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/Problem17_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-19 04:31:52,974 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 04:31:52,976 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 04:31:52,989 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 04:31:52,989 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 04:31:52,991 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 04:31:52,992 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 04:31:52,994 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 04:31:52,996 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 04:31:52,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 04:31:52,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 04:31:52,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 04:31:52,999 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 04:31:53,001 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 04:31:53,007 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 04:31:53,008 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 04:31:53,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 04:31:53,011 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 04:31:53,016 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 04:31:53,019 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 04:31:53,021 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 04:31:53,022 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 04:31:53,030 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 04:31:53,030 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 04:31:53,030 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 04:31:53,031 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 04:31:53,036 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 04:31:53,037 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 04:31:53,038 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 04:31:53,042 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 04:31:53,042 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 04:31:53,043 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 04:31:53,045 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 04:31:53,045 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 04:31:53,047 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 04:31:53,047 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 04:31:53,048 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 04:31:53,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 04:31:53,075 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 04:31:53,076 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 04:31:53,076 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-19 04:31:53,076 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-19 04:31:53,076 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-19 04:31:53,077 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-19 04:31:53,077 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-19 04:31:53,077 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-19 04:31:53,077 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-19 04:31:53,078 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-19 04:31:53,078 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-19 04:31:53,079 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 04:31:53,079 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-19 04:31:53,080 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 04:31:53,080 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 04:31:53,080 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 04:31:53,080 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 04:31:53,080 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 04:31:53,082 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 04:31:53,082 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 04:31:53,082 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 04:31:53,083 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 04:31:53,083 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 04:31:53,083 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 04:31:53,083 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 04:31:53,084 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 04:31:53,084 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 04:31:53,084 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-19 04:31:53,084 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 04:31:53,084 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-19 04:31:53,085 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 04:31:53,085 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-19 04:31:53,085 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-19 04:31:53,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 04:31:53,170 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 04:31:53,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 04:31:53,177 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 04:31:53,177 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 04:31:53,178 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c [2018-09-19 04:31:53,546 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/286dbfdb0/4c4606d7ed344a3ca2a6d298c1b9e86d/FLAG605dbbde4 [2018-09-19 04:31:53,974 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 04:31:53,975 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c [2018-09-19 04:31:54,004 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/286dbfdb0/4c4606d7ed344a3ca2a6d298c1b9e86d/FLAG605dbbde4 [2018-09-19 04:31:54,021 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/286dbfdb0/4c4606d7ed344a3ca2a6d298c1b9e86d [2018-09-19 04:31:54,033 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 04:31:54,037 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-19 04:31:54,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 04:31:54,038 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 04:31:54,046 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 04:31:54,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:31:54" (1/1) ... [2018-09-19 04:31:54,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@541f7e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:54, skipping insertion in model container [2018-09-19 04:31:54,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:31:54" (1/1) ... [2018-09-19 04:31:54,064 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 04:31:55,089 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:31:55,109 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 04:31:55,480 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 04:31:55,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55 WrapperNode [2018-09-19 04:31:55,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 04:31:55,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-19 04:31:55,733 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-19 04:31:55,733 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-19 04:31:55,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:55,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-19 04:31:56,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 04:31:56,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 04:31:56,052 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 04:31:56,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,813 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (1/1) ... [2018-09-19 04:31:56,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 04:31:56,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 04:31:56,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 04:31:56,966 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 04:31:56,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (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 04:31:57,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 04:31:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 04:31:57,047 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-19 04:31:57,047 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-19 04:31:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-19 04:31:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-19 04:31:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 04:31:57,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 04:31:57,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 04:31:57,049 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 04:32:10,186 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 04:32:10,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:32:10 BoogieIcfgContainer [2018-09-19 04:32:10,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 04:32:10,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 04:32:10,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 04:32:10,192 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 04:32:10,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:31:54" (1/3) ... [2018-09-19 04:32:10,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f92723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:32:10, skipping insertion in model container [2018-09-19 04:32:10,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:31:55" (2/3) ... [2018-09-19 04:32:10,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f92723e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:32:10, skipping insertion in model container [2018-09-19 04:32:10,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:32:10" (3/3) ... [2018-09-19 04:32:10,197 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label02_true-unreach-call.c [2018-09-19 04:32:10,208 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 04:32:10,218 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 04:32:10,281 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 04:32:10,282 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 04:32:10,282 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 04:32:10,282 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 04:32:10,283 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 04:32:10,283 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 04:32:10,283 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 04:32:10,283 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 04:32:10,283 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 04:32:10,322 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-19 04:32:10,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-19 04:32:10,333 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:10,336 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:32:10,337 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:10,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1150781316, now seen corresponding path program 1 times [2018-09-19 04:32:10,346 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:10,348 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 61 with the following transitions: [2018-09-19 04:32:10,351 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [2283], [2287], [2293], [2297], [2306], [2307], [2308], [2310] [2018-09-19 04:32:10,421 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:10,421 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:12,454 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:12,455 INFO L272 AbstractInterpreter]: Visited 59 different actions 59 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-09-19 04:32:12,479 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:13,462 INFO L232 lantSequenceWeakener]: Weakened 58 states. On average, predicates are now at 77.95% of their original sizes. [2018-09-19 04:32:13,462 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:13,818 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:13,820 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:13,820 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 04:32:13,821 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:13,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-19 04:32:13,834 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-19 04:32:13,835 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:32:13,838 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 6 states. [2018-09-19 04:32:33,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:32:33,018 INFO L93 Difference]: Finished difference Result 1642 states and 3016 transitions. [2018-09-19 04:32:33,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-19 04:32:33,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 60 [2018-09-19 04:32:33,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:32:33,048 INFO L225 Difference]: With dead ends: 1642 [2018-09-19 04:32:33,048 INFO L226 Difference]: Without dead ends: 1036 [2018-09-19 04:32:33,060 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 59 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-19 04:32:33,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2018-09-19 04:32:33,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1034. [2018-09-19 04:32:33,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2018-09-19 04:32:33,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1511 transitions. [2018-09-19 04:32:33,188 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1511 transitions. Word has length 60 [2018-09-19 04:32:33,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:32:33,190 INFO L480 AbstractCegarLoop]: Abstraction has 1034 states and 1511 transitions. [2018-09-19 04:32:33,191 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-19 04:32:33,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1511 transitions. [2018-09-19 04:32:33,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-09-19 04:32:33,201 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:32:33,201 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 04:32:33,202 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:32:33,202 INFO L82 PathProgramCache]: Analyzing trace with hash -201939790, now seen corresponding path program 1 times [2018-09-19 04:32:33,204 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:32:33,205 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 136 with the following transitions: [2018-09-19 04:32:33,205 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:32:33,215 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:32:33,216 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:32:35,458 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:32:41,284 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:32:41,285 INFO L272 AbstractInterpreter]: Visited 82 different actions 233 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:32:41,314 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:32:43,046 INFO L232 lantSequenceWeakener]: Weakened 133 states. On average, predicates are now at 76.35% of their original sizes. [2018-09-19 04:32:43,046 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:32:44,673 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:32:44,674 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:32:44,674 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 04:32:44,674 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:32:44,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 04:32:44,676 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 04:32:44,676 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-09-19 04:32:44,677 INFO L87 Difference]: Start difference. First operand 1034 states and 1511 transitions. Second operand 13 states. [2018-09-19 04:33:28,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:33:28,562 INFO L93 Difference]: Finished difference Result 2814 states and 4895 transitions. [2018-09-19 04:33:28,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-19 04:33:28,563 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 135 [2018-09-19 04:33:28,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:33:28,577 INFO L225 Difference]: With dead ends: 2814 [2018-09-19 04:33:28,577 INFO L226 Difference]: Without dead ends: 2220 [2018-09-19 04:33:28,583 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 148 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2018-09-19 04:33:28,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2220 states. [2018-09-19 04:33:28,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2220 to 1497. [2018-09-19 04:33:28,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2018-09-19 04:33:28,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 2009 transitions. [2018-09-19 04:33:28,652 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 2009 transitions. Word has length 135 [2018-09-19 04:33:28,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:33:28,653 INFO L480 AbstractCegarLoop]: Abstraction has 1497 states and 2009 transitions. [2018-09-19 04:33:28,653 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 04:33:28,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 2009 transitions. [2018-09-19 04:33:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-09-19 04:33:28,658 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:33:28,659 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:33:28,659 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:33:28,660 INFO L82 PathProgramCache]: Analyzing trace with hash 1698206154, now seen corresponding path program 1 times [2018-09-19 04:33:28,660 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:33:28,660 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 149 with the following transitions: [2018-09-19 04:33:28,661 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:33:28,666 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:33:28,666 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:33:31,930 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:33:37,342 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:33:37,343 INFO L272 AbstractInterpreter]: Visited 95 different actions 272 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:33:37,377 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:33:38,825 INFO L232 lantSequenceWeakener]: Weakened 146 states. On average, predicates are now at 76.23% of their original sizes. [2018-09-19 04:33:38,828 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:33:39,659 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:33:39,659 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:33:39,659 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:33:39,660 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:33:39,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:33:39,660 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:33:39,661 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:33:39,661 INFO L87 Difference]: Start difference. First operand 1497 states and 2009 transitions. Second operand 11 states. [2018-09-19 04:34:24,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:34:24,624 INFO L93 Difference]: Finished difference Result 2646 states and 4140 transitions. [2018-09-19 04:34:24,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-19 04:34:24,630 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 148 [2018-09-19 04:34:24,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:34:24,642 INFO L225 Difference]: With dead ends: 2646 [2018-09-19 04:34:24,643 INFO L226 Difference]: Without dead ends: 2052 [2018-09-19 04:34:24,645 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 156 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2018-09-19 04:34:24,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2052 states. [2018-09-19 04:34:24,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2052 to 1962. [2018-09-19 04:34:24,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1962 states. [2018-09-19 04:34:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1962 states to 1962 states and 2620 transitions. [2018-09-19 04:34:24,712 INFO L78 Accepts]: Start accepts. Automaton has 1962 states and 2620 transitions. Word has length 148 [2018-09-19 04:34:24,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:34:24,713 INFO L480 AbstractCegarLoop]: Abstraction has 1962 states and 2620 transitions. [2018-09-19 04:34:24,713 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 04:34:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1962 states and 2620 transitions. [2018-09-19 04:34:24,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-09-19 04:34:24,726 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:34:24,726 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 04:34:24,727 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:34:24,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1631996928, now seen corresponding path program 1 times [2018-09-19 04:34:24,727 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:34:24,727 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 224 with the following transitions: [2018-09-19 04:34:24,728 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:34:24,733 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:34:24,733 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:34:26,354 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:34:40,734 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:34:40,735 INFO L272 AbstractInterpreter]: Visited 96 different actions 558 times. Merged at 7 different actions 37 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 2 different actions. Largest state had 26 variables. [2018-09-19 04:34:40,746 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:34:42,408 INFO L232 lantSequenceWeakener]: Weakened 221 states. On average, predicates are now at 75.85% of their original sizes. [2018-09-19 04:34:42,409 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:34:42,871 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:34:42,872 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:34:42,872 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-19 04:34:42,872 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:34:42,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-19 04:34:42,873 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-19 04:34:42,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-19 04:34:42,873 INFO L87 Difference]: Start difference. First operand 1962 states and 2620 transitions. Second operand 12 states. [2018-09-19 04:35:23,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 04:35:23,155 INFO L93 Difference]: Finished difference Result 3982 states and 6007 transitions. [2018-09-19 04:35:23,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 04:35:23,160 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 223 [2018-09-19 04:35:23,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 04:35:23,178 INFO L225 Difference]: With dead ends: 3982 [2018-09-19 04:35:23,179 INFO L226 Difference]: Without dead ends: 3388 [2018-09-19 04:35:23,182 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2018-09-19 04:35:23,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3388 states. [2018-09-19 04:35:23,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3388 to 2433. [2018-09-19 04:35:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2433 states. [2018-09-19 04:35:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2433 states to 2433 states and 3279 transitions. [2018-09-19 04:35:23,270 INFO L78 Accepts]: Start accepts. Automaton has 2433 states and 3279 transitions. Word has length 223 [2018-09-19 04:35:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 04:35:23,271 INFO L480 AbstractCegarLoop]: Abstraction has 2433 states and 3279 transitions. [2018-09-19 04:35:23,271 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-19 04:35:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 2433 states and 3279 transitions. [2018-09-19 04:35:23,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-09-19 04:35:23,275 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 04:35:23,275 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-19 04:35:23,276 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 04:35:23,276 INFO L82 PathProgramCache]: Analyzing trace with hash -1639938640, now seen corresponding path program 1 times [2018-09-19 04:35:23,276 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-19 04:35:23,276 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 225 with the following transitions: [2018-09-19 04:35:23,277 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1030], [1038], [1046], [1054], [1062], [1070], [1078], [1086], [1090], [1092], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1227], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-09-19 04:35:23,281 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-19 04:35:23,281 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-19 04:35:25,215 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-19 04:35:40,629 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-19 04:35:40,629 INFO L272 AbstractInterpreter]: Visited 96 different actions 461 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 1 different actions. Largest state had 26 variables. [2018-09-19 04:35:40,670 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-19 04:35:42,798 INFO L232 lantSequenceWeakener]: Weakened 222 states. On average, predicates are now at 75.85% of their original sizes. [2018-09-19 04:35:42,798 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-19 04:35:43,240 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-19 04:35:43,241 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 04:35:43,241 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 04:35:43,241 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-19 04:35:43,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 04:35:43,242 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 04:35:43,242 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-19 04:35:43,242 INFO L87 Difference]: Start difference. First operand 2433 states and 3279 transitions. Second operand 11 states. Received shutdown request... [2018-09-19 04:36:00,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 04:36:00,936 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 04:36:00,943 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 04:36:00,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:36:00 BoogieIcfgContainer [2018-09-19 04:36:00,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 04:36:00,944 INFO L168 Benchmark]: Toolchain (without parser) took 246910.22 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 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-09-19 04:36:00,947 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 04:36:00,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1693.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:00,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 318.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:00,949 INFO L168 Benchmark]: Boogie Preprocessor took 914.06 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 926.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:00,950 INFO L168 Benchmark]: RCFGBuilder took 13221.63 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 447.3 MB). Peak memory consumption was 447.3 MB. Max. memory is 7.1 GB. [2018-09-19 04:36:00,951 INFO L168 Benchmark]: TraceAbstraction took 230755.29 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -537.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-19 04:36:00,957 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1693.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 318.50 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 914.06 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 926.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13221.63 ms. Allocated memory is still 2.5 GB. Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 447.3 MB). Peak memory consumption was 447.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 230755.29 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 2.4 GB in the end (delta: -537.1 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 167]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 167). Cancelled while BasicCegarLoop was constructing difference of abstraction (2433states) and FLOYD_HOARE automaton (currently 15 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (1881 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 230.6s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 166.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2503 SDtfs, 11509 SDslu, 3815 SDs, 0 SdLazy, 33700 SolverSat, 2571 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 153.5s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 827 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 321 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2433occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 52.3s AbstIntTime, 5 AbstIntIterations, 5 AbstIntStrong, 0.9940184550057161 AbsIntWeakeningRatio, 0.14140127388535031 AbsIntAvgWeakeningVarsNumRemoved, 1069.3617834394904 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 1770 StatesRemovedByMinimization, 4 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/Problem17_label02_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-19_04-36-00-975.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label02_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-19_04-36-00-975.csv Completed graceful shutdown