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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label13_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-15 15:30:48,781 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-15 15:30:48,783 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-15 15:30:48,796 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-15 15:30:48,796 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-15 15:30:48,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-15 15:30:48,799 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-15 15:30:48,801 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-15 15:30:48,802 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-15 15:30:48,803 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-15 15:30:48,804 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-15 15:30:48,804 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-15 15:30:48,805 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-15 15:30:48,808 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-15 15:30:48,810 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-15 15:30:48,812 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-15 15:30:48,813 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-15 15:30:48,815 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-15 15:30:48,818 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-15 15:30:48,819 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-15 15:30:48,820 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-15 15:30:48,821 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-15 15:30:48,824 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-15 15:30:48,824 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-15 15:30:48,824 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-15 15:30:48,825 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-15 15:30:48,826 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-15 15:30:48,827 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-15 15:30:48,828 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-15 15:30:48,829 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-15 15:30:48,829 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-15 15:30:48,830 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-15 15:30:48,830 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-15 15:30:48,831 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-15 15:30:48,832 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-15 15:30:48,832 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-15 15:30:48,833 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-15 15:30:48,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-15 15:30:48,849 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-15 15:30:48,850 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-15 15:30:48,850 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-15 15:30:48,851 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-15 15:30:48,851 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-15 15:30:48,851 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-15 15:30:48,851 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-15 15:30:48,852 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-15 15:30:48,852 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-15 15:30:48,852 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-15 15:30:48,852 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-15 15:30:48,853 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-15 15:30:48,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-15 15:30:48,853 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-15 15:30:48,853 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-15 15:30:48,854 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-15 15:30:48,854 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-15 15:30:48,854 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-15 15:30:48,854 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-15 15:30:48,855 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-15 15:30:48,855 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-15 15:30:48,855 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-15 15:30:48,855 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-15 15:30:48,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-15 15:30:48,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-15 15:30:48,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-15 15:30:48,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-15 15:30:48,856 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-15 15:30:48,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-15 15:30:48,857 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-15 15:30:48,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-15 15:30:48,857 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-15 15:30:48,857 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-15 15:30:48,921 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-15 15:30:48,940 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-15 15:30:48,947 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-15 15:30:48,949 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-15 15:30:48,949 INFO L276 PluginConnector]: CDTParser initialized [2018-09-15 15:30:48,950 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label13_true-unreach-call.c [2018-09-15 15:30:49,324 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce9b7ee9/da80441c55c54d61a8b0625d32edc4c5/FLAG30809c0d2 [2018-09-15 15:30:49,760 INFO L277 CDTParser]: Found 1 translation units. [2018-09-15 15:30:49,761 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label13_true-unreach-call.c [2018-09-15 15:30:49,793 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce9b7ee9/da80441c55c54d61a8b0625d32edc4c5/FLAG30809c0d2 [2018-09-15 15:30:49,810 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8ce9b7ee9/da80441c55c54d61a8b0625d32edc4c5 [2018-09-15 15:30:49,825 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-15 15:30:49,828 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-15 15:30:49,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-15 15:30:49,830 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-15 15:30:49,839 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-15 15:30:49,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:30:49" (1/1) ... [2018-09-15 15:30:49,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d0561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:49, skipping insertion in model container [2018-09-15 15:30:49,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 03:30:49" (1/1) ... [2018-09-15 15:30:49,856 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-15 15:30:50,938 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:30:50,963 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-15 15:30:51,435 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-15 15:30:51,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51 WrapperNode [2018-09-15 15:30:51,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-15 15:30:51,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-15 15:30:51,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-15 15:30:51,600 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-15 15:30:51,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:51,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:51,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-15 15:30:51,842 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-15 15:30:51,842 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-15 15:30:51,842 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-15 15:30:52,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (1/1) ... [2018-09-15 15:30:52,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-15 15:30:52,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-15 15:30:52,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-15 15:30:52,483 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-15 15:30:52,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (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 15:30:52,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-15 15:30:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-15 15:30:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-15 15:30:52,567 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-15 15:30:52,567 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-15 15:30:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-15 15:30:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-15 15:30:52,568 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-15 15:30:52,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-15 15:30:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-15 15:30:52,569 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-15 15:30:52,569 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-15 15:31:00,456 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-15 15:31:00,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:31:00 BoogieIcfgContainer [2018-09-15 15:31:00,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-15 15:31:00,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-15 15:31:00,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-15 15:31:00,462 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-15 15:31:00,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 03:30:49" (1/3) ... [2018-09-15 15:31:00,463 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4083707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:31:00, skipping insertion in model container [2018-09-15 15:31:00,463 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 03:30:51" (2/3) ... [2018-09-15 15:31:00,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4083707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 03:31:00, skipping insertion in model container [2018-09-15 15:31:00,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 03:31:00" (3/3) ... [2018-09-15 15:31:00,466 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label13_true-unreach-call.c [2018-09-15 15:31:00,476 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-15 15:31:00,487 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-15 15:31:00,550 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-15 15:31:00,551 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-15 15:31:00,551 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-15 15:31:00,551 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-15 15:31:00,552 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-15 15:31:00,552 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-15 15:31:00,552 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-15 15:31:00,552 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-15 15:31:00,552 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-15 15:31:00,591 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-15 15:31:00,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-15 15:31:00,601 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:31:00,602 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] [2018-09-15 15:31:00,603 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:31:00,609 INFO L82 PathProgramCache]: Analyzing trace with hash -2080894020, now seen corresponding path program 1 times [2018-09-15 15:31:00,612 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:31:00,613 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 53 with the following transitions: [2018-09-15 15:31:00,616 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1939], [1941], [3000], [3004], [3010], [3014], [3025], [3026], [3027], [3029] [2018-09-15 15:31:00,658 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:31:00,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-15 15:31:01,421 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-15 15:31:01,423 INFO L272 AbstractInterpreter]: Visited 51 different actions 51 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-15 15:31:01,467 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-15 15:31:02,128 INFO L232 lantSequenceWeakener]: Weakened 49 states. On average, predicates are now at 80.11% of their original sizes. [2018-09-15 15:31:02,129 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-15 15:31:02,397 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-15 15:31:02,399 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-15 15:31:02,400 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-15 15:31:02,400 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-15 15:31:02,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-15 15:31:02,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-15 15:31:02,414 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-15 15:31:02,417 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 6 states. [2018-09-15 15:31:10,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-15 15:31:10,522 INFO L93 Difference]: Finished difference Result 2253 states and 4323 transitions. [2018-09-15 15:31:10,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-15 15:31:10,524 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-09-15 15:31:10,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-15 15:31:10,561 INFO L225 Difference]: With dead ends: 2253 [2018-09-15 15:31:10,561 INFO L226 Difference]: Without dead ends: 1476 [2018-09-15 15:31:10,574 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 51 GetRequests, 47 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 15:31:10,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2018-09-15 15:31:10,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1474. [2018-09-15 15:31:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-15 15:31:10,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2167 transitions. [2018-09-15 15:31:10,729 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2167 transitions. Word has length 52 [2018-09-15 15:31:10,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-15 15:31:10,730 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2167 transitions. [2018-09-15 15:31:10,730 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-15 15:31:10,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2167 transitions. [2018-09-15 15:31:10,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-09-15 15:31:10,742 INFO L368 BasicCegarLoop]: Found error trace [2018-09-15 15:31:10,743 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:31:10,743 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-15 15:31:10,744 INFO L82 PathProgramCache]: Analyzing trace with hash 630430911, now seen corresponding path program 1 times [2018-09-15 15:31:10,744 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-15 15:31:10,745 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-09-15 15:31:10,745 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1939], [1941], [1944], [1952], [1960], [1968], [1976], [1984], [1992], [2000], [2008], [2016], [2024], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-09-15 15:31:10,756 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-15 15:31:10,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)