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_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 11:30:43,886 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 11:30:43,888 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 11:30:43,909 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 11:30:43,909 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 11:30:43,911 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 11:30:43,913 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 11:30:43,915 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 11:30:43,919 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 11:30:43,920 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 11:30:43,921 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 11:30:43,923 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 11:30:43,924 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 11:30:43,927 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 11:30:43,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 11:30:43,937 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 11:30:43,938 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 11:30:43,940 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 11:30:43,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 11:30:43,949 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 11:30:43,952 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 11:30:43,953 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 11:30:43,959 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 11:30:43,959 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 11:30:43,959 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 11:30:43,960 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 11:30:43,962 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 11:30:43,963 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 11:30:43,963 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 11:30:43,967 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 11:30:43,967 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 11:30:43,968 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 11:30:43,968 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 11:30:43,968 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 11:30:43,969 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 11:30:43,973 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 11:30:43,973 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 11:30:44,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 11:30:44,001 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 11:30:44,003 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 11:30:44,003 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 11:30:44,003 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 11:30:44,003 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 11:30:44,004 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 11:30:44,004 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-15 11:30:44,004 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 11:30:44,004 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 11:30:44,005 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-15 11:30:44,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 11:30:44,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 11:30:44,006 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 11:30:44,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 11:30:44,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 11:30:44,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 11:30:44,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 11:30:44,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 11:30:44,010 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 11:30:44,010 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 11:30:44,010 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 11:30:44,011 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 11:30:44,011 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 11:30:44,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 11:30:44,011 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 11:30:44,012 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 11:30:44,012 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 11:30:44,012 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 11:30:44,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 11:30:44,012 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 11:30:44,013 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 11:30:44,013 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 11:30:44,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 11:30:44,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 11:30:44,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 11:30:44,111 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 11:30:44,111 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 11:30:44,112 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-09-15 11:30:44,494 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0247683a1/31b4aa01448046598e18b3bb5192df6a/FLAGccfbdca85 [2018-09-15 11:30:44,830 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 11:30:44,831 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label10_true-unreach-call.c [2018-09-15 11:30:44,851 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0247683a1/31b4aa01448046598e18b3bb5192df6a/FLAGccfbdca85 [2018-09-15 11:30:44,872 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0247683a1/31b4aa01448046598e18b3bb5192df6a [2018-09-15 11:30:44,890 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 11:30:44,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 11:30:44,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 11:30:44,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 11:30:44,909 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 11:30:44,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:30:44" (1/1) ... [2018-09-15 11:30:44,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bedad32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:44, skipping insertion in model container [2018-09-15 11:30:44,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 11:30:44" (1/1) ... [2018-09-15 11:30:44,926 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 11:30:45,710 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:30:45,733 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 11:30:45,933 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 11:30:46,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46 WrapperNode [2018-09-15 11:30:46,025 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 11:30:46,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 11:30:46,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 11:30:46,027 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 11:30:46,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 11:30:46,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 11:30:46,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 11:30:46,188 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 11:30:46,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,510 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (1/1) ... [2018-09-15 11:30:46,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 11:30:46,644 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 11:30:46,644 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 11:30:46,644 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 11:30:46,646 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (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 11:30:46,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 11:30:46,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 11:30:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 11:30:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 11:30:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 11:30:46,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 11:30:46,724 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 11:30:46,725 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 11:30:51,557 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 11:30:51,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:30:51 BoogieIcfgContainer [2018-09-15 11:30:51,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 11:30:51,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 11:30:51,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 11:30:51,566 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 11:30:51,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 11:30:44" (1/3) ... [2018-09-15 11:30:51,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed6b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:30:51, skipping insertion in model container [2018-09-15 11:30:51,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 11:30:46" (2/3) ... [2018-09-15 11:30:51,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71ed6b4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 11:30:51, skipping insertion in model container [2018-09-15 11:30:51,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 11:30:51" (3/3) ... [2018-09-15 11:30:51,572 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label10_true-unreach-call.c [2018-09-15 11:30:51,584 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 11:30:51,598 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 11:30:51,673 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 11:30:51,675 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 11:30:51,675 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 11:30:51,675 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 11:30:51,675 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 11:30:51,675 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 11:30:51,676 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 11:30:51,676 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 11:30:51,676 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 11:30:51,724 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-15 11:30:51,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-15 11:30:51,738 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:30:51,740 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] [2018-09-15 11:30:51,741 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:30:51,749 INFO L82 PathProgramCache]: Analyzing trace with hash -250768471, now seen corresponding path program 1 times [2018-09-15 11:30:51,754 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:30:51,756 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-09-15 11:30:51,759 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [1088], [1092], [1098], [1102], [1109], [1110], [1111], [1113] [2018-09-15 11:30:51,846 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:30:51,846 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:30:53,516 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:30:53,519 INFO L272 AbstractInterpreter]: Visited 28 different actions 28 times. Never merged. Never widened. Never found a fixpoint. Largest state had 27 variables. [2018-09-15 11:30:53,535 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:30:54,216 INFO L232 lantSequenceWeakener]: Weakened 27 states. On average, predicates are now at 74.18% of their original sizes. [2018-09-15 11:30:54,216 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:30:54,533 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:30:54,535 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:30:54,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 11:30:54,536 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:30:54,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 11:30:54,550 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 11:30:54,550 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 11:30:54,553 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 6 states. [2018-09-15 11:30:59,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:30:59,453 INFO L93 Difference]: Finished difference Result 776 states and 1363 transitions. [2018-09-15 11:30:59,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 11:30:59,456 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2018-09-15 11:30:59,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:30:59,475 INFO L225 Difference]: With dead ends: 776 [2018-09-15 11:30:59,476 INFO L226 Difference]: Without dead ends: 481 [2018-09-15 11:30:59,485 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 28 GetRequests, 24 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 11:30:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2018-09-15 11:30:59,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 479. [2018-09-15 11:30:59,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-15 11:30:59,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 682 transitions. [2018-09-15 11:30:59,569 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 682 transitions. Word has length 29 [2018-09-15 11:30:59,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:30:59,570 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 682 transitions. [2018-09-15 11:30:59,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 11:30:59,570 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 682 transitions. [2018-09-15 11:30:59,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-15 11:30:59,578 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:30:59,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:59,579 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:30:59,579 INFO L82 PathProgramCache]: Analyzing trace with hash 2098065601, now seen corresponding path program 1 times [2018-09-15 11:30:59,579 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:30:59,580 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-09-15 11:30:59,580 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [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 11:30:59,601 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:30:59,601 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:31:08,762 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-09-15 11:32:17,074 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:32:17,074 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 11:32:17,134 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:32:35,495 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 73.36% of their original sizes. [2018-09-15 11:32:35,496 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:32:37,400 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:32:37,401 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:32:37,401 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:32:37,402 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:32:37,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:32:37,405 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:32:37,405 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:32:37,405 INFO L87 Difference]: Start difference. First operand 479 states and 682 transitions. Second operand 11 states. [2018-09-15 11:32:55,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:32:55,968 INFO L93 Difference]: Finished difference Result 957 states and 1541 transitions. [2018-09-15 11:32:55,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:32:55,971 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 146 [2018-09-15 11:32:55,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:32:55,977 INFO L225 Difference]: With dead ends: 957 [2018-09-15 11:32:55,977 INFO L226 Difference]: Without dead ends: 674 [2018-09-15 11:32:55,980 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 153 GetRequests, 119 SyntacticMatches, 17 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 11:32:55,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2018-09-15 11:32:56,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 670. [2018-09-15 11:32:56,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 670 states. [2018-09-15 11:32:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 887 transitions. [2018-09-15 11:32:56,027 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 887 transitions. Word has length 146 [2018-09-15 11:32:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:32:56,028 INFO L480 AbstractCegarLoop]: Abstraction has 670 states and 887 transitions. [2018-09-15 11:32:56,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:32:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 887 transitions. [2018-09-15 11:32:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-15 11:32:56,036 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:32:56,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:32:56,036 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:32:56,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1661237621, now seen corresponding path program 1 times [2018-09-15 11:32:56,037 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:32:56,037 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-09-15 11:32:56,038 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [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 11:32:56,044 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:32:56,045 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:33:34,441 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:33:34,443 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 11:33:34,452 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 11:33:52,223 INFO L232 lantSequenceWeakener]: Weakened 154 states. On average, predicates are now at 73.34% of their original sizes. [2018-09-15 11:33:52,223 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 11:33:53,499 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 11:33:53,500 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 11:33:53,500 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-15 11:33:53,500 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 11:33:53,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-15 11:33:53,501 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-15 11:33:53,501 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-09-15 11:33:53,501 INFO L87 Difference]: Start difference. First operand 670 states and 887 transitions. Second operand 11 states. [2018-09-15 11:34:04,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 11:34:04,143 INFO L93 Difference]: Finished difference Result 1149 states and 1747 transitions. [2018-09-15 11:34:04,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-15 11:34:04,145 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 156 [2018-09-15 11:34:04,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 11:34:04,151 INFO L225 Difference]: With dead ends: 1149 [2018-09-15 11:34:04,151 INFO L226 Difference]: Without dead ends: 866 [2018-09-15 11:34:04,153 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 163 GetRequests, 129 SyntacticMatches, 17 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-09-15 11:34:04,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2018-09-15 11:34:04,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 861. [2018-09-15 11:34:04,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 861 states. [2018-09-15 11:34:04,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1092 transitions. [2018-09-15 11:34:04,195 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1092 transitions. Word has length 156 [2018-09-15 11:34:04,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 11:34:04,196 INFO L480 AbstractCegarLoop]: Abstraction has 861 states and 1092 transitions. [2018-09-15 11:34:04,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-15 11:34:04,196 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1092 transitions. [2018-09-15 11:34:04,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-15 11:34:04,203 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 11:34:04,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:34:04,204 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 11:34:04,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1867585965, now seen corresponding path program 1 times [2018-09-15 11:34:04,204 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 11:34:04,205 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 162 with the following transitions: [2018-09-15 11:34:04,205 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [133], [135], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [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 11:34:04,211 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-15 11:34:04,211 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 11:34:41,289 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 11:34:41,289 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 11:34:41,296 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown