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/Problem15_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 10:54:54,908 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 10:54:54,910 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 10:54:54,922 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 10:54:54,922 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 10:54:54,924 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 10:54:54,925 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 10:54:54,927 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 10:54:54,928 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 10:54:54,929 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 10:54:54,930 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 10:54:54,930 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 10:54:54,931 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 10:54:54,932 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 10:54:54,933 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 10:54:54,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 10:54:54,936 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 10:54:54,942 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 10:54:54,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 10:54:54,946 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 10:54:54,947 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 10:54:54,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 10:54:54,950 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 10:54:54,951 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 10:54:54,951 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 10:54:54,952 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 10:54:54,953 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 10:54:54,954 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 10:54:54,954 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 10:54:54,956 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 10:54:54,956 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 10:54:54,957 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-19 10:54:54,959 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 10:54:54,979 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 10:54:54,979 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 10:54:54,980 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 10:54:54,980 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 10:54:54,981 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 10:54:54,981 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 10:54:54,981 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-19 10:54:54,981 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 10:54:54,981 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-19 10:54:54,983 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 10:54:54,984 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 10:54:54,984 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 10:54:54,984 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 10:54:54,985 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 10:54:54,985 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 10:54:54,985 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 10:54:54,986 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 10:54:54,986 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 10:54:54,986 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 10:54:54,986 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 10:54:54,988 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 10:54:54,989 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 10:54:54,989 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 10:54:54,989 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 10:54:54,989 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 10:54:54,989 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 10:54:54,990 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 10:54:54,990 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 10:54:54,990 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 10:54:54,992 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 10:54:54,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 10:54:54,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 10:54:54,992 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 10:54:54,993 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 10:54:54,993 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 10:54:55,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 10:54:55,057 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 10:54:55,061 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 10:54:55,063 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 10:54:55,064 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 10:54:55,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label52_true-unreach-call.c [2018-09-19 10:54:55,410 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8898804/ef379c6435fe490ba3b62cfecbe56156/FLAG36144be66 [2018-09-19 10:54:55,825 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 10:54:55,826 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label52_true-unreach-call.c [2018-09-19 10:54:55,852 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8898804/ef379c6435fe490ba3b62cfecbe56156/FLAG36144be66 [2018-09-19 10:54:55,872 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d8898804/ef379c6435fe490ba3b62cfecbe56156 [2018-09-19 10:54:55,882 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 10:54:55,884 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 10:54:55,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 10:54:55,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 10:54:55,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 10:54:55,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:54:55" (1/1) ... [2018-09-19 10:54:55,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674df799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:55, skipping insertion in model container [2018-09-19 10:54:55,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 10:54:55" (1/1) ... [2018-09-19 10:54:55,909 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 10:54:56,803 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:54:56,823 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 10:54:57,102 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 10:54:57,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57 WrapperNode [2018-09-19 10:54:57,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 10:54:57,240 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 10:54:57,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 10:54:57,240 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 10:54:57,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:57,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:57,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 10:54:57,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 10:54:57,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 10:54:57,536 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 10:54:58,041 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,070 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (1/1) ... [2018-09-19 10:54:58,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 10:54:58,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 10:54:58,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 10:54:58,368 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 10:54:58,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (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 10:54:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 10:54:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 10:54:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 10:54:58,443 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 10:54:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 10:54:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 10:54:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 10:54:58,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 10:54:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 10:54:58,445 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 10:55:06,715 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 10:55:06,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:55:06 BoogieIcfgContainer [2018-09-19 10:55:06,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 