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/Problem12_label53_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 10:43:06,668 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 10:43:06,671 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 10:43:06,683 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 10:43:06,683 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 10:43:06,684 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 10:43:06,685 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 10:43:06,687 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 10:43:06,689 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 10:43:06,690 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 10:43:06,691 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 10:43:06,691 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 10:43:06,692 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 10:43:06,693 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 10:43:06,694 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 10:43:06,695 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 10:43:06,696 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 10:43:06,698 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 10:43:06,700 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 10:43:06,701 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 10:43:06,702 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 10:43:06,704 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 10:43:06,706 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-08 10:43:06,706 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-08 10:43:06,707 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-08 10:43:06,708 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-08 10:43:06,709 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-08 10:43:06,710 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-08 10:43:06,710 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-08 10:43:06,712 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-08 10:43:06,712 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-08 10:43:06,713 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-08 10:43:06,713 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-08 10:43:06,713 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-08 10:43:06,714 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-08 10:43:06,715 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-08 10:43:06,715 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 10:43:06,731 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 10:43:06,731 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 10:43:06,732 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 10:43:06,732 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 10:43:06,732 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 10:43:06,733 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 10:43:06,733 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 10:43:06,733 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 10:43:06,733 INFO L133 SettingsManager]: * Abstract domain=CongruenceDomain [2018-08-08 10:43:06,733 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 10:43:06,734 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 10:43:06,734 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-08 10:43:06,735 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 10:43:06,735 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 10:43:06,735 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 10:43:06,735 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 10:43:06,736 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 10:43:06,736 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 10:43:06,736 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 10:43:06,736 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 10:43:06,737 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 10:43:06,737 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 10:43:06,737 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 10:43:06,737 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 10:43:06,737 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 10:43:06,738 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 10:43:06,738 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 10:43:06,738 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 10:43:06,738 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 10:43:06,739 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 10:43:06,739 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 10:43:06,739 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 10:43:06,739 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 10:43:06,739 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 10:43:06,783 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 10:43:06,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 10:43:06,808 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 10:43:06,809 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 10:43:06,810 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 10:43:06,811 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label53_true-unreach-call.c [2018-08-08 10:43:07,214 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27607e0a/480ff48e53ba4d5db076f657ab6ea240/FLAGfbed88363 [2018-08-08 10:43:07,660 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 10:43:07,661 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label53_true-unreach-call.c [2018-08-08 10:43:07,702 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27607e0a/480ff48e53ba4d5db076f657ab6ea240/FLAGfbed88363 [2018-08-08 10:43:07,726 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b27607e0a/480ff48e53ba4d5db076f657ab6ea240 [2018-08-08 10:43:07,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 10:43:07,742 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 10:43:07,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 10:43:07,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 10:43:07,753 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 10:43:07,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 10:43:07" (1/1) ... [2018-08-08 10:43:07,758 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 10:43:07, skipping insertion in model container [2018-08-08 10:43:07,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 10:43:07" (1/1) ... [2018-08-08 10:43:08,091 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 10:43:09,095 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 10:43:09,112 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 10:43:09,774 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 10:43:10,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10 WrapperNode [2018-08-08 10:43:10,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 10:43:10,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 10:43:10,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 10:43:10,013 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 10:43:10,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:10,124 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:10,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 10:43:10,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 10:43:10,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 10:43:10,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 10:43:10,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:10,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:10,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:10,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:11,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:11,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:11,121 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (1/1) ... [2018-08-08 10:43:11,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 10:43:11,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 10:43:11,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 10:43:11,197 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 10:43:11,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (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 10:43:11,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 10:43:11,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 10:43:11,270 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 10:43:11,271 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 10:43:11,271 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 10:43:11,271 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 10:43:11,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 10:43:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 10:43:11,272 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 10:43:11,272 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 10:43:11,272 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 10:43:11,272 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 10:43:11,273 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 10:43:11,273 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 10:43:20,731 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 10:43:20,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 10:43:20 BoogieIcfgContainer [2018-08-08 10:43:20,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 10:43:20,734 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 10:43:20,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 10:43:20,747 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 10:43:20,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 10:43:07" (1/3) ... [2018-08-08 10:43:20,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779a821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 10:43:20, skipping insertion in model container [2018-08-08 10:43:20,748 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 10:43:10" (2/3) ... [2018-08-08 10:43:20,749 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@779a821 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 10:43:20, skipping insertion in model container [2018-08-08 10:43:20,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 10:43:20" (3/3) ... [2018-08-08 10:43:20,751 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label53_true-unreach-call.c [2018-08-08 10:43:20,761 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 10:43:20,770 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 10:43:20,832 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 10:43:20,833 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 10:43:20,833 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 10:43:20,833 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 10:43:20,834 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 10:43:20,834 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 10:43:20,834 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 10:43:20,834 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 10:43:20,834 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 10:43:20,874 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-08-08 10:43:20,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-08-08 10:43:20,883 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 10:43:20,884 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 10:43:20,885 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 10:43:20,891 INFO L82 PathProgramCache]: Analyzing trace with hash -737869135, now seen corresponding path program 1 times [2018-08-08 10:43:20,893 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 10:43:20,895 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 40 with the following transitions: [2018-08-08 10:43:20,898 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], [213], [215], [2360], [2364], [2370], [2374], [3269], [3270], [3271], [3273] [2018-08-08 10:43:20,937 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 10:43:20,937 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 10:43:21,307 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 10:43:21,309 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 10:43:21,353 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 10:43:21,539 INFO L232 lantSequenceWeakener]: Weakened 36 states. On average, predicates are now at 76.73% of their original sizes. [2018-08-08 10:43:21,540 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 10:43:21,699 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 10:43:21,700 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 10:43:21,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-08-08 10:43:21,701 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 10:43:21,706 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-08 10:43:21,713 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-08 10:43:21,713 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-08-08 10:43:21,716 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 5 states. [2018-08-08 10:43:34,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 10:43:34,829 INFO L93 Difference]: Finished difference Result 2448 states and 4699 transitions. [2018-08-08 10:43:34,833 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-08-08 10:43:34,834 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2018-08-08 10:43:34,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 10:43:34,862 INFO L225 Difference]: With dead ends: 2448 [2018-08-08 10:43:34,862 INFO L226 Difference]: Without dead ends: 1606 [2018-08-08 10:43:34,871 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 10:43:34,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2018-08-08 10:43:35,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1604. [2018-08-08 10:43:35,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-08-08 10:43:35,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2357 transitions. [2018-08-08 10:43:35,014 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2357 transitions. Word has length 39 [2018-08-08 10:43:35,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 10:43:35,015 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2357 transitions. [2018-08-08 10:43:35,015 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-08 10:43:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2357 transitions. [2018-08-08 10:43:35,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-08-08 10:43:35,021 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 10:43:35,021 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] [2018-08-08 10:43:35,021 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 10:43:35,022 INFO L82 PathProgramCache]: Analyzing trace with hash 2094367982, now seen corresponding path program 1 times [2018-08-08 10:43:35,022 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 10:43:35,022 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2018-08-08 10:43:35,023 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [518], [1374], [2360], [2364], [2370], [2374], [2376], [3269], [3270], [3271], [3273], [3274] [2018-08-08 10:43:35,027 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 10:43:35,027 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 10:43:40,163 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 10:43:40,164 INFO L272 AbstractInterpreter]: Visited 83 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-08-08 10:43:40,170 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 10:43:42,195 INFO L232 lantSequenceWeakener]: Weakened 112 states. On average, predicates are now at 75.69% of their original sizes. [2018-08-08 10:43:42,196 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 10:43:42,296 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 10:43:42,297 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 10:43:42,297 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-08-08 10:43:42,297 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 10:43:42,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-08 10:43:42,299 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-08 10:43:42,299 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-08-08 10:43:42,300 INFO L87 Difference]: Start difference. First operand 1604 states and 2357 transitions. Second operand 9 states. [2018-08-08 10:43:59,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 10:43:59,948 INFO L93 Difference]: Finished difference Result 3976 states and 6980 transitions. [2018-08-08 10:43:59,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-08-08 10:43:59,955 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 115 [2018-08-08 10:43:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 10:43:59,977 INFO L225 Difference]: With dead ends: 3976 [2018-08-08 10:43:59,977 INFO L226 Difference]: Without dead ends: 3146 [2018-08-08 10:43:59,985 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 120 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-08-08 10:43:59,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3146 states. [2018-08-08 10:44:00,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3146 to 3143. [2018-08-08 10:44:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3143 states. [2018-08-08 10:44:00,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3143 states to 3143 states and 3918 transitions. [2018-08-08 10:44:00,118 INFO L78 Accepts]: Start accepts. Automaton has 3143 states and 3918 transitions. Word has length 115 [2018-08-08 10:44:00,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 10:44:00,119 INFO L480 AbstractCegarLoop]: Abstraction has 3143 states and 3918 transitions. [2018-08-08 10:44:00,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-08 10:44:00,120 INFO L276 IsEmpty]: Start isEmpty. Operand 3143 states and 3918 transitions. [2018-08-08 10:44:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-08-08 10:44:00,134 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 10:44:00,135 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] [2018-08-08 10:44:00,136 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 10:44:00,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1481912730, now seen corresponding path program 1 times [2018-08-08 10:44:00,136 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 10:44:00,138 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-08-08 10:44:00,138 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [798], [1374], [2360], [2364], [2370], [2374], [2376], [3269], [3270], [3271], [3273], [3274] [2018-08-08 10:44:00,147 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 10:44:00,147 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 10:45:39,863 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 10:45:39,864 INFO L272 AbstractInterpreter]: Visited 153 different actions 300 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-08-08 10:45:39,900 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 10:45:59,464 INFO L232 lantSequenceWeakener]: Weakened 182 states. On average, predicates are now at 75.48% of their original sizes. [2018-08-08 10:45:59,465 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 10:45:59,611 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 10:45:59,612 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 10:45:59,612 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-08-08 10:45:59,612 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 10:45:59,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-08 10:45:59,613 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-08 10:45:59,614 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-08-08 10:45:59,614 INFO L87 Difference]: Start difference. First operand 3143 states and 3918 transitions. Second operand 9 states. [2018-08-08 10:46:11,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 10:46:11,799 INFO L93 Difference]: Finished difference Result 4746 states and 7019 transitions. [2018-08-08 10:46:11,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-08-08 10:46:11,807 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2018-08-08 10:46:11,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 10:46:11,826 INFO L225 Difference]: With dead ends: 4746 [2018-08-08 10:46:11,826 INFO L226 Difference]: Without dead ends: 3916 [2018-08-08 10:46:11,830 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-08-08 10:46:11,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3916 states. [2018-08-08 10:46:11,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3916 to 3913. [2018-08-08 10:46:11,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3913 states. [2018-08-08 10:46:11,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3913 states to 3913 states and 4717 transitions. [2018-08-08 10:46:11,930 INFO L78 Accepts]: Start accepts. Automaton has 3913 states and 4717 transitions. Word has length 185 [2018-08-08 10:46:11,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 10:46:11,931 INFO L480 AbstractCegarLoop]: Abstraction has 3913 states and 4717 transitions. [2018-08-08 10:46:11,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-08 10:46:11,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3913 states and 4717 transitions. [2018-08-08 10:46:11,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-08-08 10:46:11,935 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 10:46:11,936 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] [2018-08-08 10:46:11,936 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 10:46:11,936 INFO L82 PathProgramCache]: Analyzing trace with hash -273910686, now seen corresponding path program 1 times [2018-08-08 10:46:11,937 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 10:46:11,937 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-08-08 10:46:11,937 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], [213], [215], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [679], [683], [687], [691], [695], [699], [703], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [791], [795], [799], [803], [807], [811], [814], [1374], [2360], [2364], [2370], [2374], [2376], [3269], [3270], [3271], [3273], [3274] [2018-08-08 10:46:11,941 INFO L148 AbstractInterpreter]: Using domain CongruenceDomain [2018-08-08 10:46:11,941 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CongruenceDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown