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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label35_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:02:35,925 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:02:35,927 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:02:35,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:02:35,947 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:02:35,948 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:02:35,949 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:02:35,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:02:35,955 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:02:35,956 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:02:35,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:02:35,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:02:35,960 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:02:35,961 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:02:35,969 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:02:35,970 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:02:35,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:02:35,976 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:02:35,980 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:02:35,982 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:02:35,983 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:02:35,986 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:02:35,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:02:35,992 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:02:35,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:02:35,994 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:02:35,995 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:02:35,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:02:35,998 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:02:35,999 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:02:36,000 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:02:36,001 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 10:02:36,001 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 10:02:36,002 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 10:02:36,004 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 10:02:36,005 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 10:02:36,007 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-19 10:02:36,027 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:02:36,028 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:02:36,029 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:02:36,029 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:02:36,029 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:02:36,029 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:02:36,029 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:02:36,030 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:02:36,030 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:02:36,030 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:02:36,030 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:02:36,031 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:02:36,031 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:02:36,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:02:36,032 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:02:36,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:02:36,032 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:02:36,032 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:02:36,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:02:36,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:02:36,033 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:02:36,033 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:02:36,033 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:02:36,034 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:02:36,034 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:02:36,034 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:02:36,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:02:36,035 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:02:36,035 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:02:36,035 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:02:36,035 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:02:36,036 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:02:36,036 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:02:36,036 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:02:36,036 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:02:36,096 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:02:36,112 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:02:36,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:02:36,122 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:02:36,123 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:02:36,124 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label35_true-unreach-call.c [2018-09-19 10:02:36,480 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb446e7f5/01f4e3785dfc4872b7ce6e425fa71aca/FLAG2203e2a4e [2018-09-19 10:02:36,779 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:02:36,780 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label35_true-unreach-call.c [2018-09-19 10:02:36,794 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb446e7f5/01f4e3785dfc4872b7ce6e425fa71aca/FLAG2203e2a4e [2018-09-19 10:02:36,810 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb446e7f5/01f4e3785dfc4872b7ce6e425fa71aca [2018-09-19 10:02:36,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:02:36,825 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:02:36,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:02:36,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:02:36,833 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:02:36,834 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:02:36" (1/1) ... [2018-09-19 10:02:36,837 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 10:02:36, skipping insertion in model container [2018-09-19 10:02:36,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:02:36" (1/1) ... [2018-09-19 10:02:36,849 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:02:37,385 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:02:37,407 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:02:37,512 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:02:37,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37 WrapperNode [2018-09-19 10:02:37,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:02:37,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:02:37,562 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:02:37,562 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:02:37,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:02:37,706 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:02:37,706 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:02:37,706 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:02:37,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,953 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (1/1) ... [2018-09-19 10:02:37,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:02:37,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:02:37,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:02:37,970 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:02:37,971 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (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 10:02:38,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:02:38,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:02:38,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:02:38,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:02:38,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:02:38,047 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:02:41,586 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:02:41,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:02:41 BoogieIcfgContainer [2018-09-19 10:02:41,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:02:41,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:02:41,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:02:41,592 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:02:41,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:02:36" (1/3) ... [2018-09-19 10:02:41,593 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 10:02:41, skipping insertion in model container [2018-09-19 10:02:41,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:02:37" (2/3) ... [2018-09-19 10:02:41,594 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 10:02:41, skipping insertion in model container [2018-09-19 10:02:41,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:02:41" (3/3) ... [2018-09-19 10:02:41,596 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label35_true-unreach-call.c [2018-09-19 10:02:41,606 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:02:41,620 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:02:41,678 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:02:41,679 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:02:41,680 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:02:41,680 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:02:41,680 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:02:41,680 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:02:41,680 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:02:41,681 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:02:41,681 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:02:41,707 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-09-19 10:02:41,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-19 10:02:41,717 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:02:41,718 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:02:41,719 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:02:41,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1718908404, now seen corresponding path program 1 times [2018-09-19 10:02:41,730 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:02:41,732 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-09-19 10:02:41,734 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [796], [800], [806], [810], [817], [818], [819], [821] [2018-09-19 10:02:41,797 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:02:41,798 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:02:43,219 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:02:43,222 INFO L272 AbstractInterpreter]: Visited 57 different actions 57 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 10:02:43,237 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:02:43,932 INFO L232 lantSequenceWeakener]: Weakened 56 states. On average, predicates are now at 75.87% of their original sizes. [2018-09-19 10:02:43,932 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:02:44,274 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:02:44,275 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:02:44,276 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:02:44,276 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:02:44,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:02:44,292 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:02:44,293 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:02:44,296 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 6 states. [2018-09-19 10:02:47,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:02:47,585 INFO L93 Difference]: Finished difference Result 576 states and 995 transitions. [2018-09-19 10:02:47,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:02:47,586 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 58 [2018-09-19 10:02:47,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:02:47,603 INFO L225 Difference]: With dead ends: 576 [2018-09-19 10:02:47,603 INFO L226 Difference]: Without dead ends: 358 [2018-09-19 10:02:47,609 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 57 GetRequests, 53 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 10:02:47,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2018-09-19 10:02:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 356. [2018-09-19 10:02:47,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-09-19 10:02:47,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 497 transitions. [2018-09-19 10:02:47,690 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 497 transitions. Word has length 58 [2018-09-19 10:02:47,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:02:47,691 INFO L480 AbstractCegarLoop]: Abstraction has 356 states and 497 transitions. [2018-09-19 10:02:47,691 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:02:47,691 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 497 transitions. [2018-09-19 10:02:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-09-19 10:02:47,703 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:02:47,703 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 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 10:02:47,703 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:02:47,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1432261539, now seen corresponding path program 1 times [2018-09-19 10:02:47,704 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:02:47,704 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-09-19 10:02:47,705 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:02:47,720 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:02:47,721 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:02:49,114 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:02:52,176 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:02:52,176 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 10:02:52,183 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:02:53,168 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 74.19% of their original sizes. [2018-09-19 10:02:53,169 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:02:53,607 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:02:53,608 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:02:53,608 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:02:53,608 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:02:53,609 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:02:53,609 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:02:53,610 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:02:53,610 INFO L87 Difference]: Start difference. First operand 356 states and 497 transitions. Second operand 10 states. [2018-09-19 10:03:01,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:03:01,915 INFO L93 Difference]: Finished difference Result 717 states and 1132 transitions. [2018-09-19 10:03:01,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 10:03:01,920 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 129 [2018-09-19 10:03:01,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:03:01,926 INFO L225 Difference]: With dead ends: 717 [2018-09-19 10:03:01,927 INFO L226 Difference]: Without dead ends: 511 [2018-09-19 10:03:01,929 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2018-09-19 10:03:01,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2018-09-19 10:03:01,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 505. [2018-09-19 10:03:01,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 505 states. [2018-09-19 10:03:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 669 transitions. [2018-09-19 10:03:01,979 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 669 transitions. Word has length 129 [2018-09-19 10:03:01,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:03:01,980 INFO L480 AbstractCegarLoop]: Abstraction has 505 states and 669 transitions. [2018-09-19 10:03:01,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:03:01,981 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 669 transitions. [2018-09-19 10:03:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-09-19 10:03:01,985 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:03:01,985 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:01,985 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:03:01,986 INFO L82 PathProgramCache]: Analyzing trace with hash -352320280, now seen corresponding path program 1 times [2018-09-19 10:03:01,986 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:03:01,986 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2018-09-19 10:03:01,987 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:03:01,998 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:03:01,998 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:03:06,366 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:03:08,095 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:03:08,095 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 10:03:08,101 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:03:09,056 INFO L232 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 74.09% of their original sizes. [2018-09-19 10:03:09,056 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:03:09,853 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:03:09,854 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:03:09,854 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:03:09,854 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:03:09,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:03:09,855 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:03:09,855 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:03:09,855 INFO L87 Difference]: Start difference. First operand 505 states and 669 transitions. Second operand 13 states. [2018-09-19 10:03:21,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:03:21,456 INFO L93 Difference]: Finished difference Result 1333 states and 2096 transitions. [2018-09-19 10:03:21,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-19 10:03:21,458 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 138 [2018-09-19 10:03:21,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:03:21,465 INFO L225 Difference]: With dead ends: 1333 [2018-09-19 10:03:21,465 INFO L226 Difference]: Without dead ends: 978 [2018-09-19 10:03:21,468 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 152 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=164, Invalid=592, Unknown=0, NotChecked=0, Total=756 [2018-09-19 10:03:21,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2018-09-19 10:03:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 762. [2018-09-19 10:03:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-09-19 10:03:21,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 953 transitions. [2018-09-19 10:03:21,508 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 953 transitions. Word has length 138 [2018-09-19 10:03:21,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:03:21,509 INFO L480 AbstractCegarLoop]: Abstraction has 762 states and 953 transitions. [2018-09-19 10:03:21,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:03:21,509 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 953 transitions. [2018-09-19 10:03:21,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-19 10:03:21,514 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:03:21,515 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:21,515 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:03:21,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1031908192, now seen corresponding path program 1 times [2018-09-19 10:03:21,515 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:03:21,516 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 175 with the following transitions: [2018-09-19 10:03:21,516 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:03:21,524 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:03:21,525 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:03:24,318 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:03:30,636 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:03:30,636 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 10:03:30,645 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:03:31,450 INFO L232 lantSequenceWeakener]: Weakened 172 states. On average, predicates are now at 73.8% of their original sizes. [2018-09-19 10:03:31,450 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:03:31,806 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:03:31,806 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:03:31,806 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:03:31,806 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:03:31,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:03:31,807 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:03:31,807 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:03:31,808 INFO L87 Difference]: Start difference. First operand 762 states and 953 transitions. Second operand 12 states. [2018-09-19 10:03:38,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:03:38,592 INFO L93 Difference]: Finished difference Result 1677 states and 2220 transitions. [2018-09-19 10:03:38,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:03:38,594 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 174 [2018-09-19 10:03:38,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:03:38,600 INFO L225 Difference]: With dead ends: 1677 [2018-09-19 10:03:38,600 INFO L226 Difference]: Without dead ends: 1067 [2018-09-19 10:03:38,603 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 182 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2018-09-19 10:03:38,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2018-09-19 10:03:38,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 1056. [2018-09-19 10:03:38,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2018-09-19 10:03:38,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1287 transitions. [2018-09-19 10:03:38,644 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1287 transitions. Word has length 174 [2018-09-19 10:03:38,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:03:38,644 INFO L480 AbstractCegarLoop]: Abstraction has 1056 states and 1287 transitions. [2018-09-19 10:03:38,644 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:03:38,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1287 transitions. [2018-09-19 10:03:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-19 10:03:38,648 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:03:38,648 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:03:38,649 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:03:38,649 INFO L82 PathProgramCache]: Analyzing trace with hash 955963171, now seen corresponding path program 1 times [2018-09-19 10:03:38,649 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:03:38,649 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-09-19 10:03:38,650 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:03:38,654 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:03:38,655 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:03:48,141 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:03:48,141 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 10:03:48,148 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:03:48,985 INFO L232 lantSequenceWeakener]: Weakened 191 states. On average, predicates are now at 73.7% of their original sizes. [2018-09-19 10:03:48,985 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:03:49,786 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:03:49,786 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:03:49,787 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:03:49,787 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:03:49,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:03:49,787 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:03:49,788 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:03:49,788 INFO L87 Difference]: Start difference. First operand 1056 states and 1287 transitions. Second operand 12 states. [2018-09-19 10:03:54,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:03:54,566 INFO L93 Difference]: Finished difference Result 2268 states and 2899 transitions. [2018-09-19 10:03:54,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 10:03:54,574 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2018-09-19 10:03:54,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:03:54,580 INFO L225 Difference]: With dead ends: 2268 [2018-09-19 10:03:54,580 INFO L226 Difference]: Without dead ends: 1364 [2018-09-19 10:03:54,583 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 202 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 10:03:54,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1364 states. [2018-09-19 10:03:54,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1364 to 1352. [2018-09-19 10:03:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1352 states. [2018-09-19 10:03:54,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1615 transitions. [2018-09-19 10:03:54,633 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1615 transitions. Word has length 193 [2018-09-19 10:03:54,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:03:54,634 INFO L480 AbstractCegarLoop]: Abstraction has 1352 states and 1615 transitions. [2018-09-19 10:03:54,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:03:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1615 transitions. [2018-09-19 10:03:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-09-19 10:03:54,638 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:03:54,638 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 10:03:54,638 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:03:54,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1636639905, now seen corresponding path program 1 times [2018-09-19 10:03:54,639 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:03:54,639 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-09-19 10:03:54,639 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:03:54,642 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:03:54,643 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:03:56,149 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:04:00,948 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:04:00,948 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 10:04:00,954 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:04:02,075 INFO L232 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 73.69% of their original sizes. [2018-09-19 10:04:02,075 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:04:02,419 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:04:02,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:04:02,419 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:04:02,419 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:04:02,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:04:02,420 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:04:02,420 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:04:02,421 INFO L87 Difference]: Start difference. First operand 1352 states and 1615 transitions. Second operand 10 states. [2018-09-19 10:04:08,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:04:08,873 INFO L93 Difference]: Finished difference Result 2719 states and 3388 transitions. [2018-09-19 10:04:08,880 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:04:08,881 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 205 [2018-09-19 10:04:08,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:04:08,896 INFO L225 Difference]: With dead ends: 2719 [2018-09-19 10:04:08,897 INFO L226 Difference]: Without dead ends: 1521 [2018-09-19 10:04:08,901 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:04:08,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2018-09-19 10:04:08,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1503. [2018-09-19 10:04:08,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1503 states. [2018-09-19 10:04:08,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1503 states to 1503 states and 1792 transitions. [2018-09-19 10:04:08,972 INFO L78 Accepts]: Start accepts. Automaton has 1503 states and 1792 transitions. Word has length 205 [2018-09-19 10:04:08,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:04:08,972 INFO L480 AbstractCegarLoop]: Abstraction has 1503 states and 1792 transitions. [2018-09-19 10:04:08,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:04:08,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states and 1792 transitions. [2018-09-19 10:04:08,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2018-09-19 10:04:08,976 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:04:08,977 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:04:08,977 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:04:08,977 INFO L82 PathProgramCache]: Analyzing trace with hash 920801275, now seen corresponding path program 1 times [2018-09-19 10:04:08,977 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:04:08,978 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 208 with the following transitions: [2018-09-19 10:04:08,978 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [526], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:04:08,980 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:04:08,981 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:04:10,591 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:04:16,150 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:04:16,150 INFO L272 AbstractInterpreter]: Visited 86 different actions 333 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 10:04:16,187 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:04:17,086 INFO L232 lantSequenceWeakener]: Weakened 205 states. On average, predicates are now at 73.68% of their original sizes. [2018-09-19 10:04:17,086 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:04:17,347 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:04:17,347 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:04:17,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:04:17,347 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:04:17,348 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:04:17,348 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:04:17,348 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:04:17,348 INFO L87 Difference]: Start difference. First operand 1503 states and 1792 transitions. Second operand 10 states. [2018-09-19 10:04:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:04:24,029 INFO L93 Difference]: Finished difference Result 3020 states and 3751 transitions. [2018-09-19 10:04:24,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:04:24,035 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 207 [2018-09-19 10:04:24,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:04:24,043 INFO L225 Difference]: With dead ends: 3020 [2018-09-19 10:04:24,044 INFO L226 Difference]: Without dead ends: 1671 [2018-09-19 10:04:24,048 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 214 GetRequests, 198 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 10:04:24,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2018-09-19 10:04:24,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1654. [2018-09-19 10:04:24,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1654 states. [2018-09-19 10:04:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1654 states to 1654 states and 1988 transitions. [2018-09-19 10:04:24,103 INFO L78 Accepts]: Start accepts. Automaton has 1654 states and 1988 transitions. Word has length 207 [2018-09-19 10:04:24,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:04:24,104 INFO L480 AbstractCegarLoop]: Abstraction has 1654 states and 1988 transitions. [2018-09-19 10:04:24,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:04:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1654 states and 1988 transitions. [2018-09-19 10:04:24,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2018-09-19 10:04:24,108 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:04:24,108 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 10:04:24,109 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:04:24,109 INFO L82 PathProgramCache]: Analyzing trace with hash -13651661, now seen corresponding path program 1 times [2018-09-19 10:04:24,109 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:04:24,109 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 212 with the following transitions: [2018-09-19 10:04:24,110 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [542], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:04:24,112 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:04:24,112 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:04:25,570 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:04:31,310 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:04:31,310 INFO L272 AbstractInterpreter]: Visited 90 different actions 349 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 10:04:31,314 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:04:32,185 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 73.66% of their original sizes. [2018-09-19 10:04:32,185 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:04:32,466 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:04:32,467 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:04:32,467 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:04:32,467 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:04:32,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:04:32,468 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:04:32,468 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:04:32,468 INFO L87 Difference]: Start difference. First operand 1654 states and 1988 transitions. Second operand 10 states. [2018-09-19 10:04:39,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:04:39,974 INFO L93 Difference]: Finished difference Result 3477 states and 4328 transitions. [2018-09-19 10:04:39,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:04:39,985 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 211 [2018-09-19 10:04:39,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:04:39,994 INFO L225 Difference]: With dead ends: 3477 [2018-09-19 10:04:39,994 INFO L226 Difference]: Without dead ends: 1977 [2018-09-19 10:04:39,998 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:04:40,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1977 states. [2018-09-19 10:04:40,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1977 to 1954. [2018-09-19 10:04:40,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1954 states. [2018-09-19 10:04:40,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1954 states to 1954 states and 2362 transitions. [2018-09-19 10:04:40,073 INFO L78 Accepts]: Start accepts. Automaton has 1954 states and 2362 transitions. Word has length 211 [2018-09-19 10:04:40,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:04:40,073 INFO L480 AbstractCegarLoop]: Abstraction has 1954 states and 2362 transitions. [2018-09-19 10:04:40,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:04:40,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1954 states and 2362 transitions. [2018-09-19 10:04:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-19 10:04:40,078 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:04:40,078 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 10:04:40,078 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:04:40,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1232998649, now seen corresponding path program 1 times [2018-09-19 10:04:40,079 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:04:40,079 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-09-19 10:04:40,080 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [566], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:04:40,082 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:04:40,083 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:04:41,536 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:04:51,844 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:04:51,845 INFO L272 AbstractInterpreter]: Visited 96 different actions 373 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 10:04:51,854 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:04:52,802 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 73.63% of their original sizes. [2018-09-19 10:04:52,802 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:04:53,073 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:04:53,073 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:04:53,073 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:04:53,073 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:04:53,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:04:53,074 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:04:53,074 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:04:53,075 INFO L87 Difference]: Start difference. First operand 1954 states and 2362 transitions. Second operand 10 states. [2018-09-19 10:05:00,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:05:00,316 INFO L93 Difference]: Finished difference Result 3932 states and 4909 transitions. [2018-09-19 10:05:00,318 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:05:00,319 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 217 [2018-09-19 10:05:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:05:00,328 INFO L225 Difference]: With dead ends: 3932 [2018-09-19 10:05:00,328 INFO L226 Difference]: Without dead ends: 2132 [2018-09-19 10:05:00,333 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 224 GetRequests, 208 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 10:05:00,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2132 states. [2018-09-19 10:05:00,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2132 to 2109. [2018-09-19 10:05:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2109 states. [2018-09-19 10:05:00,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2109 states to 2109 states and 2577 transitions. [2018-09-19 10:05:00,419 INFO L78 Accepts]: Start accepts. Automaton has 2109 states and 2577 transitions. Word has length 217 [2018-09-19 10:05:00,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:05:00,420 INFO L480 AbstractCegarLoop]: Abstraction has 2109 states and 2577 transitions. [2018-09-19 10:05:00,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:05:00,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2109 states and 2577 transitions. [2018-09-19 10:05:00,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-09-19 10:05:00,433 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:05:00,433 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:05:00,434 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:05:00,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1696424128, now seen corresponding path program 1 times [2018-09-19 10:05:00,434 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:05:00,434 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-09-19 10:05:00,434 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [602], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:05:00,437 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:05:00,437 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:05:02,034 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:05:12,680 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:05:12,680 INFO L272 AbstractInterpreter]: Visited 105 different actions 407 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 10:05:12,688 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:05:13,783 INFO L232 lantSequenceWeakener]: Weakened 224 states. On average, predicates are now at 73.6% of their original sizes. [2018-09-19 10:05:13,783 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:05:14,155 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:05:14,156 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:05:14,156 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:05:14,156 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:05:14,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:05:14,157 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:05:14,157 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:05:14,157 INFO L87 Difference]: Start difference. First operand 2109 states and 2577 transitions. Second operand 11 states. [2018-09-19 10:05:19,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:05:19,681 INFO L93 Difference]: Finished difference Result 4320 states and 5463 transitions. [2018-09-19 10:05:19,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:05:19,681 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 226 [2018-09-19 10:05:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:05:19,691 INFO L225 Difference]: With dead ends: 4320 [2018-09-19 10:05:19,691 INFO L226 Difference]: Without dead ends: 2365 [2018-09-19 10:05:19,695 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 234 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:05:19,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2365 states. [2018-09-19 10:05:19,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2365 to 2262. [2018-09-19 10:05:19,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2262 states. [2018-09-19 10:05:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2262 states to 2262 states and 2792 transitions. [2018-09-19 10:05:19,769 INFO L78 Accepts]: Start accepts. Automaton has 2262 states and 2792 transitions. Word has length 226 [2018-09-19 10:05:19,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:05:19,769 INFO L480 AbstractCegarLoop]: Abstraction has 2262 states and 2792 transitions. [2018-09-19 10:05:19,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:05:19,770 INFO L276 IsEmpty]: Start isEmpty. Operand 2262 states and 2792 transitions. [2018-09-19 10:05:19,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-19 10:05:19,773 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:05:19,774 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 10:05:19,774 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:05:19,774 INFO L82 PathProgramCache]: Analyzing trace with hash 629905620, now seen corresponding path program 1 times [2018-09-19 10:05:19,774 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:05:19,775 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-09-19 10:05:19,775 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [626], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:05:19,778 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:05:19,778 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:05:21,149 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:05:29,560 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:05:29,560 INFO L272 AbstractInterpreter]: Visited 111 different actions 433 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 10:05:29,570 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:05:30,594 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 73.57% of their original sizes. [2018-09-19 10:05:30,595 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:05:30,922 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:05:30,923 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:05:30,923 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:05:30,923 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:05:30,923 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:05:30,923 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:05:30,924 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:05:30,924 INFO L87 Difference]: Start difference. First operand 2262 states and 2792 transitions. Second operand 11 states. [2018-09-19 10:05:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:05:38,756 INFO L93 Difference]: Finished difference Result 4808 states and 6139 transitions. [2018-09-19 10:05:38,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 10:05:38,764 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 232 [2018-09-19 10:05:38,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:05:38,774 INFO L225 Difference]: With dead ends: 4808 [2018-09-19 10:05:38,774 INFO L226 Difference]: Without dead ends: 2700 [2018-09-19 10:05:38,779 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 240 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:05:38,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2700 states. [2018-09-19 10:05:38,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2700 to 2670. [2018-09-19 10:05:38,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2670 states. [2018-09-19 10:05:38,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2670 states to 2670 states and 3328 transitions. [2018-09-19 10:05:38,864 INFO L78 Accepts]: Start accepts. Automaton has 2670 states and 3328 transitions. Word has length 232 [2018-09-19 10:05:38,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:05:38,865 INFO L480 AbstractCegarLoop]: Abstraction has 2670 states and 3328 transitions. [2018-09-19 10:05:38,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:05:38,865 INFO L276 IsEmpty]: Start isEmpty. Operand 2670 states and 3328 transitions. [2018-09-19 10:05:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-09-19 10:05:38,906 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:05:38,907 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 10:05:38,907 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:05:38,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1621023163, now seen corresponding path program 1 times [2018-09-19 10:05:38,908 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:05:38,908 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-09-19 10:05:38,908 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [654], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:05:38,911 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:05:38,911 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:05:40,366 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:05:49,658 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:05:49,659 INFO L272 AbstractInterpreter]: Visited 118 different actions 459 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 10:05:49,669 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:05:50,591 INFO L232 lantSequenceWeakener]: Weakened 237 states. On average, predicates are now at 73.55% of their original sizes. [2018-09-19 10:05:50,592 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:05:50,919 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:05:50,919 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:05:50,919 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 10:05:50,919 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:05:50,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 10:05:50,920 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 10:05:50,920 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 10:05:50,920 INFO L87 Difference]: Start difference. First operand 2670 states and 3328 transitions. Second operand 11 states. [2018-09-19 10:05:55,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:05:55,890 INFO L93 Difference]: Finished difference Result 5752 states and 7377 transitions. [2018-09-19 10:05:55,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:05:55,892 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 239 [2018-09-19 10:05:55,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:05:55,904 INFO L225 Difference]: With dead ends: 5752 [2018-09-19 10:05:55,904 INFO L226 Difference]: Without dead ends: 3236 [2018-09-19 10:05:55,910 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 247 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-09-19 10:05:55,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3236 states. [2018-09-19 10:05:56,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3236 to 3129. [2018-09-19 10:05:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3129 states. [2018-09-19 10:05:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3129 states to 3129 states and 3930 transitions. [2018-09-19 10:05:56,022 INFO L78 Accepts]: Start accepts. Automaton has 3129 states and 3930 transitions. Word has length 239 [2018-09-19 10:05:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:05:56,023 INFO L480 AbstractCegarLoop]: Abstraction has 3129 states and 3930 transitions. [2018-09-19 10:05:56,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 10:05:56,023 INFO L276 IsEmpty]: Start isEmpty. Operand 3129 states and 3930 transitions. [2018-09-19 10:05:56,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-09-19 10:05:56,028 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:05:56,028 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 10:05:56,033 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:05:56,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1632333344, now seen corresponding path program 1 times [2018-09-19 10:05:56,033 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:05:56,033 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 243 with the following transitions: [2018-09-19 10:05:56,034 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:05:56,036 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:05:56,037 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:05:57,609 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:06:06,996 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:06:06,997 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 10:06:07,005 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:06:07,941 INFO L232 lantSequenceWeakener]: Weakened 240 states. On average, predicates are now at 73.54% of their original sizes. [2018-09-19 10:06:07,941 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:06:08,392 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:06:08,392 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:06:08,393 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:06:08,393 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:06:08,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:06:08,393 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:06:08,394 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:06:08,394 INFO L87 Difference]: Start difference. First operand 3129 states and 3930 transitions. Second operand 13 states. [2018-09-19 10:06:19,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:06:19,199 INFO L93 Difference]: Finished difference Result 6701 states and 8709 transitions. [2018-09-19 10:06:19,200 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-19 10:06:19,200 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 242 [2018-09-19 10:06:19,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:06:19,214 INFO L225 Difference]: With dead ends: 6701 [2018-09-19 10:06:19,214 INFO L226 Difference]: Without dead ends: 3726 [2018-09-19 10:06:19,221 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 230 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 10:06:19,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2018-09-19 10:06:19,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3529. [2018-09-19 10:06:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3529 states. [2018-09-19 10:06:19,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3529 states to 3529 states and 4443 transitions. [2018-09-19 10:06:19,337 INFO L78 Accepts]: Start accepts. Automaton has 3529 states and 4443 transitions. Word has length 242 [2018-09-19 10:06:19,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:06:19,338 INFO L480 AbstractCegarLoop]: Abstraction has 3529 states and 4443 transitions. [2018-09-19 10:06:19,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:06:19,338 INFO L276 IsEmpty]: Start isEmpty. Operand 3529 states and 4443 transitions. [2018-09-19 10:06:19,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-09-19 10:06:19,344 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:06:19,344 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 10:06:19,344 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:06:19,345 INFO L82 PathProgramCache]: Analyzing trace with hash 348216787, now seen corresponding path program 1 times [2018-09-19 10:06:19,345 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:06:19,345 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-09-19 10:06:19,345 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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 10:06:19,348 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:06:19,349 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:06:22,084 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:06:33,664 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:06:33,664 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 10:06:33,673 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:06:34,624 INFO L232 lantSequenceWeakener]: Weakened 245 states. On average, predicates are now at 73.52% of their original sizes. [2018-09-19 10:06:34,624 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:06:34,928 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:06:34,928 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:06:34,928 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 10:06:34,928 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:06:34,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 10:06:34,929 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 10:06:34,929 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-19 10:06:34,929 INFO L87 Difference]: Start difference. First operand 3529 states and 4443 transitions. Second operand 10 states. [2018-09-19 10:06:40,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:06:40,332 INFO L93 Difference]: Finished difference Result 7079 states and 9092 transitions. [2018-09-19 10:06:40,335 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 10:06:40,335 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 247 [2018-09-19 10:06:40,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:06:40,349 INFO L225 Difference]: With dead ends: 7079 [2018-09-19 10:06:40,349 INFO L226 Difference]: Without dead ends: 3704 [2018-09-19 10:06:40,356 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-09-19 10:06:40,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3704 states. [2018-09-19 10:06:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3704 to 3677. [2018-09-19 10:06:40,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3677 states. [2018-09-19 10:06:40,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3677 states to 3677 states and 4642 transitions. [2018-09-19 10:06:40,475 INFO L78 Accepts]: Start accepts. Automaton has 3677 states and 4642 transitions. Word has length 247 [2018-09-19 10:06:40,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:06:40,476 INFO L480 AbstractCegarLoop]: Abstraction has 3677 states and 4642 transitions. [2018-09-19 10:06:40,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 10:06:40,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 4642 transitions. [2018-09-19 10:06:40,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-09-19 10:06:40,482 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:06:40,482 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 10:06:40,483 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:06:40,483 INFO L82 PathProgramCache]: Analyzing trace with hash -1594368669, now seen corresponding path program 1 times [2018-09-19 10:06:40,483 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:06:40,483 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 252 with the following transitions: [2018-09-19 10:06:40,484 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [365], [367], [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], [667], [671], [675], [679], [683], [687], [691], [695], [699], [702], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-09-19 10:06:40,487 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:06:40,487 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:06:41,980 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:06:55,664 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:06:55,664 INFO L272 AbstractInterpreter]: Visited 130 different actions 634 times. Merged at 7 different actions 28 times. Never widened. Found 5 fixpoints after 2 different actions. Largest state had 24 variables. [2018-09-19 10:06:55,673 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 10:06:56,673 INFO L232 lantSequenceWeakener]: Weakened 249 states. On average, predicates are now at 73.51% of their original sizes. [2018-09-19 10:06:56,674 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:06:56,690 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:06:56,693 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:06:56,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:06:56 BoogieIcfgContainer [2018-09-19 10:06:56,694 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:06:56,695 INFO L168 Benchmark]: Toolchain (without parser) took 259872.85 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 2.8 GB in the end (delta: -1.3 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-19 10:06:56,696 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 10:06:56,697 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.10 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:06:56,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.26 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 10:06:56,699 INFO L168 Benchmark]: Boogie Preprocessor took 263.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2018-09-19 10:06:56,700 INFO L168 Benchmark]: RCFGBuilder took 3617.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 124.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:06:56,700 INFO L168 Benchmark]: TraceAbstraction took 255105.67 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -666.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-19 10:06:56,705 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.10 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 144.26 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 263.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -842.2 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3617.57 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 124.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255105.67 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.8 GB in the end (delta: -666.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 157]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 157). Cancelled while BasicCegarLoop was analyzing trace of length 252 with TraceHistMax 3, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 255.0s OverallTime, 15 OverallIterations, 3 TraceHistogramMax, 97.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2712 SDtfs, 10676 SDslu, 5080 SDs, 0 SdLazy, 26914 SolverSat, 2525 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 84.8s Time, PredicateUnifierStatistics: 28 DeclaredPredicates, 2825 GetRequests, 2583 SyntacticMatches, 0 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 812 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3677occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 136.5s AbstIntTime, 15 AbstIntIterations, 15 AbstIntStrong, 0.9945277522806902 AbsIntWeakeningRatio, 0.11983750846310089 AbsIntAvgWeakeningVarsNumRemoved, 879.398442789438 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 14 MinimizatonAttempts, 792 StatesRemovedByMinimization, 14 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_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-06-56-719.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem10_label35_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-06-56-719.csv Completed graceful shutdown