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/Problem04_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 14:40:43,211 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 14:40:43,213 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 14:40:43,226 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 14:40:43,227 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 14:40:43,228 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 14:40:43,229 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 14:40:43,231 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 14:40:43,233 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 14:40:43,234 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 14:40:43,235 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 14:40:43,235 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 14:40:43,236 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 14:40:43,238 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 14:40:43,239 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 14:40:43,240 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 14:40:43,241 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 14:40:43,243 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 14:40:43,245 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 14:40:43,247 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 14:40:43,248 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 14:40:43,250 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 14:40:43,252 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 14:40:43,253 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 14:40:43,253 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 14:40:43,254 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 14:40:43,255 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 14:40:43,256 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 14:40:43,257 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 14:40:43,258 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 14:40:43,259 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 14:40:43,263 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 14:40:43,263 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 14:40:43,263 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 14:40:43,264 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 14:40:43,265 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 14:40:43,265 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 14:40:43,299 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 14:40:43,300 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 14:40:43,301 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 14:40:43,301 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 14:40:43,301 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 14:40:43,301 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 14:40:43,301 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-11 14:40:43,302 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 14:40:43,302 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-11 14:40:43,302 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-11 14:40:43,302 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 14:40:43,302 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 14:40:43,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 14:40:43,303 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 14:40:43,304 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 14:40:43,304 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 14:40:43,304 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 14:40:43,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 14:40:43,304 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 14:40:43,305 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 14:40:43,305 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 14:40:43,305 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 14:40:43,305 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 14:40:43,306 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 14:40:43,306 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 14:40:43,307 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 14:40:43,307 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 14:40:43,307 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 14:40:43,307 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 14:40:43,307 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 14:40:43,308 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 14:40:43,308 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 14:40:43,308 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 14:40:43,308 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 14:40:43,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 14:40:43,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 14:40:43,409 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 14:40:43,410 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 14:40:43,411 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 14:40:43,411 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label51_true-unreach-call.c [2018-09-11 14:40:43,754 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4e689ad5/af7879ab751144c5b919b7c5bae30d81/FLAG3bf5f65ce [2018-09-11 14:40:44,211 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 14:40:44,212 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label51_true-unreach-call.c [2018-09-11 14:40:44,251 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4e689ad5/af7879ab751144c5b919b7c5bae30d81/FLAG3bf5f65ce [2018-09-11 14:40:44,269 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4e689ad5/af7879ab751144c5b919b7c5bae30d81 [2018-09-11 14:40:44,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 14:40:44,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 14:40:44,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 14:40:44,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 14:40:44,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 14:40:44,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 02:40:44" (1/1) ... [2018-09-11 14:40:44,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59918db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:44, skipping insertion in model container [2018-09-11 14:40:44,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 02:40:44" (1/1) ... [2018-09-11 14:40:44,682 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 14:40:45,754 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 14:40:45,778 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 14:40:46,503 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 14:40:46,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46 WrapperNode [2018-09-11 14:40:46,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 14:40:46,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 14:40:46,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 14:40:46,660 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 14:40:46,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:46,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:46,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 14:40:46,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 14:40:46,822 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 14:40:46,823 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 14:40:47,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,521 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (1/1) ... [2018-09-11 14:40:47,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 14:40:47,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 14:40:47,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 14:40:47,574 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 14:40:47,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (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 14:40:47,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 14:40:47,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 14:40:47,656 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 14:40:47,656 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 14:40:47,656 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 14:40:47,657 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 14:40:47,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 14:40:47,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 14:40:47,657 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 14:40:47,658 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 14:40:47,658 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 14:40:47,659 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 14:40:47,659 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 14:40:47,659 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 14:40:58,450 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 14:40:58,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 02:40:58 BoogieIcfgContainer [2018-09-11 14:40:58,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 14:40:58,451 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 14:40:58,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 14:40:58,455 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 14:40:58,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 02:40:44" (1/3) ... [2018-09-11 14:40:58,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd6b9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 02:40:58, skipping insertion in model container [2018-09-11 14:40:58,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 02:40:46" (2/3) ... [2018-09-11 14:40:58,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd6b9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 02:40:58, skipping insertion in model container [2018-09-11 14:40:58,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 02:40:58" (3/3) ... [2018-09-11 14:40:58,459 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label51_true-unreach-call.c [2018-09-11 14:40:58,469 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 14:40:58,479 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 14:40:58,544 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 14:40:58,545 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 14:40:58,545 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 14:40:58,545 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 14:40:58,545 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 14:40:58,545 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 14:40:58,545 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 14:40:58,545 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 14:40:58,546 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 14:40:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-11 14:40:58,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2018-09-11 14:40:58,643 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 14:40:58,646 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:40:58,647 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 14:40:58,653 INFO L82 PathProgramCache]: Analyzing trace with hash 524795908, now seen corresponding path program 1 times [2018-09-11 14:40:58,656 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 14:40:58,659 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 801 with the following transitions: [2018-09-11 14:40:58,664 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [366], [370], [374], [378], [382], [386], [390], [394], [398], [402], [406], [410], [414], [418], [422], [426], [430], [434], [438], [442], [446], [450], [454], [458], [462], [466], [470], [474], [478], [482], [486], [490], [494], [498], [502], [506], [510], [514], [518], [522], [526], [530], [534], [538], [542], [546], [550], [554], [558], [562], [566], [570], [574], [578], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [670], [674], [678], [682], [686], [690], [694], [698], [702], [706], [710], [714], [718], [722], [726], [730], [734], [738], [742], [746], [750], [754], [758], [762], [766], [770], [774], [778], [782], [786], [790], [794], [798], [802], [806], [810], [814], [818], [822], [826], [830], [834], [838], [842], [846], [850], [854], [858], [862], [866], [870], [874], [878], [882], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], 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[3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3530], [3532], [3534], [3535], [3536], [3538], [3540] [2018-09-11 14:40:58,764 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-09-11 14:40:58,764 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