10:55:06,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 10:55:06,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 10:55:06,720 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 10:55:06,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 10:54:55" (1/3) ... [2018-09-19 10:55:06,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b65fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:55:06, skipping insertion in model container [2018-09-19 10:55:06,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 10:54:57" (2/3) ... [2018-09-19 10:55:06,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b65fb64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 10:55:06, skipping insertion in model container [2018-09-19 10:55:06,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 10:55:06" (3/3) ... [2018-09-19 10:55:06,725 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label52_true-unreach-call.c [2018-09-19 10:55:06,736 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 10:55:06,746 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 10:55:06,805 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 10:55:06,806 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 10:55:06,806 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 10:55:06,806 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 10:55:06,806 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 10:55:06,807 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 10:55:06,807 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 10:55:06,807 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 10:55:06,807 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 10:55:06,841 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 10:55:06,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-19 10:55:06,851 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:55:06,852 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] [2018-09-19 10:55:06,853 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:55:06,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1248930748, now seen corresponding path program 1 times [2018-09-19 10:55:06,862 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:55:06,863 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 47 with the following transitions: [2018-09-19 10:55:06,865 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 10:55:06,926 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:55:06,927 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:55:07,921 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:55:07,923 INFO L272 AbstractInterpreter]: Visited 45 different actions 45 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 10:55:07,957 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:55:08,569 INFO L232 lantSequenceWeakener]: Weakened 44 states. On average, predicates are now at 80.33% of their original sizes. [2018-09-19 10:55:08,570 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:55:08,860 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:55:08,862 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:55:08,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 10:55:08,863 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:55:08,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 10:55:08,877 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 10:55:08,878 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:55:08,881 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 10:55:19,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:55:19,724 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 10:55:19,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 10:55:19,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2018-09-19 10:55:19,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:55:19,751 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 10:55:19,751 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 10:55:19,761 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 10:55:19,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 10:55:19,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 10:55:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 10:55:19,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 10:55:19,868 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 46 [2018-09-19 10:55:19,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:55:19,869 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 10:55:19,869 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 10:55:19,870 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 10:55:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-19 10:55:19,877 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:55:19,877 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:19,878 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:55:19,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1863067251, now seen corresponding path program 1 times [2018-09-19 10:55:19,878 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:55:19,878 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 143 with the following transitions: [2018-09-19 10:55:19,879 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:55:19,888 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:55:19,888 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:55:22,079 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:55:26,037 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:55:26,038 INFO L272 AbstractInterpreter]: Visited 103 different actions 296 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 10:55:26,046 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:55:26,930 INFO L232 lantSequenceWeakener]: Weakened 140 states. On average, predicates are now at 78.3% of their original sizes. [2018-09-19 10:55:26,930 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:55:27,567 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:55:27,568 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:55:27,568 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:55:27,568 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:55:27,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:55:27,570 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:55:27,570 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:55:27,570 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 13 states. [2018-09-19 10:55:58,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:55:58,037 INFO L93 Difference]: Finished difference Result 2081 states and 3617 transitions. [2018-09-19 10:55:58,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:55:58,038 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 142 [2018-09-19 10:55:58,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:55:58,048 INFO L225 Difference]: With dead ends: 2081 [2018-09-19 10:55:58,048 INFO L226 Difference]: Without dead ends: 1653 [2018-09-19 10:55:58,052 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2018-09-19 10:55:58,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2018-09-19 10:55:58,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1366. [2018-09-19 10:55:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2018-09-19 10:55:58,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1727 transitions. [2018-09-19 10:55:58,117 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1727 transitions. Word has length 142 [2018-09-19 10:55:58,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:55:58,118 INFO L480 AbstractCegarLoop]: Abstraction has 1366 states and 1727 transitions. [2018-09-19 10:55:58,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:55:58,118 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1727 transitions. [2018-09-19 10:55:58,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2018-09-19 10:55:58,127 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:55:58,128 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:55:58,128 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:55:58,129 INFO L82 PathProgramCache]: Analyzing trace with hash -344607456, now seen corresponding path program 1 times [2018-09-19 10:55:58,129 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:55:58,129 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 285 with the following transitions: [2018-09-19 10:55:58,130 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:55:58,144 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:55:58,145 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:56:03,942 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:56:16,147 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:56:16,148 INFO L272 AbstractInterpreter]: Visited 245 different actions 722 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 10:56:16,154 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:56:17,545 INFO L232 lantSequenceWeakener]: Weakened 282 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 10:56:17,546 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:56:18,041 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:56:18,041 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:56:18,042 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 10:56:18,042 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:56:18,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 10:56:18,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 10:56:18,046 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 10:56:18,046 INFO L87 Difference]: Start difference. First operand 1366 states and 1727 transitions. Second operand 13 states. [2018-09-19 10:56:33,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:56:33,320 INFO L93 Difference]: Finished difference Result 2509 states and 3879 transitions. [2018-09-19 10:56:33,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 10:56:33,321 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 284 [2018-09-19 10:56:33,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:56:33,335 INFO L225 Difference]: With dead ends: 2509 [2018-09-19 10:56:33,335 INFO L226 Difference]: Without dead ends: 2081 [2018-09-19 10:56:33,339 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 296 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2018-09-19 10:56:33,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2018-09-19 10:56:33,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1682. [2018-09-19 10:56:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2018-09-19 10:56:33,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2057 transitions. [2018-09-19 10:56:33,401 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2057 transitions. Word has length 284 [2018-09-19 10:56:33,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:56:33,402 INFO L480 AbstractCegarLoop]: Abstraction has 1682 states and 2057 transitions. [2018-09-19 10:56:33,402 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 10:56:33,403 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2057 transitions. [2018-09-19 10:56:33,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2018-09-19 10:56:33,412 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:56:33,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:56:33,412 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:56:33,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1351787186, now seen corresponding path program 1 times [2018-09-19 10:56:33,413 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:56:33,413 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 322 with the following transitions: [2018-09-19 10:56:33,414 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:56:33,435 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:56:33,435 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:56:39,361 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:56:51,431 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:56:51,431 INFO L272 AbstractInterpreter]: Visited 282 different actions 833 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 10:56:51,440 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:56:52,953 INFO L232 lantSequenceWeakener]: Weakened 319 states. On average, predicates are now at 77.72% of their original sizes. [2018-09-19 10:56:52,954 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:56:53,462 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:56:53,463 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:56:53,463 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:56:53,463 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:56:53,464 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:56:53,464 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:56:53,465 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:56:53,465 INFO L87 Difference]: Start difference. First operand 1682 states and 2057 transitions. Second operand 14 states. [2018-09-19 10:57:14,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:57:14,620 INFO L93 Difference]: Finished difference Result 2605 states and 3783 transitions. [2018-09-19 10:57:14,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:57:14,621 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 321 [2018-09-19 10:57:14,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:57:14,634 INFO L225 Difference]: With dead ends: 2605 [2018-09-19 10:57:14,634 INFO L226 Difference]: Without dead ends: 2177 [2018-09-19 10:57:14,637 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 333 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:57:14,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2018-09-19 10:57:14,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1993. [2018-09-19 10:57:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2018-09-19 10:57:14,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2383 transitions. [2018-09-19 10:57:14,699 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2383 transitions. Word has length 321 [2018-09-19 10:57:14,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:57:14,700 INFO L480 AbstractCegarLoop]: Abstraction has 1993 states and 2383 transitions. [2018-09-19 10:57:14,700 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:57:14,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2383 transitions. [2018-09-19 10:57:14,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2018-09-19 10:57:14,706 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:57:14,707 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:57:14,707 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:57:14,707 INFO L82 PathProgramCache]: Analyzing trace with hash 109129210, now seen corresponding path program 1 times [2018-09-19 10:57:14,707 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:57:14,708 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 334 with the following transitions: [2018-09-19 10:57:14,708 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:57:14,716 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:57:14,716 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:57:20,897 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:57:34,532 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:57:34,532 INFO L272 AbstractInterpreter]: Visited 294 different actions 869 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 10:57:34,540 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:57:36,081 INFO L232 lantSequenceWeakener]: Weakened 331 states. On average, predicates are now at 77.71% of their original sizes. [2018-09-19 10:57:36,082 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:57:36,545 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:57:36,546 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:57:36,546 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 10:57:36,546 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:57:36,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 10:57:36,547 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 10:57:36,547 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 10:57:36,548 INFO L87 Difference]: Start difference. First operand 1993 states and 2383 transitions. Second operand 14 states. [2018-09-19 10:57:53,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:57:53,921 INFO L93 Difference]: Finished difference Result 2735 states and 3747 transitions. [2018-09-19 10:57:53,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 10:57:53,922 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 333 [2018-09-19 10:57:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:57:53,932 INFO L225 Difference]: With dead ends: 2735 [2018-09-19 10:57:53,933 INFO L226 Difference]: Without dead ends: 2307 [2018-09-19 10:57:53,935 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 345 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=529, Unknown=0, NotChecked=0, Total=702 [2018-09-19 10:57:53,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2018-09-19 10:57:53,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2303. [2018-09-19 10:57:53,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2303 states. [2018-09-19 10:57:53,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2712 transitions. [2018-09-19 10:57:53,998 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2712 transitions. Word has length 333 [2018-09-19 10:57:53,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:57:53,998 INFO L480 AbstractCegarLoop]: Abstraction has 2303 states and 2712 transitions. [2018-09-19 10:57:53,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 10:57:53,999 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2712 transitions. [2018-09-19 10:57:54,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2018-09-19 10:57:54,007 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:57:54,008 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:57:54,008 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:57:54,008 INFO L82 PathProgramCache]: Analyzing trace with hash 840731305, now seen corresponding path program 1 times [2018-09-19 10:57:54,009 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:57:54,009 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 381 with the following transitions: [2018-09-19 10:57:54,009 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:57:54,015 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:57:54,016 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:57:55,601 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:58:20,846 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:58:20,846 INFO L272 AbstractInterpreter]: Visited 246 different actions 1215 times. Merged at 7 different actions 29 times. Never widened. Found 6 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-19 10:58:20,857 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 10:58:22,593 INFO L232 lantSequenceWeakener]: Weakened 378 states. On average, predicates are now at 77.68% of their original sizes. [2018-09-19 10:58:22,593 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:58:23,030 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 10:58:23,031 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 10:58:23,031 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 10:58:23,032 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 10:58:23,032 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 10:58:23,033 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 10:58:23,033 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 10:58:23,033 INFO L87 Difference]: Start difference. First operand 2303 states and 2712 transitions. Second operand 12 states. [2018-09-19 10:58:37,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 10:58:37,109 INFO L93 Difference]: Finished difference Result 3673 states and 5022 transitions. [2018-09-19 10:58:37,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 10:58:37,114 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 380 [2018-09-19 10:58:37,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 10:58:37,132 INFO L225 Difference]: With dead ends: 3673 [2018-09-19 10:58:37,133 INFO L226 Difference]: Without dead ends: 3245 [2018-09-19 10:58:37,138 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 390 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-19 10:58:37,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2018-09-19 10:58:37,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 2313. [2018-09-19 10:58:37,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2018-09-19 10:58:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2722 transitions. [2018-09-19 10:58:37,226 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2722 transitions. Word has length 380 [2018-09-19 10:58:37,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 10:58:37,227 INFO L480 AbstractCegarLoop]: Abstraction has 2313 states and 2722 transitions. [2018-09-19 10:58:37,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 10:58:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2722 transitions. [2018-09-19 10:58:37,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-09-19 10:58:37,232 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 10:58:37,233 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 10:58:37,233 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 10:58:37,234 INFO L82 PathProgramCache]: Analyzing trace with hash -1235875835, now seen corresponding path program 1 times [2018-09-19 10:58:37,234 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 10:58:37,234 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 404 with the following transitions: [2018-09-19 10:58:37,235 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [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], [341], [343], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [566], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-09-19 10:58:37,244 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-19 10:58:37,244 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 10:58:43,499 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 10:59:15,753 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 10:59:15,754 INFO L272 AbstractInterpreter]: Visited 295 different actions 1458 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 10:59:15,756 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-09-19 10:59:17,767 INFO L232 lantSequenceWeakener]: Weakened 401 states. On average, predicates are now at 77.65% of their original sizes. [2018-09-19 10:59:17,767 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 10:59:17,792 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 10:59:17,797 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 10:59:17,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 10:59:17 BoogieIcfgContainer [2018-09-19 10:59:17,798 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 10:59:17,799 INFO L168 Benchmark]: Toolchain (without parser) took 261916.43 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 3.4 GB in the end (delta: -2.0 GB). Peak memory consumption was 731.7 MB. Max. memory is 7.1 GB. [2018-09-19 10:59:17,801 INFO L168 Benchmark]: CDTParser took 0.30 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 10:59:17,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1353.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-19 10:59:17,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 295.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. [2018-09-19 10:59:17,803 INFO L168 Benchmark]: Boogie Preprocessor took 832.39 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 876.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 10:59:17,804 INFO L168 Benchmark]: RCFGBuilder took 8348.04 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 295.6 MB). Peak memory consumption was 295.6 MB. Max. memory is 7.1 GB. [2018-09-19 10:59:17,805 INFO L168 Benchmark]: TraceAbstraction took 251081.12 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 426.0 MB. Max. memory is 7.1 GB. [2018-09-19 10:59:17,810 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 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 1353.54 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 295.00 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.5 MB). Peak memory consumption was 42.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 832.39 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 876.6 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8348.04 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 295.6 MB). Peak memory consumption was 295.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 251081.12 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.4 GB in the end (delta: -1.4 GB). Peak memory consumption was 426.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was analyzing trace of length 404 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 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 251.0s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 109.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2765 SDtfs, 12897 SDslu, 3030 SDs, 0 SdLazy, 27689 SolverSat, 2775 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98.3s Time, PredicateUnifierStatistics: 12 DeclaredPredicates, 1562 GetRequests, 1440 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2313occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 128.5s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9964614946613297 AbsIntWeakeningRatio, 0.07676130389064142 AbsIntAvgWeakeningVarsNumRemoved, 904.1172450052576 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 1808 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label52_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_10-59-17-825.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label52_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_10-59-17-825.csv Completed graceful shutdown