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:29,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:33,399 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:22:46,909 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:22:46,910 INFO L272 AbstractInterpreter]: Visited 96 different actions 555 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:22:46,919 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:22:48,333 INFO L232 lantSequenceWeakener]: Weakened 220 states. On average, predicates are now at 73.53% of their original sizes. [2018-09-19 03:22:48,334 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:22:48,828 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:22:48,828 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:22:48,828 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:22:48,829 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:22:48,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:22:48,830 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:22:48,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:22:48,830 INFO L87 Difference]: Start difference. First operand 2189 states and 2615 transitions. Second operand 13 states. [2018-09-19 03:22:57,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:22:57,822 INFO L93 Difference]: Finished difference Result 5360 states and 6747 transitions. [2018-09-19 03:22:57,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:22:57,823 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 222 [2018-09-19 03:22:57,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:22:57,842 INFO L225 Difference]: With dead ends: 5360 [2018-09-19 03:22:57,843 INFO L226 Difference]: Without dead ends: 3325 [2018-09-19 03:22:57,849 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:22:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3325 states. [2018-09-19 03:22:57,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3325 to 3019. [2018-09-19 03:22:57,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3019 states. [2018-09-19 03:22:57,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3019 states to 3019 states and 3715 transitions. [2018-09-19 03:22:57,970 INFO L78 Accepts]: Start accepts. Automaton has 3019 states and 3715 transitions. Word has length 222 [2018-09-19 03:22:57,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:22:57,970 INFO L480 AbstractCegarLoop]: Abstraction has 3019 states and 3715 transitions. [2018-09-19 03:22:57,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:22:57,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3019 states and 3715 transitions. [2018-09-19 03:22:57,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-09-19 03:22:57,977 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:22:57,977 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, 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] [2018-09-19 03:22:57,978 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:22:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash -107945776, now seen corresponding path program 1 times [2018-09-19 03:22:57,978 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:22:57,979 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 239 with the following transitions: [2018-09-19 03:22:57,979 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [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], [659], [663], [666], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:22:57,982 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:22:57,982 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:22:59,476 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:23:08,870 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:23:08,870 INFO L272 AbstractInterpreter]: Visited 121 different actions 471 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:23:08,878 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:23:10,162 INFO L232 lantSequenceWeakener]: Weakened 236 states. On average, predicates are now at 73.47% of their original sizes. [2018-09-19 03:23:10,162 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:23:10,642 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:23:10,642 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:23:10,642 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:23:10,643 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:23:10,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:23:10,643 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:23:10,643 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:23:10,644 INFO L87 Difference]: Start difference. First operand 3019 states and 3715 transitions. Second operand 13 states. [2018-09-19 03:23:18,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:23:18,085 INFO L93 Difference]: Finished difference Result 6300 states and 8063 transitions. [2018-09-19 03:23:18,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:23:18,092 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 238 [2018-09-19 03:23:18,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:23:18,105 INFO L225 Difference]: With dead ends: 6300 [2018-09-19 03:23:18,106 INFO L226 Difference]: Without dead ends: 3435 [2018-09-19 03:23:18,113 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:23:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3435 states. [2018-09-19 03:23:18,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3435 to 3305. [2018-09-19 03:23:18,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3305 states. [2018-09-19 03:23:18,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 4062 transitions. [2018-09-19 03:23:18,215 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 4062 transitions. Word has length 238 [2018-09-19 03:23:18,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:23:18,215 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 4062 transitions. [2018-09-19 03:23:18,216 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:23:18,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 4062 transitions. [2018-09-19 03:23:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-19 03:23:18,222 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:23:18,222 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, 2, 2, 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] [2018-09-19 03:23:18,223 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:23:18,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1963915651, now seen corresponding path program 1 times [2018-09-19 03:23:18,223 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:23:18,223 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 244 with the following transitions: [2018-09-19 03:23:18,224 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [506], [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], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:23:18,226 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:23:18,227 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:23:20,827 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:23:32,216 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:23:32,217 INFO L272 AbstractInterpreter]: Visited 124 different actions 603 times. Merged at 7 different actions 27 times. Never widened. Found 5 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:23:32,224 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:23:33,676 INFO L232 lantSequenceWeakener]: Weakened 241 states. On average, predicates are now at 73.46% of their original sizes. [2018-09-19 03:23:33,676 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:23:34,564 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:23:34,564 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:23:34,564 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 03:23:34,565 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:23:34,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 03:23:34,566 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 03:23:34,566 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 03:23:34,566 INFO L87 Difference]: Start difference. First operand 3305 states and 4062 transitions. Second operand 10 states. [2018-09-19 03:23:44,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:23:44,688 INFO L93 Difference]: Finished difference Result 6634 states and 8307 transitions. [2018-09-19 03:23:44,689 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 03:23:44,689 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 243 [2018-09-19 03:23:44,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:23:44,703 INFO L225 Difference]: With dead ends: 6634 [2018-09-19 03:23:44,704 INFO L226 Difference]: Without dead ends: 3483 [2018-09-19 03:23:44,711 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 250 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 03:23:44,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3483 states. [2018-09-19 03:23:44,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3483 to 3457. [2018-09-19 03:23:44,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3457 states. [2018-09-19 03:23:44,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3457 states to 3457 states and 4260 transitions. [2018-09-19 03:23:44,826 INFO L78 Accepts]: Start accepts. Automaton has 3457 states and 4260 transitions. Word has length 243 [2018-09-19 03:23:44,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:23:44,826 INFO L480 AbstractCegarLoop]: Abstraction has 3457 states and 4260 transitions. [2018-09-19 03:23:44,827 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 03:23:44,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3457 states and 4260 transitions. [2018-09-19 03:23:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-09-19 03:23:44,833 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:23:44,834 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:23:44,834 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:23:44,834 INFO L82 PathProgramCache]: Analyzing trace with hash 280862064, now seen corresponding path program 1 times [2018-09-19 03:23:44,835 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:23:44,835 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 245 with the following transitions: [2018-09-19 03:23:44,835 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [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], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:23:44,838 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:23:44,838 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:23:48,920 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:24:00,783 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:24:00,783 INFO L272 AbstractInterpreter]: Visited 118 different actions 687 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:24:00,792 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:24:02,431 INFO L232 lantSequenceWeakener]: Weakened 242 states. On average, predicates are now at 73.46% of their original sizes. [2018-09-19 03:24:02,432 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:24:03,132 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:24:03,132 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:24:03,132 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 03:24:03,132 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:24:03,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 03:24:03,133 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 03:24:03,133 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 03:24:03,133 INFO L87 Difference]: Start difference. First operand 3457 states and 4260 transitions. Second operand 13 states. [2018-09-19 03:24:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:24:11,729 INFO L93 Difference]: Finished difference Result 8601 states and 11011 transitions. [2018-09-19 03:24:11,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:24:11,730 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 244 [2018-09-19 03:24:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:24:11,748 INFO L225 Difference]: With dead ends: 8601 [2018-09-19 03:24:11,749 INFO L226 Difference]: Without dead ends: 5298 [2018-09-19 03:24:11,756 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 256 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=148, Invalid=502, Unknown=0, NotChecked=0, Total=650 [2018-09-19 03:24:11,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5298 states. [2018-09-19 03:24:11,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5298 to 4845. [2018-09-19 03:24:11,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2018-09-19 03:24:11,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 6065 transitions. [2018-09-19 03:24:11,892 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 6065 transitions. Word has length 244 [2018-09-19 03:24:11,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:24:11,893 INFO L480 AbstractCegarLoop]: Abstraction has 4845 states and 6065 transitions. [2018-09-19 03:24:11,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 03:24:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 6065 transitions. [2018-09-19 03:24:11,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2018-09-19 03:24:11,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:24:11,901 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:24:11,901 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:24:11,901 INFO L82 PathProgramCache]: Analyzing trace with hash -899871008, now seen corresponding path program 1 times [2018-09-19 03:24:11,901 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:24:11,902 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 253 with the following transitions: [2018-09-19 03:24:11,902 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [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], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:24:11,905 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:24:11,905 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:24:14,409 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:24:29,277 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:24:29,277 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:24:29,285 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:24:30,609 INFO L232 lantSequenceWeakener]: Weakened 250 