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_OCT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 23:26:17,949 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 23:26:17,951 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 23:26:17,964 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 23:26:17,964 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 23:26:17,965 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 23:26:17,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 23:26:17,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 23:26:17,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 23:26:17,971 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 23:26:17,972 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 23:26:17,972 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 23:26:17,973 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 23:26:17,974 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 23:26:17,976 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 23:26:17,976 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 23:26:17,977 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 23:26:17,979 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 23:26:17,981 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 23:26:17,983 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 23:26:17,984 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 23:26:17,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 23:26:17,988 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 23:26:17,988 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 23:26:17,988 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 23:26:17,989 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 23:26:17,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 23:26:17,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 23:26:17,992 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 23:26:17,993 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 23:26:17,993 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 23:26:17,994 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 23:26:17,995 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 23:26:17,995 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 23:26:17,996 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 23:26:17,996 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 23:26:17,997 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf [2018-09-11 23:26:18,013 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 23:26:18,014 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 23:26:18,015 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 23:26:18,015 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 23:26:18,015 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 23:26:18,015 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 23:26:18,015 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 23:26:18,016 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 23:26:18,016 INFO L133 SettingsManager]: * Abstract domain=OctagonDomain [2018-09-11 23:26:18,016 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 23:26:18,016 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 23:26:18,016 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 23:26:18,017 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 23:26:18,017 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 23:26:18,018 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 23:26:18,018 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 23:26:18,018 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 23:26:18,018 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 23:26:18,018 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 23:26:18,018 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 23:26:18,019 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 23:26:18,019 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 23:26:18,019 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 23:26:18,019 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 23:26:18,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 23:26:18,020 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 23:26:18,020 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 23:26:18,020 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 23:26:18,020 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 23:26:18,020 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 23:26:18,021 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 23:26:18,021 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 23:26:18,021 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 23:26:18,021 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 23:26:18,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 23:26:18,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 23:26:18,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 23:26:18,087 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 23:26:18,087 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 23:26:18,088 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c [2018-09-11 23:26:18,436 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb619773/0b95258d51724061814da2f97ca40008/FLAGad8f60664 [2018-09-11 23:26:18,871 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 23:26:18,872 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label53_true-unreach-call.c [2018-09-11 23:26:18,903 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb619773/0b95258d51724061814da2f97ca40008/FLAGad8f60664 [2018-09-11 23:26:18,922 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fb619773/0b95258d51724061814da2f97ca40008 [2018-09-11 23:26:18,936 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 23:26:18,940 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 23:26:18,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 23:26:18,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 23:26:18,950 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 23:26:18,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:26:18" (1/1) ... [2018-09-11 23:26:18,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbc8a96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:18, skipping insertion in model container [2018-09-11 23:26:18,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 11:26:18" (1/1) ... [2018-09-11 23:26:19,295 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 23:26:20,134 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 23:26:20,157 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 23:26:20,723 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 23:26:20,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20 WrapperNode [2018-09-11 23:26:20,905 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 23:26:20,907 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 23:26:20,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 23:26:20,908 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 23:26:20,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:20,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,129 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 23:26:21,130 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 23:26:21,130 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 23:26:21,130 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 23:26:21,660 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,812 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,920 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... [2018-09-11 23:26:21,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 23:26:21,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 23:26:21,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 23:26:21,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 23:26:21,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 23:26:22,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 23:26:22,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 23:26:22,065 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 [2018-09-11 23:26:22,065 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 [2018-09-11 23:26:22,065 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_output3 [2018-09-11 23:26:22,065 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_output3 [2018-09-11 23:26:22,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 