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_CON-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 11:17:59,375 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 11:17:59,378 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 11:17:59,390 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 11:17:59,391 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 11:17:59,392 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 11:17:59,393 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 11:17:59,395 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 11:17:59,396 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 11:17:59,397 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 11:17:59,398 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 11:17:59,399 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 11:17:59,399 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 11:17:59,401 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 11:17:59,402 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 11:17:59,402 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 11:17:59,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 11:17:59,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 11:17:59,407 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 11:17:59,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 11:17:59,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 11:17:59,411 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 11:17:59,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 11:17:59,414 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 11:17:59,414 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 11:17:59,415 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 11:17:59,416 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 11:17:59,417 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 11:17:59,418 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 11:17:59,420 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 11:17:59,420 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 11:17:59,421 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 11:17:59,421 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 11:17:59,421 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 11:17:59,422 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 11:17:59,423 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 11:17:59,423 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_CON-OldIcfg.epf [2018-08-08 11:17:59,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 11:17:59,440 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 11:17:59,441 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 11:17:59,441 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 11:17:59,442 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 11:17:59,442 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 11:17:59,442 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 11:17:59,442 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 11:17:59,443 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-08-08 11:17:59,443 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 11:17:59,443 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 11:17:59,443 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 11:17:59,444 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 11:17:59,444 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 11:17:59,444 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 11:17:59,445 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 11:17:59,445 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 11:17:59,445 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 11:17:59,445 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 11:17:59,445 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 11:17:59,446 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 11:17:59,446 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 11:17:59,446 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 11:17:59,446 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 11:17:59,446 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 11:17:59,447 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 11:17:59,447 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 11:17:59,447 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 11:17:59,447 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 11:17:59,447 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 11:17:59,448 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 11:17:59,448 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 11:17:59,448 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 11:17:59,448 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 11:17:59,508 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 11:17:59,525 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 11:17:59,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 11:17:59,532 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 11:17:59,533 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 11:17:59,534 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c [2018-08-08 11:17:59,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36dc18013/e865c7bef2544b028cc88f60bbe1ab68/FLAGa8da590e8 [2018-08-08 11:18:00,533 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 11:18:00,535 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label46_true-unreach-call.c [2018-08-08 11:18:00,593 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36dc18013/e865c7bef2544b028cc88f60bbe1ab68/FLAGa8da590e8 [2018-08-08 11:18:00,607 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36dc18013/e865c7bef2544b028cc88f60bbe1ab68 [2018-08-08 11:18:00,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 11:18:00,621 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 11:18:00,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 11:18:00,625 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 11:18:00,632 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 11:18:00,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:18:00" (1/1) ... [2018-08-08 11:18:00,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b765d93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:00, skipping insertion in model container [2018-08-08 11:18:00,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 11:18:00" (1/1) ... [2018-08-08 11:18:01,078 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 11:18:03,167 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 11:18:03,186 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 11:18:04,333 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 11:18:05,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05 WrapperNode [2018-08-08 11:18:05,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 11:18:05,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 11:18:05,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 11:18:05,077 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 11:18:05,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:05,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:05,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 11:18:05,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 11:18:05,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 11:18:05,407 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 11:18:06,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:06,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:06,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:06,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:07,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:07,182 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:07,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... [2018-08-08 11:18:07,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 11:18:07,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 11:18:07,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 11:18:07,486 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 11:18:07,487 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 11:18:07,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 11:18:07,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 11:18:07,571 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 [2018-08-08 11:18:07,571 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 [2018-08-08 11:18:07,571 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 