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_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 17:48:44,968 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 17:48:44,971 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 17:48:44,984 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 17:48:44,985 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 17:48:44,986 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 17:48:44,987 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 17:48:44,989 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 17:48:44,990 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 17:48:44,991 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 17:48:44,992 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 17:48:44,993 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 17:48:44,994 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 17:48:44,995 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 17:48:44,996 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 17:48:44,997 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 17:48:44,998 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 17:48:44,999 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 17:48:45,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 17:48:45,003 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 17:48:45,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 17:48:45,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 17:48:45,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 17:48:45,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 17:48:45,008 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 17:48:45,009 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 17:48:45,010 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 17:48:45,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 17:48:45,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 17:48:45,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 17:48:45,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 17:48:45,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 17:48:45,014 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 17:48:45,015 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 17:48:45,016 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 17:48:45,016 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 17:48:45,017 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-11 17:48:45,032 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 17:48:45,032 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 17:48:45,033 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 17:48:45,033 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 17:48:45,033 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 17:48:45,033 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 17:48:45,034 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 17:48:45,034 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 17:48:45,034 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 17:48:45,034 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-11 17:48:45,034 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 17:48:45,035 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 17:48:45,035 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 17:48:45,035 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 17:48:45,036 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 17:48:45,036 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 17:48:45,036 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 17:48:45,036 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 17:48:45,036 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 17:48:45,037 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 17:48:45,037 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 17:48:45,037 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 17:48:45,037 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 17:48:45,037 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 17:48:45,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 17:48:45,038 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 17:48:45,038 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 17:48:45,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 17:48:45,038 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 17:48:45,039 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 17:48:45,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 17:48:45,039 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 17:48:45,039 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 17:48:45,039 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 17:48:45,081 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 17:48:45,097 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 17:48:45,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 17:48:45,102 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 17:48:45,102 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 17:48:45,103 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label56_true-unreach-call.c [2018-09-11 17:48:45,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3356d7b71/de55e8d7148a4ccfa8f457f43cc474d3/FLAGe8143c913 [2018-09-11 17:48:46,090 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 17:48:46,091 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label56_true-unreach-call.c [2018-09-11 17:48:46,158 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3356d7b71/de55e8d7148a4ccfa8f457f43cc474d3/FLAGe8143c913 [2018-09-11 17:48:46,182 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3356d7b71/de55e8d7148a4ccfa8f457f43cc474d3 [2018-09-11 17:48:46,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 17:48:46,201 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 17:48:46,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 17:48:46,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 17:48:46,213 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 17:48:46,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:48:46" (1/1) ... [2018-09-11 17:48:46,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@646e9fe5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:46, skipping insertion in model container [2018-09-11 17:48:46,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 05:48:46" (1/1) ... [2018-09-11 17:48:46,794 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 17:48:48,508 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 17:48:48,531 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 17:48:49,744 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 17:48:50,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50 WrapperNode [2018-09-11 17:48:50,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 17:48:50,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 17:48:50,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 17:48:50,456 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 17:48:50,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:50,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:50,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 17:48:50,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 17:48:50,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 17:48:50,828 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 17:48:52,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,157 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (1/1) ... [2018-09-11 17:48:52,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 17:48:52,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 17:48:52,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 17:48:52,755 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 17:48:52,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (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 17:48:52,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 17:48:52,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 17:48:52,826 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_output5 [2018-09-11 17:48:52,826 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_output5 [2018-09-11 17:48:52,826 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 17:48:52,826 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 17:48:52,826 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_output6 [2018-09-11 17:48:52,826 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_output6 [2018-09-11 17:48:52,827 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 17:48:52,827 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 17:48:52,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 17:48:52,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 17:48:52,827 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 [2018-09-11 17:48:52,828 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 [2018-09-11 17:48:52,828 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 17:48:52,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 17:48:52,828 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 17:48:52,829 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 17:49:15,302 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 17:49:15,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:49:15 BoogieIcfgContainer [2018-09-11 17:49:15,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 17:49:15,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 17:49:15,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 17:49:15,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 17:49:15,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 05:48:46" (1/3) ... [2018-09-11 17:49:15,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0a8d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 05:49:15, skipping insertion in model container [2018-09-11 17:49:15,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 05:48:50" (2/3) ... [2018-09-11 17:49:15,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d0a8d62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 05:49:15, skipping insertion in model container [2018-09-11 17:49:15,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 05:49:15" (3/3) ... [2018-09-11 17:49:15,312 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label56_true-unreach-call.c [2018-09-11 17:49:15,321 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 17:49:15,331 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 17:49:15,402 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 17:49:15,403 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 17:49:15,404 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 17:49:15,404 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 17:49:15,404 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 17:49:15,404 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 17:49:15,404 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 17:49:15,404 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 17:49:15,404 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 17:49:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-11 17:49:15,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-11 17:49:15,471 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 17:49:15,473 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] [2018-09-11 17:49:15,474 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 17:49:15,480 INFO L82 PathProgramCache]: Analyzing trace with hash -228102090, now seen corresponding path program 1 times [2018-09-11 17:49:15,483 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 17:49:15,484 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 59 with the following transitions: [2018-09-11 17:49:15,487 INFO L202 CegarAbsIntRunner]: [0], [1], [1075], [1082], [1090], [1098], [1106], [1114], [1122], [1130], [1138], [1146], [1154], [1162], [1170], [1178], [1186], [1194], [1202], [1210], [1218], [1226], [1234], [1242], [1250], [1258], [1266], [1274], [1282], [1290], [1298], [1306], [1314], [1322], [1330], [1338], [1346], [1354], [1362], [1370], [1378], [1386], [1394], [1402], [1410], [1418], [1426], [1434], [1438], [1440], [5775], [5779], [5785], [5789], [6833], [6834], [6835], [6839] [2018-09-11 17:49:15,538 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-11 17:49:15,539 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown