java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:19:06,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:19:06,918 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:19:06,935 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:19:06,936 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:19:06,937 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:19:06,938 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:19:06,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:19:06,942 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:19:06,943 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:19:06,944 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:19:06,944 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:19:06,945 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:19:06,946 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:19:06,947 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:19:06,948 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:19:06,949 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:19:06,951 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:19:06,953 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:19:06,955 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:19:06,956 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:19:06,957 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:19:06,960 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 04:19:06,967 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:19:06,967 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:19:06,969 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:19:06,969 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:19:06,970 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-19 04:19:06,985 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:19:06,985 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:19:06,986 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:19:06,986 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:19:06,987 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:19:06,987 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:19:06,987 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:19:06,987 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:19:06,987 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:19:06,988 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:19:06,988 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:19:06,988 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:19:06,989 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:19:06,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:19:06,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:19:06,989 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:19:06,989 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:19:06,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:19:06,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:19:06,990 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:19:06,990 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:19:06,990 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:19:06,991 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:19:06,991 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:19:06,991 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:19:06,991 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:19:06,992 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:19:06,992 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:19:06,992 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:19:06,992 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:19:06,992 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:19:06,993 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:19:06,993 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:19:06,993 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:19:07,037 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:19:07,050 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:19:07,054 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:19:07,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:19:07,057 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:19:07,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c [2018-09-19 04:19:07,414 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203fe8688/e1c4df93877746ccac4394cf5b50e2f5/FLAGc6645b092 [2018-09-19 04:19:07,800 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:19:07,801 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label49_true-unreach-call.c [2018-09-19 04:19:07,824 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203fe8688/e1c4df93877746ccac4394cf5b50e2f5/FLAGc6645b092 [2018-09-19 04:19:07,843 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/203fe8688/e1c4df93877746ccac4394cf5b50e2f5 [2018-09-19 04:19:07,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:19:07,858 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:19:07,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:19:07,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:19:07,867 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:19:07,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:07" (1/1) ... [2018-09-19 04:19:07,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77eb0580 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:07, skipping insertion in model container [2018-09-19 04:19:07,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:07" (1/1) ... [2018-09-19 04:19:07,885 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:19:08,749 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:19:08,768 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:19:09,006 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:19:09,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09 WrapperNode [2018-09-19 04:19:09,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:19:09,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:19:09,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:19:09,196 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:19:09,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:09,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:09,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:19:09,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:19:09,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:19:09,447 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:19:09,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:09,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:09,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:09,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:10,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:10,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:10,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (1/1) ... [2018-09-19 04:19:10,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:19:10,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:19:10,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:19:10,100 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:19:10,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (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 04:19:10,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:19:10,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:19:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:19:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:19:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:19:10,185 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:19:10,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:19:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:19:10,186 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:19:10,186 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:19:18,422 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:19:18,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:18 BoogieIcfgContainer [2018-09-19 04:19:18,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:19:18,423 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:19:18,423 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:19:18,426 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:19:18,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:19:07" (1/3) ... [2018-09-19 04:19:18,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3016ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:18, skipping insertion in model container [2018-09-19 04:19:18,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:09" (2/3) ... [2018-09-19 04:19:18,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3016ad60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:18, skipping insertion in model container [2018-09-19 04:19:18,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:18" (3/3) ... [2018-09-19 04:19:18,430 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label49_true-unreach-call.c [2018-09-19 04:19:18,440 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:19:18,449 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:19:18,504 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:19:18,505 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:19:18,505 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:19:18,505 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:19:18,505 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:19:18,506 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:19:18,506 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:19:18,506 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:19:18,506 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:19:18,544 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-19 04:19:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-19 04:19:18,554 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:19:18,555 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:19:18,556 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:19:18,561 INFO L82 PathProgramCache]: Analyzing trace with hash -224629815, now seen corresponding path program 1 times [2018-09-19 04:19:18,563 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:19:18,563 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 60 with the following transitions: [2018-09-19 04:19:18,566 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [1639], [1643], [1649], [1653], [1662], [1663], [1664], [1666] [2018-09-19 04:19:18,628 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:19:18,629 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:19:20,106 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:19:20,108 INFO L272 AbstractInterpreter]: Visited 58 different actions 58 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-19 04:19:20,127 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:19:20,808 INFO L232 lantSequenceWeakener]: Weakened 57 states. On average, predicates are now at 80.67% of their original sizes. [2018-09-19 04:19:20,808 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:19:21,087 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:19:21,088 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:19:21,089 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:19:21,089 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:19:21,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:19:21,102 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:19:21,102 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:19:21,105 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-09-19 04:19:29,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:19:29,802 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-09-19 04:19:29,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:19:29,805 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2018-09-19 04:19:29,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:19:29,828 INFO L225 Difference]: With dead ends: 1184 [2018-09-19 04:19:29,829 INFO L226 Difference]: Without dead ends: 744 [2018-09-19 04:19:29,840 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 58 GetRequests, 54 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 04:19:29,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-09-19 04:19:29,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-09-19 04:19:29,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-09-19 04:19:29,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-09-19 04:19:29,972 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 59 [2018-09-19 04:19:29,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:19:29,973 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-09-19 04:19:29,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:19:29,973 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-09-19 04:19:29,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-09-19 04:19:29,981 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:19:29,981 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:19:29,982 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:19:29,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1950846495, now seen corresponding path program 1 times [2018-09-19 04:19:29,982 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:19:29,983 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-09-19 04:19:29,983 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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 04:19:29,993 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:19:29,993 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:19:32,476 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:19:36,850 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:19:36,850 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 04:19:36,857 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:19:38,112 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 78.6% of their original sizes. [2018-09-19 04:19:38,113 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:19:38,964 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:19:38,965 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:19:38,965 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:19:38,965 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:19:38,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:19:38,967 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:19:38,967 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:19:38,968 INFO L87 Difference]: Start difference. First operand 742 states and 1072 transitions. Second operand 14 states. [2018-09-19 04:19:57,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:19:57,225 INFO L93 Difference]: Finished difference Result 2108 states and 3664 transitions. [2018-09-19 04:19:57,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-09-19 04:19:57,226 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 155 [2018-09-19 04:19:57,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:19:57,239 INFO L225 Difference]: With dead ends: 2108 [2018-09-19 04:19:57,240 INFO L226 Difference]: Without dead ends: 1680 [2018-09-19 04:19:57,245 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 169 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=174, Invalid=638, Unknown=0, NotChecked=0, Total=812 [2018-09-19 04:19:57,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2018-09-19 04:19:57,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1366. [2018-09-19 04:19:57,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1366 states. [2018-09-19 04:19:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1366 states to 1366 states and 1727 transitions. [2018-09-19 04:19:57,319 INFO L78 Accepts]: Start accepts. Automaton has 1366 states and 1727 transitions. Word has length 155 [2018-09-19 04:19:57,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:19:57,320 INFO L480 AbstractCegarLoop]: Abstraction has 1366 states and 1727 transitions. [2018-09-19 04:19:57,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:19:57,321 INFO L276 IsEmpty]: Start isEmpty. Operand 1366 states and 1727 transitions. [2018-09-19 04:19:57,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2018-09-19 04:19:57,330 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:19:57,331 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:19:57,331 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:19:57,332 INFO L82 PathProgramCache]: Analyzing trace with hash 890388268, now seen corresponding path program 1 times [2018-09-19 04:19:57,332 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:19:57,332 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 298 with the following transitions: [2018-09-19 04:19:57,333 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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 04:19:57,345 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:19:57,345 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:20:03,080 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:20:15,866 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:20:15,866 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 04:20:15,908 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:20:18,055 INFO L232 lantSequenceWeakener]: Weakened 295 states. On average, predicates are now at 77.96% of their original sizes. [2018-09-19 04:20:18,056 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:20:18,500 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:20:18,501 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:20:18,501 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:20:18,501 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:20:18,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:20:18,502 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:20:18,502 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:20:18,503 INFO L87 Difference]: Start difference. First operand 1366 states and 1727 transitions. Second operand 13 states. [2018-09-19 04:20:33,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:20:33,512 INFO L93 Difference]: Finished difference Result 2509 states and 3879 transitions. [2018-09-19 04:20:33,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 04:20:33,515 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 297 [2018-09-19 04:20:33,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:20:33,528 INFO L225 Difference]: With dead ends: 2509 [2018-09-19 04:20:33,528 INFO L226 Difference]: Without dead ends: 2081 [2018-09-19 04:20:33,532 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 309 GetRequests, 285 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 04:20:33,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2081 states. [2018-09-19 04:20:33,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2081 to 1682. [2018-09-19 04:20:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2018-09-19 04:20:33,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 2057 transitions. [2018-09-19 04:20:33,598 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 2057 transitions. Word has length 297 [2018-09-19 04:20:33,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:20:33,599 INFO L480 AbstractCegarLoop]: Abstraction has 1682 states and 2057 transitions. [2018-09-19 04:20:33,600 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:20:33,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 2057 transitions. [2018-09-19 04:20:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2018-09-19 04:20:33,609 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:20:33,609 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:20:33,610 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:20:33,610 INFO L82 PathProgramCache]: Analyzing trace with hash -256103236, now seen corresponding path program 1 times [2018-09-19 04:20:33,610 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:20:33,610 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 335 with the following transitions: [2018-09-19 04:20:33,611 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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 04:20:33,630 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:20:33,630 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:20:40,087 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:20:53,038 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:20:53,038 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 04:20:53,044 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:20:55,205 INFO L232 lantSequenceWeakener]: Weakened 332 states. On average, predicates are now at 77.88% of their original sizes. [2018-09-19 04:20:55,205 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:20:55,973 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:20:55,973 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:20:55,973 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:20:55,974 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:20:55,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:20:55,975 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:20:55,975 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:20:55,975 INFO L87 Difference]: Start difference. First operand 1682 states and 2057 transitions. Second operand 14 states. [2018-09-19 04:21:19,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:21:19,501 INFO L93 Difference]: Finished difference Result 2605 states and 3783 transitions. [2018-09-19 04:21:19,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:21:19,502 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 334 [2018-09-19 04:21:19,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:21:19,514 INFO L225 Difference]: With dead ends: 2605 [2018-09-19 04:21:19,515 INFO L226 Difference]: Without dead ends: 2177 [2018-09-19 04:21:19,518 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 346 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:21:19,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2177 states. [2018-09-19 04:21:19,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2177 to 1993. [2018-09-19 04:21:19,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1993 states. [2018-09-19 04:21:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2383 transitions. [2018-09-19 04:21:19,580 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2383 transitions. Word has length 334 [2018-09-19 04:21:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:21:19,581 INFO L480 AbstractCegarLoop]: Abstraction has 1993 states and 2383 transitions. [2018-09-19 04:21:19,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:21:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2383 transitions. [2018-09-19 04:21:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-19 04:21:19,589 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:21:19,589 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:21:19,589 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:21:19,590 INFO L82 PathProgramCache]: Analyzing trace with hash -236106508, now seen corresponding path program 1 times [2018-09-19 04:21:19,590 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:21:19,590 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 347 with the following transitions: [2018-09-19 04:21:19,591 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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 04:21:19,599 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:21:19,599 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:21:25,963 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:21:40,384 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:21:40,384 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 04:21:40,389 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:21:42,278 INFO L232 lantSequenceWeakener]: Weakened 344 states. On average, predicates are now at 77.86% of their original sizes. [2018-09-19 04:21:42,278 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:21:42,759 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:21:42,760 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:21:42,760 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 04:21:42,760 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:21:42,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 04:21:42,761 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 04:21:42,761 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-19 04:21:42,762 INFO L87 Difference]: Start difference. First operand 1993 states and 2383 transitions. Second operand 14 states. [2018-09-19 04:21:53,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:21:53,602 INFO L93 Difference]: Finished difference Result 2735 states and 3747 transitions. [2018-09-19 04:21:53,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-19 04:21:53,603 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 346 [2018-09-19 04:21:53,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:21:53,617 INFO L225 Difference]: With dead ends: 2735 [2018-09-19 04:21:53,617 INFO L226 Difference]: Without dead ends: 2307 [2018-09-19 04:21:53,621 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 358 GetRequests, 333 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 04:21:53,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2018-09-19 04:21:53,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2303. [2018-09-19 04:21:53,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2303 states. [2018-09-19 04:21:53,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2712 transitions. [2018-09-19 04:21:53,698 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2712 transitions. Word has length 346 [2018-09-19 04:21:53,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:21:53,699 INFO L480 AbstractCegarLoop]: Abstraction has 2303 states and 2712 transitions. [2018-09-19 04:21:53,699 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 04:21:53,699 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2712 transitions. [2018-09-19 04:21:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-09-19 04:21:53,709 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:21:53,710 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 04:21:53,710 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:21:53,710 INFO L82 PathProgramCache]: Analyzing trace with hash -633492734, now seen corresponding path program 1 times [2018-09-19 04:21:53,711 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:21:53,711 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 394 with the following transitions: [2018-09-19 04:21:53,711 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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 04:21:53,719 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:21:53,719 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:21:55,340 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:22:20,529 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:22:20,529 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 04:22:20,537 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:22:22,625 INFO L232 lantSequenceWeakener]: Weakened 391 states. On average, predicates are now at 77.82% of their original sizes. [2018-09-19 04:22:22,626 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:22:22,966 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:22:22,966 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:22:22,967 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:22:22,967 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:22:22,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:22:22,968 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:22:22,968 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:22:22,968 INFO L87 Difference]: Start difference. First operand 2303 states and 2712 transitions. Second operand 12 states. [2018-09-19 04:22:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:22:36,046 INFO L93 Difference]: Finished difference Result 3673 states and 5022 transitions. [2018-09-19 04:22:36,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 04:22:36,048 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 393 [2018-09-19 04:22:36,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:22:36,066 INFO L225 Difference]: With dead ends: 3673 [2018-09-19 04:22:36,066 INFO L226 Difference]: Without dead ends: 3245 [2018-09-19 04:22:36,071 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 403 GetRequests, 382 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2018-09-19 04:22:36,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2018-09-19 04:22:36,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 2313. [2018-09-19 04:22:36,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2313 states. [2018-09-19 04:22:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2313 states to 2313 states and 2722 transitions. [2018-09-19 04:22:36,153 INFO L78 Accepts]: Start accepts. Automaton has 2313 states and 2722 transitions. Word has length 393 [2018-09-19 04:22:36,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:22:36,154 INFO L480 AbstractCegarLoop]: Abstraction has 2313 states and 2722 transitions. [2018-09-19 04:22:36,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:22:36,154 INFO L276 IsEmpty]: Start isEmpty. Operand 2313 states and 2722 transitions. [2018-09-19 04:22:36,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2018-09-19 04:22:36,159 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:22:36,160 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:22:36,160 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:22:36,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1898085944, now seen corresponding path program 1 times [2018-09-19 04:22:36,161 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:22:36,161 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 417 with the following transitions: [2018-09-19 04:22:36,161 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], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [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 04:22:36,169 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:22:36,170 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:22:42,540 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:23:13,088 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:23:13,089 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 04:23:13,094 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:23:15,324 INFO L232 lantSequenceWeakener]: Weakened 414 states. On average, predicates are now at 77.78% of their original sizes. [2018-09-19 04:23:15,324 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:23:15,693 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:23:15,694 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:23:15,694 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:23:15,694 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:23:15,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:23:15,695 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:23:15,695 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:23:15,696 INFO L87 Difference]: Start difference. First operand 2313 states and 2722 transitions. Second operand 12 states. Received shutdown request... [2018-09-19 04:23:19,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 04:23:19,919 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:23:19,927 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:23:19,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:23:19 BoogieIcfgContainer [2018-09-19 04:23:19,927 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:23:19,928 INFO L168 Benchmark]: Toolchain (without parser) took 252073.18 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 3.9 GB in the end (delta: -2.5 GB). Peak memory consumption was 277.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:23:19,931 INFO L168 Benchmark]: CDTParser took 0.23 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 04:23:19,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1334.77 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 04:23:19,932 INFO L168 Benchmark]: Boogie Procedure Inliner took 250.96 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 04:23:19,933 INFO L168 Benchmark]: Boogie Preprocessor took 652.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 890.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-19 04:23:19,934 INFO L168 Benchmark]: RCFGBuilder took 8322.79 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: 287.8 MB). Peak memory consumption was 287.8 MB. Max. memory is 7.1 GB. [2018-09-19 04:23:19,935 INFO L168 Benchmark]: TraceAbstraction took 241504.28 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.9 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:23:19,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1334.77 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 250.96 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 652.94 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 890.8 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8322.79 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: 287.8 MB). Peak memory consumption was 287.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241504.28 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 3.9 GB in the end (delta: -1.9 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 163]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 163). Cancelled while BasicCegarLoop was constructing difference of abstraction (2313states) and FLOYD_HOARE automaton (currently 12 states, 12 states before enhancement), while PredicateComparison was comparing new predicate (quantifier-free) to 21 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 241.4s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 93.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2796 SDtfs, 14911 SDslu, 2022 SDs, 0 SdLazy, 23718 SolverSat, 2837 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.4s Time, PredicateUnifierStatistics: 14 DeclaredPredicates, 2068 GetRequests, 1922 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 700 ImplicationChecksByTransitivity, 5.8s 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, 131.0s AbstIntTime, 7 AbstIntIterations, 7 AbstIntStrong, 0.9966230621404158 AbsIntWeakeningRatio, 0.07325639739086803 AbsIntAvgWeakeningVarsNumRemoved, 921.1856497742098 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 6 MinimizatonAttempts, 1835 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_label49_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-23-19-958.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label49_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-23-19-958.csv Completed graceful shutdown