23:26:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 23:26:22,066 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 23:26:22,066 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 23:26:22,066 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 [2018-09-11 23:26:22,066 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 [2018-09-11 23:26:30,813 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 23:26:30,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:26:30 BoogieIcfgContainer [2018-09-11 23:26:30,815 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 23:26:30,816 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 23:26:30,816 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 23:26:30,820 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 23:26:30,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 11:26:18" (1/3) ... [2018-09-11 23:26:30,821 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d707e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:26:30, skipping insertion in model container [2018-09-11 23:26:30,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 11:26:20" (2/3) ... [2018-09-11 23:26:30,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d707e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 11:26:30, skipping insertion in model container [2018-09-11 23:26:30,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 11:26:30" (3/3) ... [2018-09-11 23:26:30,825 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label53_true-unreach-call.c [2018-09-11 23:26:30,836 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 23:26:30,849 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 23:26:30,922 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 23:26:30,923 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 23:26:30,923 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 23:26:30,923 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 23:26:30,923 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 23:26:30,924 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 23:26:30,924 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 23:26:30,924 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 23:26:30,924 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 23:26:30,979 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-11 23:26:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-11 23:26:30,986 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 23:26:30,987 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] [2018-09-11 23:26:30,988 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]=== [2018-09-11 23:26:30,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1034310412, now seen corresponding path program 1 times [2018-09-11 23:26:30,996 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 23:26:30,997 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 41 with the following transitions: [2018-09-11 23:26:31,000 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], [221], [223], [2116], [2120], [2126], [2130], [3023], [3024], [3025], [3027] [2018-09-11 23:26:31,065 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 23:26:31,066 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 23:26:32,981 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 23:26:32,983 INFO L272 AbstractInterpreter]: Visited 39 different actions 39 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-09-11 23:26:33,006 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 23:26:33,938 INFO L232 lantSequenceWeakener]: Weakened 38 states. On average, predicates are now at 80.09% of their original sizes. [2018-09-11 23:26:33,938 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 23:26:34,224 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 23:26:34,226 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 23:26:34,226 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-11 23:26:34,227 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 23:26:34,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-11 23:26:34,240 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-11 23:26:34,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 23:26:34,244 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 6 states. [2018-09-11 23:26:54,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 23:26:54,826 INFO L93 Difference]: Finished difference Result 2253 states and 4323 transitions. [2018-09-11 23:26:54,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-11 23:26:54,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-11 23:26:54,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 23:26:54,859 INFO L225 Difference]: With dead ends: 2253 [2018-09-11 23:26:54,859 INFO L226 Difference]: Without dead ends: 1476 [2018-09-11 23:26:54,867 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-11 23:26:54,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1476 states. [2018-09-11 23:26:54,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1476 to 1474. [2018-09-11 23:26:54,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-11 23:26:55,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2167 transitions. [2018-09-11 23:26:55,006 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2167 transitions. Word has length 40 [2018-09-11 23:26:55,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 23:26:55,007 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2167 transitions. [2018-09-11 23:26:55,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-11 23:26:55,007 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2167 transitions. [2018-09-11 23:26:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-11 23:26:55,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 23:26:55,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 23:26:55,017 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]=== [2018-09-11 23:26:55,017 INFO L82 PathProgramCache]: Analyzing trace with hash -857996871, now seen corresponding path program 1 times [2018-09-11 23:26:55,018 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 23:26:55,018 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 228 with the following transitions: [2018-09-11 23:26:55,019 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], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [962], [1374], [2116], [2120], [2126], [2130], [2132], [3023], [3024], [3025], [3027], [3028] [2018-09-11 23:26:55,031 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 23:26:55,031 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 23:27:36,182 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 23:27:36,182 INFO L272 AbstractInterpreter]: Visited 194 different actions 381 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-11 23:27:36,189 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 23:27:42,398 INFO L232 lantSequenceWeakener]: Weakened 225 states. On average, predicates are now at 77.79% of their original sizes. [2018-09-11 23:27:42,398 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 23:27:45,755 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 23:27:45,755 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 23:27:45,756 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-09-11 23:27:45,756 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 23:27:45,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-11 23:27:45,758 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-11 23:27:45,759 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2018-09-11 23:27:45,759 INFO L87 Difference]: Start difference. First operand 1474 states and 2167 transitions. Second operand 12 states. [2018-09-11 23:28:34,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 23:28:34,863 INFO L93 Difference]: Finished difference Result 3476 states and 6076 transitions. [2018-09-11 23:28:34,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-11 23:28:34,864 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2018-09-11 23:28:34,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 23:28:34,878 INFO L225 Difference]: With dead ends: 3476 [2018-09-11 23:28:34,879 INFO L226 Difference]: Without dead ends: 2711 [2018-09-11 23:28:34,882 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 235 GetRequests, 177 SyntacticMatches, 39 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=99, Invalid=321, Unknown=0, NotChecked=0, Total=420 [2018-09-11 23:28:34,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2018-09-11 23:28:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2229. [2018-09-11 23:28:34,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2229 states. [2018-09-11 23:28:34,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2229 states to 2229 states and 2941 transitions. [2018-09-11 23:28:34,951 INFO L78 Accepts]: Start accepts. Automaton has 2229 states and 2941 transitions. Word has length 227 [2018-09-11 23:28:34,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 23:28:34,952 INFO L480 AbstractCegarLoop]: Abstraction has 2229 states and 2941 transitions. [2018-09-11 23:28:34,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-11 23:28:34,953 INFO L276 IsEmpty]: Start isEmpty. Operand 2229 states and 2941 transitions. [2018-09-11 23:28:34,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-09-11 23:28:34,966 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 23:28:34,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 23:28:34,967 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 23:28:34,968 INFO L82 PathProgramCache]: Analyzing trace with hash -346498986, now seen corresponding path program 1 times [2018-09-11 23:28:34,968 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 23:28:34,968 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 569 with the following transitions: [2018-09-11 23:28:34,969 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], [221], [223], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [815], [819], [823], [827], [831], [835], [839], [843], [847], [851], [855], [859], [863], [867], [871], [875], [879], [883], [887], [891], [895], [899], [903], [907], [911], [915], [919], [923], [927], [931], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [995], [999], [1003], [1007], [1011], [1015], [1019], [1023], [1027], [1031], [1035], [1039], [1043], [1047], [1051], [1055], [1059], [1063], [1067], [1071], [1075], [1079], [1083], [1087], [1091], [1095], [1099], [1103], [1107], [1111], [1115], [1119], [1123], [1127], [1131], [1135], [1139], [1143], [1147], [1151], [1155], [1159], [1163], [1167], [1171], [1175], [1179], [1183], [1187], [1191], [1195], [1199], [1203], [1207], [1211], [1215], [1219], [1223], [1227], [1231], [1235], [1239], [1243], [1247], [1251], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1311], [1315], [1319], [1323], [1327], [1331], [1335], [1339], [1343], [1347], [1351], [1355], [1359], [1363], [1367], [1371], [1373], [1374], [1375], [1379], [1383], [1387], [1391], [1395], [1399], [1403], [1407], [1410], [2112], [2116], [2120], [2126], [2130], [2132], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2665], [2669], [2673], [2677], [2681], [2685], [2689], [2693], [2697], [2701], [2705], [2709], [2713], [2717], [2721], [2725], [2729], [2733], [2737], [2741], [2745], [2749], [2753], [2757], [2761], [2765], [2769], [2773], [2777], [2781], [2785], [2789], [2793], [2797], [2801], [2805], [2809], [2813], [2817], [2821], [2825], [2829], [2833], [2837], [2841], [2845], [2849], [2853], [2857], [2861], [2865], [2869], [2873], [2877], [2881], [2885], [2889], [2893], [2897], [2901], [2905], [2909], [2913], [2917], [2921], [2925], [2929], [2933], [2937], [2941], [2945], [2949], [2953], [2957], [2961], [2965], [2969], [2973], [2977], [2981], [2985], [2989], [2993], [2997], [3001], [3005], [3009], [3013], [3017], [3019], [3020], [3021], [3022], [3023], [3024], [3025], [3027], [3028], [3029], [3030] [2018-09-11 23:28:34,991 INFO L148 AbstractInterpreter]: Using domain OctagonDomain [2018-09-11 23:28:34,991 INFO L101 FixpointEngine]: Starting fixpoint engine with domain OctagonDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 23:29:26,167 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 23:29:26,167 INFO L272 AbstractInterpreter]: Visited 535 different actions 1064 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-09-11 23:29:26,189 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 23:29:31,212 INFO L232 lantSequenceWeakener]: Weakened 566 states. On average, predicates are now at 77.49% of their original sizes. [2018-09-11 23:29:31,213 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 23:29:33,362 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 23:29:33,362 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 23:29:33,362 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2018-09-11 23:29:33,362 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 23:29:33,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2018-09-11 23:29:33,364 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2018-09-11 23:29:33,364 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2018-09-11 23:29:33,365 INFO L87 Difference]: Start difference. First operand 2229 states and 2941 transitions. Second operand 25 states. Received shutdown request... [2018-09-11 23:30:36,545 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-09-11 23:30:36,545 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-11 23:30:36,552 WARN L206 ceAbstractionStarter]: Timeout [2018-09-11 23:30:36,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 11:30:36 BoogieIcfgContainer [2018-09-11 23:30:36,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 23:30:36,554 INFO L168 Benchmark]: Toolchain (without parser) took 257617.27 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 1.4 GB in the end (delta: -35.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-11 23:30:36,555 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 23:30:36,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1964.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-11 23:30:36,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 221.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-11 23:30:36,558 INFO L168 Benchmark]: Boogie Preprocessor took 849.30 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 835.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2018-09-11 23:30:36,559 INFO L168 Benchmark]: RCFGBuilder took 8835.40 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 548.6 MB). Peak memory consumption was 548.6 MB. Max. memory is 7.1 GB. [2018-09-11 23:30:36,559 INFO L168 Benchmark]: TraceAbstraction took 245736.89 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.4 GB in the end (delta: 260.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-11 23:30:36,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1964.97 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 221.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 849.30 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 835.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8835.40 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 548.6 MB). Peak memory consumption was 548.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245736.89 ms. Allocated memory was 2.4 GB in the beginning and 4.2 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 1.4 GB in the end (delta: 260.7 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 108). Cancelled while BasicCegarLoop was constructing difference of abstraction (2229states) and FLOYD_HOARE automaton (currently 36 states, 25 states before enhancement), while ReachableStatesComputation was computing reachable states (3385 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 245.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 132.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2100 SDtfs, 8133 SDslu, 2052 SDs, 0 SdLazy, 35085 SolverSat, 2322 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 120.9s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 869 GetRequests, 756 SyntacticMatches, 39 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 858 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2229occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 94.4s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9965682245743388 AbsIntWeakeningRatio, 0.07451923076923077 AbsIntAvgWeakeningVarsNumRemoved, 168.1971153846154 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 484 StatesRemovedByMinimization, 2 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/Problem18_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_23-30-36-580.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label53_true-unreach-call.c_svcomp-Reach-64bit-ToothlessTaipan_OCT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_23-30-36-580.csv Completed graceful shutdown