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/Problem11_label16_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:33:10,925 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:33:10,927 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:33:10,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:33:10,945 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:33:10,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:33:10,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:33:10,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:33:10,952 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:33:10,953 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:33:10,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:33:10,955 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:33:10,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:33:10,957 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:33:10,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:33:10,959 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:33:10,960 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:33:10,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:33:10,964 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:33:10,966 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:33:10,967 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:33:10,968 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:33:10,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:33:10,971 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:33:10,971 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:33:10,972 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:33:10,973 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:33:10,974 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:33:10,975 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:33:10,976 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:33:10,977 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:33:10,977 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:33:10,978 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:33:10,978 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:33:10,979 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:33:10,980 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:33:10,980 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 [2018-09-15 11:33:11,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:33:11,006 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:33:11,007 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:33:11,007 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:33:11,007 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:33:11,007 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:33:11,007 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:33:11,008 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:33:11,008 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:33:11,008 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:33:11,008 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:33:11,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:33:11,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:33:11,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:33:11,010 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:33:11,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:33:11,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:33:11,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:33:11,014 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:33:11,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:33:11,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:33:11,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:33:11,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:33:11,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:33:11,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:33:11,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:33:11,015 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:33:11,015 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:33:11,016 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:33:11,016 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:33:11,016 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:33:11,016 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:33:11,016 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:33:11,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:33:11,079 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:33:11,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:33:11,084 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:33:11,085 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:33:11,085 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label16_true-unreach-call.c [2018-09-15 11:33:11,429 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db1eff6e/42530efff88d48e0a0937d264e52d8f7/FLAG865b73faf [2018-09-15 11:33:11,727 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:33:11,730 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label16_true-unreach-call.c [2018-09-15 11:33:11,748 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db1eff6e/42530efff88d48e0a0937d264e52d8f7/FLAG865b73faf [2018-09-15 11:33:11,770 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0db1eff6e/42530efff88d48e0a0937d264e52d8f7 [2018-09-15 11:33:11,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:33:11,790 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:33:11,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:33:11,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:33:11,804 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:33:11,805 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:33:11" (1/1) ... [2018-09-15 11:33:11,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efa186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:11, skipping insertion in model container [2018-09-15 11:33:11,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:33:11" (1/1) ... [2018-09-15 11:33:11,821 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:33:12,473 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:33:12,494 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:33:12,680 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:33:12,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12 WrapperNode [2018-09-15 11:33:12,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:33:12,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:33:12,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:33:12,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:33:12,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:12,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:12,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:33:12,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:33:12,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:33:12,965 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:33:13,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,252 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (1/1) ... [2018-09-15 11:33:13,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:33:13,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:33:13,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:33:13,359 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:33:13,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (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 [2018-09-15 11:33:13,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:33:13,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:33:13,443 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:33:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:33:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:33:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:33:13,444 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:33:13,444 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:33:17,801 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:33:17,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:33:17 BoogieIcfgContainer [2018-09-15 11:33:17,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:33:17,803 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:33:17,803 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:33:17,806 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:33:17,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:33:11" (1/3) ... [2018-09-15 11:33:17,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be52dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:33:17, skipping insertion in model container [2018-09-15 11:33:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:33:12" (2/3) ... [2018-09-15 11:33:17,808 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be52dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:33:17, skipping insertion in model container [2018-09-15 11:33:17,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:33:17" (3/3) ... [2018-09-15 11:33:17,812 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label16_true-unreach-call.c [2018-09-15 11:33:17,822 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:33:17,834 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:33:17,889 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:33:17,890 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:33:17,890 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:33:17,890 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:33:17,890 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:33:17,890 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:33:17,891 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:33:17,891 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:33:17,891 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:33:17,921 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-15 11:33:17,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-15 11:33:17,931 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:33:17,932 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] [2018-09-15 11:33:17,933 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:33:17,938 INFO L82 PathProgramCache]: Analyzing trace with hash -328635820, now seen corresponding path program 1 times [2018-09-15 11:33:17,940 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:33:17,941 