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/Problem13_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 16:44:00,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 16:44:00,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 16:44:00,927 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 16:44:00,927 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 16:44:00,928 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 16:44:00,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 16:44:00,931 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 16:44:00,933 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 16:44:00,934 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 16:44:00,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 16:44:00,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 16:44:00,936 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 16:44:00,937 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 16:44:00,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 16:44:00,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 16:44:00,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 16:44:00,942 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 16:44:00,944 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 16:44:00,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 16:44:00,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 16:44:00,948 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 16:44:00,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 16:44:00,952 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 16:44:00,953 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 16:44:00,954 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 16:44:00,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 16:44:00,958 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 16:44:00,961 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 16:44:00,965 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 16:44:00,965 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 16:44:00,966 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 16:44:00,968 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 16:44:00,968 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 16:44:00,969 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 16:44:00,972 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 16:44:00,972 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 16:44:01,003 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 16:44:01,003 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 16:44:01,004 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 16:44:01,004 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 16:44:01,004 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 16:44:01,005 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 16:44:01,005 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 16:44:01,005 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 16:44:01,005 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-08 16:44:01,005 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 16:44:01,005 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 16:44:01,006 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 16:44:01,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 16:44:01,006 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 16:44:01,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 16:44:01,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 16:44:01,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 16:44:01,007 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 16:44:01,007 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 16:44:01,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 16:44:01,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 16:44:01,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 16:44:01,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 16:44:01,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 16:44:01,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 16:44:01,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 16:44:01,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 16:44:01,009 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 16:44:01,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 16:44:01,010 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 16:44:01,010 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 16:44:01,010 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 16:44:01,010 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 16:44:01,057 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 16:44:01,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 16:44:01,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 16:44:01,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 16:44:01,080 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 16:44:01,081 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-08-08 16:44:01,468 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f597b56ff/e1564e7118d64684ab239898e2ce68bc/FLAGd5e2b5988 [2018-08-08 16:44:01,946 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 16:44:01,947 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label41_true-unreach-call.c [2018-08-08 16:44:01,983 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f597b56ff/e1564e7118d64684ab239898e2ce68bc/FLAGd5e2b5988 [2018-08-08 16:44:01,999 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f597b56ff/e1564e7118d64684ab239898e2ce68bc [2018-08-08 16:44:02,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 16:44:02,013 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 16:44:02,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 16:44:02,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 16:44:02,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 16:44:02,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 04:44:02" (1/1) ... [2018-08-08 16:44:02,025 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2abb88a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:02, skipping insertion in model container [2018-08-08 16:44:02,025 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 04:44:02" (1/1) ... [2018-08-08 16:44:02,427 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 16:44:03,677 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 16:44:03,697 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 16:44:04,491 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 16:44:04,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04 WrapperNode [2018-08-08 16:44:04,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 16:44:04,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 16:44:04,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 16:44:04,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 16:44:04,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:05,026 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:05,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 16:44:05,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 16:44:05,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 16:44:05,186 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 16:44:05,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:05,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:05,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:05,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:06,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:06,343 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:06,403 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (1/1) ... [2018-08-08 16:44:06,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 16:44:06,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 16:44:06,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 16:44:06,464 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 16:44:06,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (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 16:44:06,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 16:44:06,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 16:44:06,538 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 16:44:06,539 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 16:44:06,539 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 [2018-08-08 16:44:06,539 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 [2018-08-08 16:44:06,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 16:44:06,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 16:44:06,540 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_output4 [2018-08-08 16:44:06,540 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_output4 [2018-08-08 16:44:06,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 16:44:06,540 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 16:44:06,540 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 16:44:06,540 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 16:44:21,222 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 16:44:21,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:44:21 BoogieIcfgContainer [2018-08-08 16:44:21,223 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 16:44:21,224 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 16:44:21,224 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 16:44:21,227 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 16:44:21,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 04:44:02" (1/3) ... [2018-08-08 16:44:21,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e114c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:44:21, skipping insertion in model container [2018-08-08 16:44:21,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 04:44:04" (2/3) ... [2018-08-08 16:44:21,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e114c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:44:21, skipping insertion in model container [2018-08-08 16:44:21,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:44:21" (3/3) ... [2018-08-08 16:44:21,230 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label41_true-unreach-call.c [2018-08-08 16:44:21,239 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 16:44:21,249 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 16:44:21,326 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 16:44:21,327 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 16:44:21,327 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 16:44:21,327 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 16:44:21,327 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 16:44:21,328 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 16:44:21,328 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 16:44:21,328 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 16:44:21,328 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 16:44:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-08-08 16:44:21,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-08-08 16:44:21,382 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 16:44:21,384 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] [2018-08-08 16:44:21,385 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 16:44:21,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1768272161, now seen corresponding path program 1 times [2018-08-08 16:44:21,394 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 16:44:21,395 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 52 with the following transitions: [2018-08-08 16:44:21,398 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], [309], [311], [3064], [3068], [3074], [3078], [4267], [4268], [4269], [4271] [2018-08-08 16:44:21,443 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 16:44:21,443 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 16:45:14,274 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 16:45:14,276 INFO L272 AbstractInterpreter]: Visited 50 different actions 50 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-08-08 16:45:14,290 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 16:45:35,948 INFO L232 lantSequenceWeakener]: Weakened 48 states. On average, predicates are now at 72.77% of their original sizes. [2018-08-08 16:45:35,949 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 16:45:36,083 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 16:45:36,084 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 16:45:36,085 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-08 16:45:36,085 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 16:45:36,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-08 16:45:36,098 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-08 16:45:36,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-08-08 16:45:36,101 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 6 states. [2018-08-08 16:45:55,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 16:45:55,459 INFO L93 Difference]: Finished difference Result 3044 states and 5648 transitions. [2018-08-08 16:45:55,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-08-08 16:45:55,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2018-08-08 16:45:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 16:45:55,496 INFO L225 Difference]: With dead ends: 3044 [2018-08-08 16:45:55,496 INFO L226 Difference]: Without dead ends: 1922 [2018-08-08 16:45:55,510 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 50 GetRequests, 46 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 16:45:55,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1922 states. [2018-08-08 16:45:55,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1922 to 1920. [2018-08-08 16:45:55,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1920 states. [2018-08-08 16:45:55,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1920 states to 1920 states and 2831 transitions. [2018-08-08 16:45:55,667 INFO L78 Accepts]: Start accepts. Automaton has 1920 states and 2831 transitions. Word has length 51 [2018-08-08 16:45:55,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 16:45:55,668 INFO L480 AbstractCegarLoop]: Abstraction has 1920 states and 2831 transitions. [2018-08-08 16:45:55,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-08 16:45:55,671 INFO L276 IsEmpty]: Start isEmpty. Operand 1920 states and 2831 transitions. [2018-08-08 16:45:55,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-08-08 16:45:55,682 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 16:45:55,682 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:45:55,683 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 16:45:55,683 INFO L82 PathProgramCache]: Analyzing trace with hash -33936752, now seen corresponding path program 1 times [2018-08-08 16:45:55,683 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 16:45:55,684 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 153 with the following transitions: [2018-08-08 16:45:55,685 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], [309], [311], [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], [522], [526], [530], [534], [538], [542], [553], [557], [561], [565], [569], [573], [577], [581], [592], [596], [600], [604], [608], [612], [616], [620], [624], [628], [632], [636], [639], [1612], [3064], [3068], [3074], [3078], [3080], [4267], [4268], [4269], [4271], [4272] [2018-08-08 16:45:55,692 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-08-08 16:45:55,695 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2)