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/Problem14_label50_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 06:17:16,828 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 06:17:16,830 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 06:17:16,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 06:17:16,843 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 06:17:16,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 06:17:16,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 06:17:16,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 06:17:16,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 06:17:16,849 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 06:17:16,850 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 06:17:16,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 06:17:16,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 06:17:16,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 06:17:16,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 06:17:16,854 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 06:17:16,855 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 06:17:16,857 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 06:17:16,859 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 06:17:16,860 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 06:17:16,861 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 06:17:16,863 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 06:17:16,865 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 06:17:16,865 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 06:17:16,865 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 06:17:16,866 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 06:17:16,867 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 06:17:16,868 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 06:17:16,869 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 06:17:16,870 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 06:17:16,870 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 06:17:16,871 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 06:17:16,871 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 06:17:16,871 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 06:17:16,872 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 06:17:16,873 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 06:17:16,873 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 06:17:16,895 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 06:17:16,896 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 06:17:16,897 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 06:17:16,897 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 06:17:16,897 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 06:17:16,897 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 06:17:16,898 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 06:17:16,898 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 06:17:16,898 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 06:17:16,898 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 06:17:16,899 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 06:17:16,899 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 06:17:16,900 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 06:17:16,901 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 06:17:16,901 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 06:17:16,901 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 06:17:16,901 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 06:17:16,901 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 06:17:16,902 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 06:17:16,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 06:17:16,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 06:17:16,902 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 06:17:16,904 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 06:17:16,904 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 06:17:16,904 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 06:17:16,904 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 06:17:16,904 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 06:17:16,905 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 06:17:16,905 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 06:17:16,905 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 06:17:16,905 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 06:17:16,906 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 06:17:16,906 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 06:17:16,969 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 06:17:16,982 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 06:17:16,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 06:17:16,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 06:17:16,989 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 06:17:16,990 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-08-08 06:17:17,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6d69d9/afac4882b1ce428f96c3d6e73ce4abf7/FLAGaa600bfeb [2018-08-08 06:17:17,745 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 06:17:17,746 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label50_true-unreach-call_false-termination.c [2018-08-08 06:17:17,777 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6d69d9/afac4882b1ce428f96c3d6e73ce4abf7/FLAGaa600bfeb [2018-08-08 06:17:17,792 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dec6d69d9/afac4882b1ce428f96c3d6e73ce4abf7 [2018-08-08 06:17:17,803 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 06:17:17,806 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 06:17:17,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 06:17:17,807 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 06:17:17,814 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 06:17:17,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 06:17:17" (1/1) ... [2018-08-08 06:17:17,818 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c9fdb97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:17, skipping insertion in model container [2018-08-08 06:17:17,818 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 06:17:17" (1/1) ... [2018-08-08 06:17:18,033 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 06:17:18,356 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 06:17:18,374 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 06:17:18,580 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 06:17:18,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18 WrapperNode [2018-08-08 06:17:18,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 06:17:18,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 06:17:18,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 06:17:18,642 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 06:17:18,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:18,688 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:18,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 06:17:18,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 06:17:18,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 06:17:18,785 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 06:17:18,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:18,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:18,802 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:18,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:19,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:19,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:19,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (1/1) ... [2018-08-08 06:17:19,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 06:17:19,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 06:17:19,097 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 06:17:19,097 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 06:17:19,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (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 06:17:19,162 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 06:17:19,163 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 06:17:19,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 06:17:19,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 06:17:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 06:17:19,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 06:17:19,164 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 06:17:19,164 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 06:17:23,454 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 06:17:23,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 06:17:23 BoogieIcfgContainer [2018-08-08 06:17:23,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 06:17:23,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 06:17:23,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 06:17:23,460 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 06:17:23,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 06:17:17" (1/3) ... [2018-08-08 06:17:23,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 06:17:23, skipping insertion in model container [2018-08-08 06:17:23,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 06:17:18" (2/3) ... [2018-08-08 06:17:23,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5310835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 06:17:23, skipping insertion in model container [2018-08-08 06:17:23,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 06:17:23" (3/3) ... [2018-08-08 06:17:23,464 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label50_true-unreach-call_false-termination.c [2018-08-08 06:17:23,474 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 06:17:23,484 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 06:17:23,541 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 06:17:23,542 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 06:17:23,542 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 06:17:23,542 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 06:17:23,542 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 06:17:23,542 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 06:17:23,543 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 06:17:23,543 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 06:17:23,543 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 06:17:23,572 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-08-08 06:17:23,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-08-08 06:17:23,581 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:17:23,582 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] [2018-08-08 06:17:23,584 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 06:17:23,589 INFO L82 PathProgramCache]: Analyzing trace with hash 508778684, now seen corresponding path program 1 times [2018-08-08 06:17:23,592 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:17:23,593 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 45 with the following transitions: [2018-08-08 06:17:23,596 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [251], [253], [947], [948], [952], [956], [962], [966], [973], [974], [975], [977] [2018-08-08 06:17:23,659 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:17:23,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:17:24,888 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:17:24,890 INFO L272 AbstractInterpreter]: Visited 43 different actions 43 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 06:17:24,906 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:17:25,730 INFO L232 lantSequenceWeakener]: Weakened 42 states. On average, predicates are now at 80.26% of their original sizes. [2018-08-08 06:17:25,730 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:17:26,013 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:17:26,015 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:17:26,016 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 06:17:26,016 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:17:26,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 06:17:26,029 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 06:17:26,030 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 06:17:26,033 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 6 states. [2018-08-08 06:17:31,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:17:31,630 INFO L93 Difference]: Finished difference Result 693 states and 1229 transitions. [2018-08-08 06:17:31,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 06:17:31,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2018-08-08 06:17:31,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:17:31,651 INFO L225 Difference]: With dead ends: 693 [2018-08-08 06:17:31,651 INFO L226 Difference]: Without dead ends: 436 [2018-08-08 06:17:31,658 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 06:17:31,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states. [2018-08-08 06:17:31,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 434. [2018-08-08 06:17:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2018-08-08 06:17:31,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 615 transitions. [2018-08-08 06:17:31,747 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 615 transitions. Word has length 44 [2018-08-08 06:17:31,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:17:31,748 INFO L480 AbstractCegarLoop]: Abstraction has 434 states and 615 transitions. [2018-08-08 06:17:31,751 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 06:17:31,751 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 615 transitions. [2018-08-08 06:17:31,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2018-08-08 06:17:31,762 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:17:31,762 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:17:31,763 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 06:17:31,763 INFO L82 PathProgramCache]: Analyzing trace with hash -182539479, now seen corresponding path program 1 times [2018-08-08 06:17:31,763 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:17:31,764 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 130 with the following transitions: [2018-08-08 06:17:31,764 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [251], [253], [256], [264], [272], [280], [288], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:17:31,779 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:17:31,779 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:17:40,972 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:17:40,972 INFO L272 AbstractInterpreter]: Visited 92 different actions 177 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 06:17:40,989 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:17:44,962 INFO L232 lantSequenceWeakener]: Weakened 127 states. On average, predicates are now at 78.36% of their original sizes. [2018-08-08 06:17:44,962 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:17:46,589 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:17:46,590 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:17:46,590 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:17:46,590 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:17:46,592 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:17:46,592 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:17:46,593 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:17:46,593 INFO L87 Difference]: Start difference. First operand 434 states and 615 transitions. Second operand 11 states. [2018-08-08 06:18:02,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:18:02,370 INFO L93 Difference]: Finished difference Result 1051 states and 1763 transitions. [2018-08-08 06:18:02,370 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-08-08 06:18:02,371 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 129 [2018-08-08 06:18:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:18:02,378 INFO L225 Difference]: With dead ends: 1051 [2018-08-08 06:18:02,378 INFO L226 Difference]: Without dead ends: 806 [2018-08-08 06:18:02,381 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 135 GetRequests, 87 SyntacticMatches, 32 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-08-08 06:18:02,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 806 states. [2018-08-08 06:18:02,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 806 to 803. [2018-08-08 06:18:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 803 states. [2018-08-08 06:18:02,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 1002 transitions. [2018-08-08 06:18:02,450 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 1002 transitions. Word has length 129 [2018-08-08 06:18:02,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:18:02,451 INFO L480 AbstractCegarLoop]: Abstraction has 803 states and 1002 transitions. [2018-08-08 06:18:02,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:18:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 1002 transitions. [2018-08-08 06:18:02,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-08-08 06:18:02,463 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:18:02,464 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:18:02,465 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 06:18:02,465 INFO L82 PathProgramCache]: Analyzing trace with hash 509188821, now seen corresponding path program 1 times [2018-08-08 06:18:02,465 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:18:02,465 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-08-08 06:18:02,466 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [251], [253], [256], [264], [272], [280], [288], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:18:02,478 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:18:02,478 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:18:22,054 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:18:22,054 INFO L272 AbstractInterpreter]: Visited 118 different actions 230 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-08-08 06:18:22,064 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:18:29,958 INFO L232 lantSequenceWeakener]: Weakened 153 states. On average, predicates are now at 78.18% of their original sizes. [2018-08-08 06:18:29,958 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:18:31,090 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:18:31,090 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:18:31,091 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:18:31,091 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:18:31,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:18:31,092 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:18:31,093 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:18:31,093 INFO L87 Difference]: Start difference. First operand 803 states and 1002 transitions. Second operand 11 states. [2018-08-08 06:18:42,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:18:42,842 INFO L93 Difference]: Finished difference Result 1236 states and 1786 transitions. [2018-08-08 06:18:42,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-08 06:18:42,850 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 155 [2018-08-08 06:18:42,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:18:42,856 INFO L225 Difference]: With dead ends: 1236 [2018-08-08 06:18:42,856 INFO L226 Difference]: Without dead ends: 991 [2018-08-08 06:18:42,858 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 162 GetRequests, 113 SyntacticMatches, 32 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 272 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2018-08-08 06:18:42,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2018-08-08 06:18:42,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 988. [2018-08-08 06:18:42,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 988 states. [2018-08-08 06:18:42,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 988 states to 988 states and 1200 transitions. [2018-08-08 06:18:42,902 INFO L78 Accepts]: Start accepts. Automaton has 988 states and 1200 transitions. Word has length 155 [2018-08-08 06:18:42,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:18:42,903 INFO L480 AbstractCegarLoop]: Abstraction has 988 states and 1200 transitions. [2018-08-08 06:18:42,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:18:42,903 INFO L276 IsEmpty]: Start isEmpty. Operand 988 states and 1200 transitions. [2018-08-08 06:18:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-08-08 06:18:42,908 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:18:42,909 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:18:42,909 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__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 06:18:42,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1664754488, now seen corresponding path program 1 times [2018-08-08 06:18:42,910 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:18:42,910 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 241 with the following transitions: [2018-08-08 06:18:42,910 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [251], [253], [256], [264], [272], [280], [288], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [552], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:18:42,914 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:18:42,914 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:18:59,240 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:18:59,240 INFO L272 AbstractInterpreter]: Visited 119 different actions 352 times. Merged at 7 different actions 17 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:18:59,267 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:19:02,569 INFO L232 lantSequenceWeakener]: Weakened 238 states. On average, predicates are now at 77.88% of their original sizes. [2018-08-08 06:19:02,569 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:19:03,261 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:19:03,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:19:03,262 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-08-08 06:19:03,262 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:19:03,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-08-08 06:19:03,263 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-08-08 06:19:03,263 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-08-08 06:19:03,263 INFO L87 Difference]: Start difference. First operand 988 states and 1200 transitions. Second operand 15 states. [2018-08-08 06:19:20,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:19:20,532 INFO L93 Difference]: Finished difference Result 1967 states and 3058 transitions. [2018-08-08 06:19:20,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-08-08 06:19:20,533 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 240 [2018-08-08 06:19:20,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:19:20,556 INFO L225 Difference]: With dead ends: 1967 [2018-08-08 06:19:20,556 INFO L226 Difference]: Without dead ends: 1722 [2018-08-08 06:19:20,559 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 255 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=208, Invalid=722, Unknown=0, NotChecked=0, Total=930 [2018-08-08 06:19:20,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2018-08-08 06:19:20,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1422. [2018-08-08 06:19:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1422 states. [2018-08-08 06:19:20,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 1686 transitions. [2018-08-08 06:19:20,633 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 1686 transitions. Word has length 240 [2018-08-08 06:19:20,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:19:20,634 INFO L480 AbstractCegarLoop]: Abstraction has 1422 states and 1686 transitions. [2018-08-08 06:19:20,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-08-08 06:19:20,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 1686 transitions. [2018-08-08 06:19:20,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-08-08 06:19:20,640 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:19:20,641 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 06:19:20,641 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__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 06:19:20,641 INFO L82 PathProgramCache]: Analyzing trace with hash 672820329, now seen corresponding path program 1 times [2018-08-08 06:19:20,642 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:19:20,642 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 266 with the following transitions: [2018-08-08 06:19:20,642 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [251], [253], [256], [264], [272], [280], [288], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:19:20,660 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:19:20,660 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:19:42,450 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 06:19:59,078 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:19:59,078 INFO L272 AbstractInterpreter]: Visited 119 different actions 465 times. Merged at 7 different actions 22 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:19:59,110 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 06:20:03,218 INFO L232 lantSequenceWeakener]: Weakened 263 states. On average, predicates are now at 77.84% of their original sizes. [2018-08-08 06:20:03,218 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:20:06,882 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 06:20:06,882 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 06:20:06,882 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 06:20:06,883 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 06:20:06,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 06:20:06,883 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 06:20:06,883 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2018-08-08 06:20:06,884 INFO L87 Difference]: Start difference. First operand 1422 states and 1686 transitions. Second operand 11 states. [2018-08-08 06:20:19,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 06:20:19,266 INFO L93 Difference]: Finished difference Result 1861 states and 2476 transitions. [2018-08-08 06:20:19,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-08-08 06:20:19,267 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 265 [2018-08-08 06:20:19,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 06:20:19,276 INFO L225 Difference]: With dead ends: 1861 [2018-08-08 06:20:19,277 INFO L226 Difference]: Without dead ends: 1616 [2018-08-08 06:20:19,278 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 273 GetRequests, 223 SyntacticMatches, 32 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 281 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=90, Invalid=290, Unknown=0, NotChecked=0, Total=380 [2018-08-08 06:20:19,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2018-08-08 06:20:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1609. [2018-08-08 06:20:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1609 states. [2018-08-08 06:20:19,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 1904 transitions. [2018-08-08 06:20:19,331 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 1904 transitions. Word has length 265 [2018-08-08 06:20:19,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 06:20:19,332 INFO L480 AbstractCegarLoop]: Abstraction has 1609 states and 1904 transitions. [2018-08-08 06:20:19,332 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 06:20:19,332 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 1904 transitions. [2018-08-08 06:20:19,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2018-08-08 06:20:19,340 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 06:20:19,340 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-08 06:20:19,341 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__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 06:20:19,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1593531709, now seen corresponding path program 1 times [2018-08-08 06:20:19,341 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 06:20:19,341 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 344 with the following transitions: [2018-08-08 06:20:19,342 INFO L202 CegarAbsIntRunner]: [0], [7], [15], [23], [31], [39], [47], [55], [63], [71], [79], [87], [95], [103], [111], [119], [127], [135], [143], [151], [159], [167], [175], [183], [191], [199], [207], [215], [223], [231], [239], [247], [251], [253], [256], [264], [272], [280], [288], [296], [304], [312], [320], [328], [336], [344], [352], [360], [368], [376], [384], [392], [400], [408], [416], [424], [432], [440], [448], [456], [464], [472], [480], [488], [493], [497], [501], [505], [509], [513], [517], [521], [524], [525], [529], [533], [537], [541], [545], [549], [553], [557], [561], [565], [569], [573], [577], [581], [585], [589], [593], [597], [601], [605], [609], [613], [617], [621], [625], [629], [633], [637], [641], [645], [649], [652], [653], [656], [946], [947], [948], [952], [956], [962], [966], [968], [973], [974], [975], [977], [978] [2018-08-08 06:20:19,346 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-08-08 06:20:19,346 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 06:20:40,809 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-08-08 06:21:01,826 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 06:21:01,827 INFO L272 AbstractInterpreter]: Visited 120 different actions 710 times. Merged at 8 different actions 45 times. Widened at 1 different actions 1 times. Found 10 fixpoints after 2 different actions. Largest state had 24 variables. [2018-08-08 06:21:01,870 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates Received shutdown request... [2018-08-08 06:21:04,549 INFO L232 lantSequenceWeakener]: Weakened 341 states. On average, predicates are now at 77.72% of their original sizes. [2018-08-08 06:21:04,549 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 06:21:04,602 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-08 06:21:04,607 WARN L202 ceAbstractionStarter]: Timeout [2018-08-08 06:21:04,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 06:21:04 BoogieIcfgContainer [2018-08-08 06:21:04,608 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 06:21:04,608 INFO L168 Benchmark]: Toolchain (without parser) took 226804.38 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -622.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-08-08 06:21:04,610 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 06:21:04,611 INFO L168 Benchmark]: CACSL2BoogieTranslator took 834.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-08-08 06:21:04,612 INFO L168 Benchmark]: Boogie Procedure Inliner took 142.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-08 06:21:04,612 INFO L168 Benchmark]: Boogie Preprocessor took 311.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -881.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. [2018-08-08 06:21:04,613 INFO L168 Benchmark]: RCFGBuilder took 4358.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 138.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 7.1 GB. [2018-08-08 06:21:04,614 INFO L168 Benchmark]: TraceAbstraction took 221151.85 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 56.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-08-08 06:21:04,619 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 834.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 142.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 311.23 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 773.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -881.0 MB). Peak memory consumption was 34.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4358.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 138.8 MB). Peak memory consumption was 138.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221151.85 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 56.1 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 115]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 115). Cancelled while BasicCegarLoop was analyzing trace of length 344 with TraceHistMax 4, while AbsIntCurrentIteration was generating AI predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 3 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. TIMEOUT Result, 221.0s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 62.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1204 SDtfs, 5203 SDslu, 2001 SDs, 0 SdLazy, 12745 SolverSat, 1630 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 56.4s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 868 GetRequests, 688 SyntacticMatches, 96 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 9.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1609occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 127.4s AbstIntTime, 6 AbstIntIterations, 6 AbstIntStrong, 0.9946006891659063 AbsIntWeakeningRatio, 0.11794871794871795 AbsIntAvgWeakeningVarsNumRemoved, 484.85982905982905 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 315 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label50_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_06-21-04-632.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label50_true-unreach-call_false-termination.c_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_06-21-04-632.csv Completed graceful shutdown