11:18:07,571 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 11:18:07,571 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 [2018-08-08 11:18:07,572 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 [2018-08-08 11:18:07,572 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 11:18:07,572 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 11:18:07,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 11:18:07,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 11:18:07,573 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 11:18:07,573 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 11:18:07,574 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 11:18:07,574 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 11:18:07,574 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 11:18:07,574 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 11:18:30,007 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 11:18:30,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:18:30 BoogieIcfgContainer [2018-08-08 11:18:30,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 11:18:30,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 11:18:30,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 11:18:30,013 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 11:18:30,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 11:18:00" (1/3) ... [2018-08-08 11:18:30,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf4ebe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 11:18:30, skipping insertion in model container [2018-08-08 11:18:30,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 11:18:05" (2/3) ... [2018-08-08 11:18:30,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bf4ebe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 11:18:30, skipping insertion in model container [2018-08-08 11:18:30,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 11:18:30" (3/3) ... [2018-08-08 11:18:30,018 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label46_true-unreach-call.c [2018-08-08 11:18:30,029 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 11:18:30,041 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 11:18:30,126 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 11:18:30,126 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 11:18:30,127 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 11:18:30,127 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 11:18:30,127 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 11:18:30,127 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 11:18:30,127 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 11:18:30,127 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 11:18:30,128 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 11:18:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-08-08 11:18:30,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-08-08 11:18:30,206 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 11:18:30,207 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] [2018-08-08 11:18:30,208 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 11:18:30,213 INFO L82 PathProgramCache]: Analyzing trace with hash -2022176224, now seen corresponding path program 1 times [2018-08-08 11:18:30,216 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 11:18:30,217 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-08-08 11:18:30,219 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], [1286], [1288], [5775], [5779], [5785], [5789], [6833], [6834], [6835], [6839] [2018-08-08 11:18:30,254 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 11:18:30,255 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 11:18:30,463 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 11:18:30,465 INFO L272 AbstractInterpreter]: Visited 38 different actions 38 times. Never merged. Never widened. Never found a fixpoint. Largest state had 25 variables. [2018-08-08 11:18:30,495 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 11:18:30,661 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 76.73% of their original sizes. [2018-08-08 11:18:30,661 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 11:18:30,824 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 11:18:30,827 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 11:18:30,827 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-08-08 11:18:30,827 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 11:18:30,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-08 11:18:30,841 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-08 11:18:30,842 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-08-08 11:18:30,845 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 5 states. [2018-08-08 11:18:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 11:18:52,468 INFO L93 Difference]: Finished difference Result 4946 states and 9354 transitions. [2018-08-08 11:18:52,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-08-08 11:18:52,474 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-08-08 11:18:52,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 11:18:52,517 INFO L225 Difference]: With dead ends: 4946 [2018-08-08 11:18:52,517 INFO L226 Difference]: Without dead ends: 3166 [2018-08-08 11:18:52,531 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-08-08 11:18:52,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2018-08-08 11:18:52,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 3164. [2018-08-08 11:18:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3164 states. [2018-08-08 11:18:52,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 4690 transitions. [2018-08-08 11:18:52,726 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 4690 transitions. Word has length 39 [2018-08-08 11:18:52,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 11:18:52,728 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 4690 transitions. [2018-08-08 11:18:52,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-08 11:18:52,729 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 4690 transitions. [2018-08-08 11:18:52,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2018-08-08 11:18:52,743 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 11:18:52,744 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:18:52,745 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 11:18:52,745 INFO L82 PathProgramCache]: Analyzing trace with hash 682434656, now seen corresponding path program 1 times [2018-08-08 11:18:52,745 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 11:18:52,746 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 280 with the following transitions: [2018-08-08 11:18:52,747 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], [1286], [1288], [1291], [1299], [1307], [1315], [1323], [1331], [1339], [1347], [1355], [1363], [1371], [1379], [1387], [1395], [1403], [1411], [1419], [1427], [1435], [1443], [1451], [1459], [1467], [1475], [1483], [1491], [1499], [1507], [1515], [1523], [1531], [1539], [1547], [1555], [1563], [1575], [1579], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1645], [1656], [1667], [1671], [1675], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1738], [1742], [1746], [1750], [1754], [1758], [1762], [1766], [1770], [1774], [1778], [1782], [1786], [1790], [1794], [1798], [1802], [1806], [1810], [1814], [1825], [1829], [1833], [1844], [1848], [1852], [1856], [1860], [1864], [1868], [1872], [1876], [1880], [1884], [1888], [1899], [1903], [1907], [1911], [1915], [1919], [1923], [1927], [1931], [1935], [1939], [1950], [1954], [1958], [1969], [1973], [1977], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2032], [2036], [2040], [2044], [2048], [2052], [2056], [2060], [2064], [2068], [2072], [2076], [2080], [2084], [2088], [2099], [2103], [2107], [2111], [2115], [2126], [2130], [2134], [2138], [2142], [2146], [2150], [2154], [2158], [2162], [2173], [2177], [2181], [2192], [2196], [2200], [2204], [2208], [2219], [2223], [2227], [2231], [2235], [2239], [2250], [2261], [2265], [2269], [2273], [2277], [2288], [2292], [2303], [2307], [2311], [2315], [2319], [2323], [2334], [2338], [2342], [2346], [2350], [2354], [2358], [2362], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2408], [2650], [5775], [5779], [5785], [5789], [5791], [6833], [6834], [6835], [6839], [6840] [2018-08-08 11:18:52,764 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 11:18:52,765 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2)