states. On average, predicates are now at 73.43% of their original sizes. [2018-09-19 03:24:30,609 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 03:24:30,936 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 03:24:30,936 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 03:24:30,936 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 03:24:30,937 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 03:24:30,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 03:24:30,937 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 03:24:30,938 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 03:24:30,938 INFO L87 Difference]: Start difference. First operand 4845 states and 6065 transitions. Second operand 11 states. [2018-09-19 03:24:35,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 03:24:35,614 INFO L93 Difference]: Finished difference Result 9755 states and 12399 transitions. [2018-09-19 03:24:35,617 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 03:24:35,617 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 252 [2018-09-19 03:24:35,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 03:24:35,634 INFO L225 Difference]: With dead ends: 9755 [2018-09-19 03:24:35,635 INFO L226 Difference]: Without dead ends: 5064 [2018-09-19 03:24:35,644 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 260 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 03:24:35,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5064 states. [2018-09-19 03:24:35,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5064 to 5004. [2018-09-19 03:24:35,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5004 states. [2018-09-19 03:24:35,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5004 states to 5004 states and 6279 transitions. [2018-09-19 03:24:35,782 INFO L78 Accepts]: Start accepts. Automaton has 5004 states and 6279 transitions. Word has length 252 [2018-09-19 03:24:35,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 03:24:35,783 INFO L480 AbstractCegarLoop]: Abstraction has 5004 states and 6279 transitions. [2018-09-19 03:24:35,783 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 03:24:35,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5004 states and 6279 transitions. [2018-09-19 03:24:35,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2018-09-19 03:24:35,792 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 03:24:35,793 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-19 03:24:35,793 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 03:24:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1954788313, now seen corresponding path program 1 times [2018-09-19 03:24:35,793 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 03:24:35,794 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 274 with the following transitions: [2018-09-19 03:24:35,794 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [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], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 03:24:35,797 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 03:24:35,797 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 03:24:38,429 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 03:24:53,238 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 03:24:53,239 INFO L272 AbstractInterpreter]: Visited 124 different actions 723 times. Merged at 7 different actions 34 times. Widened at 1 different actions 1 times. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 03:24:53,245 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 03:24:54,706 INFO L232 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 73.38% of their original sizes. [2018-09-19 03:24:54,707 INFO L412 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-09-19 03:24:54,758 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 03:24:54,762 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 03:24:54,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 03:24:54 BoogieIcfgContainer [2018-09-19 03:24:54,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 03:24:54,764 INFO L168 Benchmark]: Toolchain (without parser) took 256859.52 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 2.4 GB in the end (delta: -944.2 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-19 03:24:54,766 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 03:24:54,766 INFO L168 Benchmark]: CACSL2BoogieTranslator took 727.20 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 03:24:54,767 INFO L168 Benchmark]: Boogie Procedure Inliner took 123.42 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 03:24:54,768 INFO L168 Benchmark]: Boogie Preprocessor took 297.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 783.8 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -878.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2018-09-19 03:24:54,769 INFO L168 Benchmark]: RCFGBuilder took 3451.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 108.9 MB). Peak memory consumption was 108.9 MB. Max. memory is 7.1 GB. [2018-09-19 03:24:54,770 INFO L168 Benchmark]: TraceAbstraction took 252253.44 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -227.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-19 03:24:54,775 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 727.20 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 123.42 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 297.07 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 783.8 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -878.8 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3451.14 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 108.9 MB). Peak memory consumption was 108.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 252253.44 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -227.1 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 145]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 145). Cancelled while BasicCegarLoop was analyzing trace of length 274 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 252.1s OverallTime, 13 OverallIterations, 3 TraceHistogramMax, 92.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2362 SDtfs, 12654 SDslu, 4160 SDs, 0 SdLazy, 24172 SolverSat, 2847 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 79.8s Time, PredicateUnifierStatistics: 24 DeclaredPredicates, 2390 GetRequests, 2160 SyntacticMatches, 0 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 944 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5004occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 136.6s AbstIntTime, 13 AbstIntIterations, 13 AbstIntStrong, 0.9945729858055542 AbsIntWeakeningRatio, 0.11871069182389937 AbsIntAvgWeakeningVarsNumRemoved, 893.2649371069182 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 12 MinimizatonAttempts, 1388 StatesRemovedByMinimization, 12 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/Problem10_label00_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_03-24-54-789.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label00_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_03-24-54-789.csv Completed graceful shutdown