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 51 with the following transitions: [2018-09-15 11:33:17,944 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [1088], [1092], [1098], [1102], [1109], [1110], [1111], [1113] [2018-09-15 11:33:18,009 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:33:18,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:33:20,725 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:33:20,727 INFO L272 AbstractInterpreter]: Visited 49 different actions 49 times. Never merged. Never widened. Never found a fixpoint. Largest state had 27 variables. [2018-09-15 11:33:20,776 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:33:21,768 INFO L232 lantSequenceWeakener]: Weakened 48 states. On average, predicates are now at 75.38% of their original sizes. [2018-09-15 11:33:21,768 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:33:22,067 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:33:22,068 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:33:22,069 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:33:22,069 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:33:22,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:33:22,084 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:33:22,085 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:33:22,088 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 6 states. [2018-09-15 11:33:28,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:33:28,524 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2018-09-15 11:33:28,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:33:28,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2018-09-15 11:33:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:33:28,548 INFO L225 Difference]: With dead ends: 776 [2018-09-15 11:33:28,548 INFO L226 Difference]: Without dead ends: 481 [2018-09-15 11:33:28,557 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:33:28,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2018-09-15 11:33:28,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2018-09-15 11:33:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-15 11:33:28,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 682 transitions. [2018-09-15 11:33:28,657 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 682 transitions. Word has length 50 [2018-09-15 11:33:28,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:33:28,658 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 682 transitions. [2018-09-15 11:33:28,658 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:33:28,658 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 682 transitions. [2018-09-15 11:33:28,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-09-15 11:33:28,666 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:33:28,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:33:28,667 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:33:28,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1355839517, now seen corresponding path program 1 times [2018-09-15 11:33:28,668 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:33:28,668 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 168 with the following transitions: [2018-09-15 11:33:28,669 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-09-15 11:33:28,689 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:33:28,691 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:33:36,746 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:34:46,868 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:34:46,869 INFO L272 AbstractInterpreter]: Visited 124 different actions 359 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-09-15 11:34:46,891 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:35:05,868 INFO L232 lantSequenceWeakener]: Weakened 165 states. On average, predicates are now at 73.82% of their original sizes. [2018-09-15 11:35:05,869 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:35:08,333 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:35:08,334 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:35:08,334 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:35:08,335 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:35:08,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:35:08,337 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:35:08,337 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:35:08,338 INFO L87 Difference]: Start difference. First operand 479 states and 682 transitions. Second operand 11 states. [2018-09-15 11:35:19,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:35:19,103 INFO L93 Difference]: Finished difference Result 957 states and 1541 transitions. [2018-09-15 11:35:19,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:35:19,104 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 167 [2018-09-15 11:35:19,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:35:19,115 INFO L225 Difference]: With dead ends: 957 [2018-09-15 11:35:19,115 INFO L226 Difference]: Without dead ends: 674 [2018-09-15 11:35:19,123 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 174 GetRequests, 119 SyntacticMatches, 38 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 11:35:19,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2018-09-15 11:35:19,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2018-09-15 11:35:19,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-09-15 11:35:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 887 transitions. [2018-09-15 11:35:19,185 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 887 transitions. Word has length 167 [2018-09-15 11:35:19,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:35:19,187 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 887 transitions. [2018-09-15 11:35:19,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:35:19,187 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 887 transitions. [2018-09-15 11:35:19,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2018-09-15 11:35:19,191 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:35:19,192 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:35:19,192 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:35:19,193 INFO L82 PathProgramCache]: Analyzing trace with hash -683310423, now seen corresponding path program 1 times [2018-09-15 11:35:19,193 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:35:19,193 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 178 with the following transitions: [2018-09-15 11:35:19,194 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [750], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-09-15 11:35:19,202 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:35:19,202 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:36:00,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:36:00,289 INFO L272 AbstractInterpreter]: Visited 134 different actions 262 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-09-15 11:36:00,297 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:36:17,585 INFO L232 lantSequenceWeakener]: Weakened 175 states. On average, predicates are now at 73.77% of their original sizes. [2018-09-15 11:36:17,586 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:36:19,682 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:36:19,683 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:36:19,683 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:36:19,683 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:36:19,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:36:19,684 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:36:19,685 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:36:19,685 INFO L87 Difference]: Start difference. First operand 670 states and 887 transitions. Second operand 11 states. [2018-09-15 11:36:39,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:36:39,293 INFO L93 Difference]: Finished difference Result 1149 states and 1747 transitions. [2018-09-15 11:36:39,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:36:39,297 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 177 [2018-09-15 11:36:39,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:36:39,303 INFO L225 Difference]: With dead ends: 1149 [2018-09-15 11:36:39,304 INFO L226 Difference]: Without dead ends: 866 [2018-09-15 11:36:39,306 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 184 GetRequests, 129 SyntacticMatches, 38 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 11:36:39,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2018-09-15 11:36:39,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 861. [2018-09-15 11:36:39,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2018-09-15 11:36:39,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1092 transitions. [2018-09-15 11:36:39,344 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1092 transitions. Word has length 177 [2018-09-15 11:36:39,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:36:39,345 INFO L480 AbstractCegarLoop]: Abstraction has 861 states and 1092 transitions. [2018-09-15 11:36:39,345 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:36:39,345 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1092 transitions. [2018-09-15 11:36:39,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2018-09-15 11:36:39,350 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:36:39,350 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-15 11:36:39,350 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:36:39,350 INFO L82 PathProgramCache]: Analyzing trace with hash -1463851825, now seen corresponding path program 1 times [2018-09-15 11:36:39,351 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:36:39,351 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 183 with the following transitions: [2018-09-15 11:36:39,351 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [301], [303], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-09-15 11:36:39,358 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:36:39,358 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:37:19,887 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:37:19,888 INFO L272 AbstractInterpreter]: Visited 139 different actions 272 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-09-15 11:37:19,896 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown