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/Problem02_label56_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 04:01:50,887 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 04:01:50,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 04:01:50,905 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 04:01:50,905 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 04:01:50,906 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 04:01:50,908 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 04:01:50,910 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 04:01:50,912 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 04:01:50,912 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 04:01:50,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 04:01:50,914 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 04:01:50,915 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 04:01:50,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 04:01:50,917 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 04:01:50,918 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 04:01:50,919 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 04:01:50,921 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 04:01:50,923 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 04:01:50,925 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 04:01:50,926 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 04:01:50,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 04:01:50,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-08-08 04:01:50,941 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 [2018-08-08 04:01:50,964 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 04:01:50,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 04:01:50,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 04:01:50,966 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 04:01:50,966 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 04:01:50,966 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 04:01:50,967 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 04:01:50,967 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 04:01:50,967 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 04:01:50,970 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 04:01:50,970 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 04:01:50,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 04:01:50,972 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 04:01:50,972 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 04:01:50,972 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 04:01:50,972 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 04:01:50,973 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 04:01:50,973 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 04:01:50,973 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 04:01:50,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 04:01:50,975 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 04:01:50,976 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 04:01:50,976 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 04:01:50,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 04:01:50,976 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 04:01:50,977 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 04:01:50,977 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 04:01:50,977 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 04:01:50,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 04:01:50,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 04:01:50,978 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 04:01:50,978 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 04:01:50,978 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 04:01:51,053 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 04:01:51,074 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 04:01:51,083 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 04:01:51,085 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 04:01:51,085 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 04:01:51,087 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c [2018-08-08 04:01:51,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840b74048/304f334ca66a498c9258553ad3de5492/FLAGe3286e862 [2018-08-08 04:01:51,836 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 04:01:51,840 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56_true-unreach-call_false-termination.c [2018-08-08 04:01:51,862 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840b74048/304f334ca66a498c9258553ad3de5492/FLAGe3286e862 [2018-08-08 04:01:51,880 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/840b74048/304f334ca66a498c9258553ad3de5492 [2018-08-08 04:01:51,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 04:01:51,897 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 04:01:51,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 04:01:51,899 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 04:01:51,907 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 04:01:51,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 04:01:51" (1/1) ... [2018-08-08 04:01:51,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c6cb5d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:51, skipping insertion in model container [2018-08-08 04:01:51,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 04:01:51" (1/1) ... [2018-08-08 04:01:52,123 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 04:01:52,387 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 04:01:52,407 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 04:01:52,633 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 04:01:52,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52 WrapperNode [2018-08-08 04:01:52,697 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 04:01:52,698 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 04:01:52,698 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 04:01:52,698 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 04:01:52,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:52,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:52,823 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 04:01:52,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 04:01:52,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 04:01:52,826 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 04:01:52,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:52,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:52,858 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:52,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:52,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:53,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:53,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (1/1) ... [2018-08-08 04:01:53,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 04:01:53,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 04:01:53,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 04:01:53,129 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 04:01:53,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (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 [2018-08-08 04:01:53,233 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-08-08 04:01:53,234 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_output [2018-08-08 04:01:53,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 04:01:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 04:01:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 04:01:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 04:01:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 04:01:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 04:01:56,866 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 04:01:56,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:01:56 BoogieIcfgContainer [2018-08-08 04:01:56,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 04:01:56,869 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 04:01:56,869 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 04:01:56,874 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 04:01:56,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 04:01:51" (1/3) ... [2018-08-08 04:01:56,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258dd3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:01:56, skipping insertion in model container [2018-08-08 04:01:56,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:01:52" (2/3) ... [2018-08-08 04:01:56,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258dd3e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:01:56, skipping insertion in model container [2018-08-08 04:01:56,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:01:56" (3/3) ... [2018-08-08 04:01:56,879 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label56_true-unreach-call_false-termination.c [2018-08-08 04:01:56,894 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 04:01:56,918 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 04:01:57,002 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 04:01:57,003 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 04:01:57,003 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 04:01:57,003 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 04:01:57,003 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 04:01:57,004 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 04:01:57,004 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 04:01:57,004 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 04:01:57,004 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 04:01:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states. [2018-08-08 04:01:57,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-08-08 04:01:57,060 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 04:01:57,062 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 04:01:57,064 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 04:01:57,069 INFO L82 PathProgramCache]: Analyzing trace with hash 148867168, now seen corresponding path program 1 times [2018-08-08 04:01:57,072 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 04:01:57,073 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 131 with the following transitions: [2018-08-08 04:01:57,077 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [24], [28], [32], [36], [40], [51], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [197], [208], [212], [216], [220], [231], [235], [239], [243], [247], [251], [255], [266], [270], [281], [285], [296], [307], [311], [315], [319], [323], [327], [331], [342], [346], [350], [354], [358], [362], [366], [370], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [709], [711], [862], [863], [867], [871], [877], [881], [888], [889], [890], [892] [2018-08-08 04:01:57,183 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 04:01:57,184 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 04:02:20,231 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 04:02:20,233 INFO L272 AbstractInterpreter]: Visited 129 different actions 129 times. Never merged. Never widened. Never found a fixpoint. Largest state had 37 variables. [2018-08-08 04:02:20,252 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 04:02:24,612 INFO L232 lantSequenceWeakener]: Weakened 128 states. On average, predicates are now at 81.31% of their original sizes. [2018-08-08 04:02:24,612 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 04:02:25,994 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 04:02:25,996 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 04:02:25,996 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 04:02:25,997 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 04:02:26,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 04:02:26,015 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 04:02:26,016 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2018-08-08 04:02:26,020 INFO L87 Difference]: Start difference. First operand 237 states. Second operand 10 states. [2018-08-08 04:02:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 04:02:33,655 INFO L93 Difference]: Finished difference Result 622 states and 1061 transitions. [2018-08-08 04:02:33,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-08-08 04:02:33,656 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 130 [2018-08-08 04:02:33,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 04:02:33,674 INFO L225 Difference]: With dead ends: 622 [2018-08-08 04:02:33,675 INFO L226 Difference]: Without dead ends: 383 [2018-08-08 04:02:33,684 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 133 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2018-08-08 04:02:33,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2018-08-08 04:02:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 380. [2018-08-08 04:02:33,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 380 states. [2018-08-08 04:02:33,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 531 transitions. [2018-08-08 04:02:33,772 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 531 transitions. Word has length 130 [2018-08-08 04:02:33,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 04:02:33,774 INFO L480 AbstractCegarLoop]: Abstraction has 380 states and 531 transitions. [2018-08-08 04:02:33,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 04:02:33,774 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 531 transitions. [2018-08-08 04:02:33,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-08-08 04:02:33,783 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 04:02:33,784 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 04:02:33,785 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 04:02:33,786 INFO L82 PathProgramCache]: Analyzing trace with hash 11919745, now seen corresponding path program 1 times [2018-08-08 04:02:33,786 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 04:02:33,786 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 141 with the following transitions: [2018-08-08 04:02:33,787 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [8], [12], [16], [20], [24], [28], [32], [36], [40], [51], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [197], [208], [212], [216], [220], [231], [235], [239], [243], [247], [251], [255], [266], [270], [281], [285], [296], [307], [311], [315], [319], [323], [327], [331], [342], [346], [350], [354], [358], [362], [366], [370], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [709], [711], [861], [862], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-08-08 04:02:33,795 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 04:02:33,795 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 04:04:10,957 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 04:04:10,958 INFO L272 AbstractInterpreter]: Visited 133 different actions 260 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-08-08 04:04:10,967 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 04:04:22,597 INFO L232 lantSequenceWeakener]: Weakened 138 states. On average, predicates are now at 81.31% of their original sizes. [2018-08-08 04:04:22,597 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 04:04:26,771 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 04:04:26,772 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 04:04:26,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 04:04:26,772 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 04:04:26,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 04:04:26,775 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 04:04:26,775 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-08-08 04:04:26,776 INFO L87 Difference]: Start difference. First operand 380 states and 531 transitions. Second operand 15 states. [2018-08-08 04:04:39,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 04:04:39,244 INFO L93 Difference]: Finished difference Result 907 states and 1349 transitions. [2018-08-08 04:04:39,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 04:04:39,245 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 140 [2018-08-08 04:04:39,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 04:04:39,251 INFO L225 Difference]: With dead ends: 907 [2018-08-08 04:04:39,251 INFO L226 Difference]: Without dead ends: 533 [2018-08-08 04:04:39,256 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 83 SyntacticMatches, 43 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=221, Invalid=709, Unknown=0, NotChecked=0, Total=930 [2018-08-08 04:04:39,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2018-08-08 04:04:39,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 527. [2018-08-08 04:04:39,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2018-08-08 04:04:39,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 690 transitions. [2018-08-08 04:04:39,296 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 690 transitions. Word has length 140 [2018-08-08 04:04:39,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 04:04:39,297 INFO L480 AbstractCegarLoop]: Abstraction has 527 states and 690 transitions. [2018-08-08 04:04:39,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 04:04:39,297 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 690 transitions. [2018-08-08 04:04:39,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-08-08 04:04:39,301 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 04:04:39,302 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 04:04:39,302 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_false_termination_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 04:04:39,302 INFO L82 PathProgramCache]: Analyzing trace with hash 500697593, now seen corresponding path program 1 times [2018-08-08 04:04:39,303 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 04:04:39,303 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 145 with the following transitions: [2018-08-08 04:04:39,303 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [12], [16], [20], [23], [24], [28], [32], [36], [40], [51], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [197], [208], [212], [216], [220], [231], [235], [239], [243], [247], [251], [255], [266], [270], [281], [285], [296], [307], [311], [315], [319], [323], [327], [331], [342], [346], [350], [354], [358], [362], [366], [370], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [529], [537], [545], [553], [561], [569], [577], [585], [593], [601], [609], [617], [625], [633], [641], [649], [657], [665], [673], [681], [689], [697], [705], [709], [711], [861], [862], [863], [867], [871], [877], [881], [883], [888], [889], [890], [892], [893] [2018-08-08 04:04:39,309 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 04:04:39,310 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 04:06:12,148 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 04:06:12,149 INFO L272 AbstractInterpreter]: Visited 133 different actions 260 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 38 variables. [2018-08-08 04:06:12,158 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown