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_INTCON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 16:55:02,727 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 16:55:02,729 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 16:55:02,741 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 16:55:02,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 16:55:02,742 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 16:55:02,743 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 16:55:02,745 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 16:55:02,747 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 16:55:02,748 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 16:55:02,748 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 16:55:02,749 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 16:55:02,750 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 16:55:02,751 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 16:55:02,752 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 16:55:02,752 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 16:55:02,753 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 16:55:02,755 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 16:55:02,757 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 16:55:02,759 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 16:55:02,760 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 16:55:02,761 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 16:55:02,764 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 16:55:02,764 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 16:55:02,764 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 16:55:02,765 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 16:55:02,766 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 16:55:02,767 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 16:55:02,768 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 16:55:02,769 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 16:55:02,769 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 16:55:02,770 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 16:55:02,770 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 16:55:02,771 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 16:55:02,772 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 16:55:02,774 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 16:55:02,774 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INTCON-OldIcfg.epf [2018-08-08 16:55:02,804 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 16:55:02,804 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 16:55:02,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 16:55:02,808 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 16:55:02,809 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 16:55:02,809 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 16:55:02,809 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 16:55:02,809 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 16:55:02,809 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 16:55:02,810 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 16:55:02,810 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 16:55:02,813 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 16:55:02,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 16:55:02,814 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 16:55:02,814 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 16:55:02,814 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 16:55:02,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 16:55:02,815 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 16:55:02,815 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 16:55:02,815 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 16:55:02,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 16:55:02,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 16:55:02,817 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 16:55:02,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 16:55:02,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 16:55:02,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 16:55:02,818 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 16:55:02,818 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 16:55:02,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 16:55:02,819 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 16:55:02,819 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 16:55:02,819 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 16:55:02,819 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 16:55:02,877 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 16:55:02,889 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 16:55:02,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 16:55:02,896 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 16:55:02,896 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 16:55:02,897 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label17_true-unreach-call.c [2018-08-08 16:55:03,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aab047a0/3895610d25724a3c9fb725ebe36c8b13/FLAGeaa5f6f21 [2018-08-08 16:55:03,631 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 16:55:03,632 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label17_true-unreach-call.c [2018-08-08 16:55:03,655 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aab047a0/3895610d25724a3c9fb725ebe36c8b13/FLAGeaa5f6f21 [2018-08-08 16:55:03,675 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7aab047a0/3895610d25724a3c9fb725ebe36c8b13 [2018-08-08 16:55:03,689 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 16:55:03,691 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 16:55:03,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 16:55:03,696 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 16:55:03,705 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 16:55:03,706 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 04:55:03" (1/1) ... [2018-08-08 16:55:03,709 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c36b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:03, skipping insertion in model container [2018-08-08 16:55:03,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 04:55:03" (1/1) ... [2018-08-08 16:55:03,995 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 16:55:04,649 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 16:55:04,666 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 16:55:04,973 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 16:55:05,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05 WrapperNode [2018-08-08 16:55:05,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 16:55:05,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 16:55:05,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 16:55:05,122 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 16:55:05,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:05,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:05,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 16:55:05,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 16:55:05,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 16:55:05,356 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 16:55:05,876 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:05,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:05,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:05,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:05,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:06,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:06,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (1/1) ... [2018-08-08 16:55:06,095 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 16:55:06,096 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 16:55:06,096 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 16:55:06,096 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 16:55:06,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (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 16:55:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 16:55:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 16:55:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 16:55:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-08 16:55:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 16:55:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 16:55:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 16:55:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 16:55:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-08 16:55:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-08 16:55:13,899 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 16:55:13,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:55:13 BoogieIcfgContainer [2018-08-08 16:55:13,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 16:55:13,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 16:55:13,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 16:55:13,904 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 16:55:13,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 04:55:03" (1/3) ... [2018-08-08 16:55:13,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b84f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:55:13, skipping insertion in model container [2018-08-08 16:55:13,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:55:05" (2/3) ... [2018-08-08 16:55:13,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66b84f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:55:13, skipping insertion in model container [2018-08-08 16:55:13,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:55:13" (3/3) ... [2018-08-08 16:55:13,909 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label17_true-unreach-call.c [2018-08-08 16:55:13,919 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 16:55:13,927 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 16:55:13,978 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 16:55:13,979 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 16:55:13,979 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 16:55:13,979 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 16:55:13,980 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 16:55:13,980 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 16:55:13,980 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 16:55:13,980 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 16:55:13,980 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 16:55:14,021 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-08-08 16:55:14,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-08-08 16:55:14,033 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 16:55:14,034 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] [2018-08-08 16:55:14,035 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 16:55:14,041 INFO L82 PathProgramCache]: Analyzing trace with hash -267868124, now seen corresponding path program 1 times [2018-08-08 16:55:14,044 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 16:55:14,045 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2018-08-08 16:55:14,048 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [1567], [1571], [1577], [1581], [1662], [1663], [1664], [1666] [2018-08-08 16:55:14,093 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 16:55:14,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 16:55:16,224 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 16:55:16,226 INFO L272 AbstractInterpreter]: Visited 69 different actions 69 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 16:55:16,275 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 16:55:17,068 INFO L232 lantSequenceWeakener]: Weakened 67 states. On average, predicates are now at 80.57% of their original sizes. [2018-08-08 16:55:17,068 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 16:55:17,278 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 16:55:17,283 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 16:55:17,283 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 16:55:17,283 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 16:55:17,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 16:55:17,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 16:55:17,298 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 16:55:17,301 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 6 states. [2018-08-08 16:55:24,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 16:55:24,834 INFO L93 Difference]: Finished difference Result 1184 states and 2139 transitions. [2018-08-08 16:55:24,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 16:55:24,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2018-08-08 16:55:24,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 16:55:24,860 INFO L225 Difference]: With dead ends: 1184 [2018-08-08 16:55:24,860 INFO L226 Difference]: Without dead ends: 744 [2018-08-08 16:55:24,869 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 69 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 16:55:24,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-08-08 16:55:24,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 742. [2018-08-08 16:55:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 742 states. [2018-08-08 16:55:24,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1072 transitions. [2018-08-08 16:55:24,987 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1072 transitions. Word has length 70 [2018-08-08 16:55:24,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 16:55:24,988 INFO L480 AbstractCegarLoop]: Abstraction has 742 states and 1072 transitions. [2018-08-08 16:55:24,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 16:55:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1072 transitions. [2018-08-08 16:55:24,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2018-08-08 16:55:24,998 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 16:55:24,998 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-08 16:55:24,999 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 16:55:24,999 INFO L82 PathProgramCache]: Analyzing trace with hash -2133733907, now seen corresponding path program 1 times [2018-08-08 16:55:24,999 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 16:55:25,000 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 167 with the following transitions: [2018-08-08 16:55:25,000 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [461], [463], [466], [474], [482], [490], [495], [499], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [569], [573], [577], [581], [585], [596], [600], [604], [608], [612], [616], [619], [1563], [1567], [1571], [1577], [1581], [1583], [1662], [1663], [1664], [1666], [1667] [2018-08-08 16:55:25,009 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 16:55:25,009 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)