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-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label54_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:40:05,895 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:40:05,897 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:40:05,918 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:40:05,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:40:05,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:40:05,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:40:05,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:40:05,927 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:40:05,933 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:40:05,935 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:40:05,935 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:40:05,936 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:40:05,937 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:40:05,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:40:05,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:40:05,939 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:40:05,941 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:40:05,943 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:40:05,945 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:40:05,946 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:40:05,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:40:05,954 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:40:05,954 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:40:05,954 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:40:05,956 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:40:05,957 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:40:05,958 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:40:05,959 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:40:05,960 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:40:05,960 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:40:05,961 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:40:05,961 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:40:05,961 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:40:05,962 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:40:05,962 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:40:05,963 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 10:40:05,983 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:40:05,983 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:40:05,986 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:40:05,986 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:40:05,986 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:40:05,986 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:40:05,987 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:40:05,987 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:40:05,987 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:40:05,987 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:40:05,987 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:40:05,988 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:40:05,988 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:40:05,991 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:40:05,992 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:40:05,992 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:40:05,992 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:40:05,992 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:40:05,992 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:40:05,993 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:40:05,993 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:40:05,993 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:40:05,993 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:40:05,993 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:40:05,994 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:40:05,994 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:40:05,994 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:40:05,994 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:40:05,996 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:40:05,996 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:40:05,996 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:40:05,996 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:40:05,997 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:40:06,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:40:06,076 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:40:06,082 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:40:06,083 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:40:06,083 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:40:06,084 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label54_true-unreach-call.c [2018-09-10 10:40:06,442 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33857ba59/1ebfcc481ceb476cbc5e2b76baaeaa9d/FLAGd15c9ddf6 [2018-09-10 10:40:06,983 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:40:06,986 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label54_true-unreach-call.c [2018-09-10 10:40:07,028 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33857ba59/1ebfcc481ceb476cbc5e2b76baaeaa9d/FLAGd15c9ddf6 [2018-09-10 10:40:07,046 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33857ba59/1ebfcc481ceb476cbc5e2b76baaeaa9d [2018-09-10 10:40:07,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:40:07,062 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:40:07,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:40:07,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:40:07,071 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:40:07,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:40:07" (1/1) ... [2018-09-10 10:40:07,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c758a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:07, skipping insertion in model container [2018-09-10 10:40:07,076 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:40:07" (1/1) ... [2018-09-10 10:40:07,458 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:40:08,494 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:40:08,514 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:40:09,469 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:40:09,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09 WrapperNode [2018-09-10 10:40:09,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:40:09,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:40:09,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:40:09,622 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:40:09,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:09,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:09,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:40:09,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:40:09,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:40:09,791 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:40:10,239 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,424 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,455 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (1/1) ... [2018-09-10 10:40:10,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:40:10,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:40:10,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:40:10,485 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:40:10,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (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 [2018-09-10 10:40:10,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:40:10,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:40:10,566 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 [2018-09-10 10:40:10,566 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 [2018-09-10 10:40:10,566 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 [2018-09-10 10:40:10,566 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 [2018-09-10 10:40:10,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:40:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:40:10,567 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 [2018-09-10 10:40:10,567 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 [2018-09-10 10:40:10,567 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:40:10,567 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:40:10,568 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 [2018-09-10 10:40:10,568 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 [2018-09-10 10:40:22,748 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:40:22,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:40:22 BoogieIcfgContainer [2018-09-10 10:40:22,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:40:22,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:40:22,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:40:22,753 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:40:22,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:40:07" (1/3) ... [2018-09-10 10:40:22,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131ce753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:40:22, skipping insertion in model container [2018-09-10 10:40:22,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:40:09" (2/3) ... [2018-09-10 10:40:22,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@131ce753 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:40:22, skipping insertion in model container [2018-09-10 10:40:22,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:40:22" (3/3) ... [2018-09-10 10:40:22,757 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label54_true-unreach-call.c [2018-09-10 10:40:22,766 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:40:22,779 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:40:22,847 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:40:22,848 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:40:22,848 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:40:22,848 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:40:22,848 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:40:22,848 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:40:22,849 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:40:22,849 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:40:22,849 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:40:22,908 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-10 10:40:22,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2018-09-10 10:40:22,957 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:40:22,959 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:40:22,961 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]=== [2018-09-10 10:40:22,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1748193748, now seen corresponding path program 1 times [2018-09-10 10:40:22,970 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:40:23,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:23,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:40:23,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:23,026 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:40:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:40:25,072 WARN L175 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:40:26,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:40:26,044 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:40:26,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:40:26,044 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:40:26,051 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:40:26,065 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:40:26,065 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:40:26,068 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-10 10:40:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:40:32,902 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-10 10:40:32,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:40:32,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 817 [2018-09-10 10:40:32,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:40:32,949 INFO L225 Difference]: With dead ends: 2647 [2018-09-10 10:40:32,949 INFO L226 Difference]: Without dead ends: 1738 [2018-09-10 10:40:32,961 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:40:32,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-10 10:40:33,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-10 10:40:33,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-10 10:40:33,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3151 transitions. [2018-09-10 10:40:33,127 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3151 transitions. Word has length 817 [2018-09-10 10:40:33,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:40:33,132 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3151 transitions. [2018-09-10 10:40:33,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:40:33,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3151 transitions. [2018-09-10 10:40:33,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 827 [2018-09-10 10:40:33,165 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:40:33,166 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:40:33,167 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:40:33,168 INFO L82 PathProgramCache]: Analyzing trace with hash -2065197871, now seen corresponding path program 1 times [2018-09-10 10:40:33,168 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:40:33,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:33,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:40:33,170 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:33,170 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:40:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:40:34,416 WARN L175 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 7 [2018-09-10 10:40:35,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:40:35,289 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:40:35,289 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 10:40:35,289 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:40:35,292 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:40:35,292 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:40:35,292 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-10 10:40:35,293 INFO L87 Difference]: Start difference. First operand 1738 states and 3151 transitions. Second operand 5 states. [2018-09-10 10:40:49,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:40:49,163 INFO L93 Difference]: Finished difference Result 6810 states and 12604 transitions. [2018-09-10 10:40:49,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-10 10:40:49,164 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 826 [2018-09-10 10:40:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:40:49,199 INFO L225 Difference]: With dead ends: 6810 [2018-09-10 10:40:49,200 INFO L226 Difference]: Without dead ends: 5078 [2018-09-10 10:40:49,209 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-10 10:40:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2018-09-10 10:40:49,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2018-09-10 10:40:49,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2018-09-10 10:40:49,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8809 transitions. [2018-09-10 10:40:49,353 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 8809 transitions. Word has length 826 [2018-09-10 10:40:49,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:40:49,355 INFO L480 AbstractCegarLoop]: Abstraction has 5078 states and 8809 transitions. [2018-09-10 10:40:49,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:40:49,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 8809 transitions. [2018-09-10 10:40:49,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 892 [2018-09-10 10:40:49,380 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:40:49,381 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:40:49,382 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:40:49,382 INFO L82 PathProgramCache]: Analyzing trace with hash -116134915, now seen corresponding path program 1 times [2018-09-10 10:40:49,383 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:40:49,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:49,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:40:49,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:49,384 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:40:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:40:49,752 WARN L175 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:40:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:40:50,557 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:40:50,557 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 10:40:50,557 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:40:50,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:40:50,560 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:40:50,560 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:40:50,560 INFO L87 Difference]: Start difference. First operand 5078 states and 8809 transitions. Second operand 6 states. [2018-09-10 10:40:58,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:40:58,207 INFO L93 Difference]: Finished difference Result 12125 states and 21100 transitions. [2018-09-10 10:40:58,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:40:58,210 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 891 [2018-09-10 10:40:58,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:40:58,248 INFO L225 Difference]: With dead ends: 12125 [2018-09-10 10:40:58,249 INFO L226 Difference]: Without dead ends: 7053 [2018-09-10 10:40:58,263 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:40:58,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7053 states. [2018-09-10 10:40:58,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7053 to 7001. [2018-09-10 10:40:58,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7001 states. [2018-09-10 10:40:58,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 10863 transitions. [2018-09-10 10:40:58,452 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 10863 transitions. Word has length 891 [2018-09-10 10:40:58,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:40:58,453 INFO L480 AbstractCegarLoop]: Abstraction has 7001 states and 10863 transitions. [2018-09-10 10:40:58,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:40:58,453 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 10863 transitions. [2018-09-10 10:40:58,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 914 [2018-09-10 10:40:58,488 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:40:58,489 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:40:58,489 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:40:58,490 INFO L82 PathProgramCache]: Analyzing trace with hash 1190144126, now seen corresponding path program 1 times [2018-09-10 10:40:58,490 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:40:58,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:58,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:40:58,492 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:40:58,492 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:40:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:40:58,846 WARN L175 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-10 10:40:59,201 WARN L175 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-10 10:40:59,837 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:40:59,838 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:40:59,838 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:40:59,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:40:59,848 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:00,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:00,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:01,200 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 10:41:01,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:01,536 WARN L175 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 10:41:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 90 proven. 17 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:41:02,490 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:41:02,490 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-09-10 10:41:02,490 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:02,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:41:02,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:41:02,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-09-10 10:41:02,493 INFO L87 Difference]: Start difference. First operand 7001 states and 10863 transitions. Second operand 5 states. [2018-09-10 10:41:10,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:10,896 INFO L93 Difference]: Finished difference Result 21121 states and 34229 transitions. [2018-09-10 10:41:10,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:41:10,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 913 [2018-09-10 10:41:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:10,971 INFO L225 Difference]: With dead ends: 21121 [2018-09-10 10:41:10,972 INFO L226 Difference]: Without dead ends: 14126 [2018-09-10 10:41:10,997 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1836 GetRequests, 1820 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2018-09-10 10:41:11,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14126 states. [2018-09-10 10:41:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14126 to 14052. [2018-09-10 10:41:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14052 states. [2018-09-10 10:41:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14052 states to 14052 states and 21218 transitions. [2018-09-10 10:41:11,452 INFO L78 Accepts]: Start accepts. Automaton has 14052 states and 21218 transitions. Word has length 913 [2018-09-10 10:41:11,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:11,453 INFO L480 AbstractCegarLoop]: Abstraction has 14052 states and 21218 transitions. [2018-09-10 10:41:11,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:41:11,453 INFO L276 IsEmpty]: Start isEmpty. Operand 14052 states and 21218 transitions. [2018-09-10 10:41:11,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 922 [2018-09-10 10:41:11,511 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:11,512 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:41:11,512 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:41:11,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1364521891, now seen corresponding path program 1 times [2018-09-10 10:41:11,513 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:11,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:11,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:11,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:11,516 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:11,852 WARN L175 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:41:12,709 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 101 proven. 22 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-10 10:41:12,709 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:12,710 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:41:12,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:12,721 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:13,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:13,159 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 10:41:13,987 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:15,106 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 108 proven. 9 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:41:15,128 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:15,128 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:41:15,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:15,145 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:15,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-09-10 10:41:16,717 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:17,399 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 103 proven. 20 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-10 10:41:17,401 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:41:17,402 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 11 [2018-09-10 10:41:17,402 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:41:17,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-10 10:41:17,404 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-10 10:41:17,404 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 10:41:17,404 INFO L87 Difference]: Start difference. First operand 14052 states and 21218 transitions. Second operand 8 states. [2018-09-10 10:41:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:29,345 INFO L93 Difference]: Finished difference Result 56529 states and 91891 transitions. [2018-09-10 10:41:29,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-10 10:41:29,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 921 [2018-09-10 10:41:29,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:29,535 INFO L225 Difference]: With dead ends: 56529 [2018-09-10 10:41:29,535 INFO L226 Difference]: Without dead ends: 42483 [2018-09-10 10:41:29,621 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3708 GetRequests, 3680 SyntacticMatches, 10 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=113, Invalid=267, Unknown=0, NotChecked=0, Total=380 [2018-09-10 10:41:29,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42483 states. [2018-09-10 10:41:30,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42483 to 42378. [2018-09-10 10:41:30,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42378 states. [2018-09-10 10:41:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42378 states to 42378 states and 61703 transitions. [2018-09-10 10:41:30,601 INFO L78 Accepts]: Start accepts. Automaton has 42378 states and 61703 transitions. Word has length 921 [2018-09-10 10:41:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:30,601 INFO L480 AbstractCegarLoop]: Abstraction has 42378 states and 61703 transitions. [2018-09-10 10:41:30,601 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-10 10:41:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand 42378 states and 61703 transitions. [2018-09-10 10:41:30,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 944 [2018-09-10 10:41:30,741 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:30,742 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:41:30,742 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:41:30,743 INFO L82 PathProgramCache]: Analyzing trace with hash 50889829, now seen corresponding path program 1 times [2018-09-10 10:41:30,743 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:30,744 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:30,744 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:30,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:30,745 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:33,605 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:33,605 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:33,605 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:41:33,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:33,614 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:34,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:34,832 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:35,646 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:35,668 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:41:35,668 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-10 10:41:35,669 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:35,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:41:35,670 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:41:35,670 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:41:35,670 INFO L87 Difference]: Start difference. First operand 42378 states and 61703 transitions. Second operand 3 states. [2018-09-10 10:41:41,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:41,352 INFO L93 Difference]: Finished difference Result 84750 states and 123669 transitions. [2018-09-10 10:41:41,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:41:41,353 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 943 [2018-09-10 10:41:41,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:41,518 INFO L225 Difference]: With dead ends: 84750 [2018-09-10 10:41:41,518 INFO L226 Difference]: Without dead ends: 42378 [2018-09-10 10:41:41,600 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1898 GetRequests, 1886 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:41:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42378 states. [2018-09-10 10:41:42,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42378 to 42378. [2018-09-10 10:41:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42378 states. [2018-09-10 10:41:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42378 states to 42378 states and 56578 transitions. [2018-09-10 10:41:42,783 INFO L78 Accepts]: Start accepts. Automaton has 42378 states and 56578 transitions. Word has length 943 [2018-09-10 10:41:42,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:42,784 INFO L480 AbstractCegarLoop]: Abstraction has 42378 states and 56578 transitions. [2018-09-10 10:41:42,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:41:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 42378 states and 56578 transitions. [2018-09-10 10:41:42,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1064 [2018-09-10 10:41:42,865 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:42,866 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:41:42,867 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:41:42,867 INFO L82 PathProgramCache]: Analyzing trace with hash -1689973782, now seen corresponding path program 1 times [2018-09-10 10:41:42,867 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:42,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:42,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:42,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:42,869 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:43,451 WARN L175 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:41:44,815 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 241 proven. 96 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2018-09-10 10:41:44,816 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:44,816 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:41:44,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:44,831 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:45,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:45,282 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:46,074 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:46,669 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:46,669 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:41:46,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:46,685 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:47,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:48,627 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:48,628 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:49,187 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:41:49,187 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:41:49,188 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:41:49,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:41:49,190 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:41:49,190 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:41:49,190 INFO L87 Difference]: Start difference. First operand 42378 states and 56578 transitions. Second operand 9 states. [2018-09-10 10:41:57,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:57,478 INFO L93 Difference]: Finished difference Result 103094 states and 140711 transitions. [2018-09-10 10:41:57,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 10:41:57,478 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1063 [2018-09-10 10:41:57,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:57,699 INFO L225 Difference]: With dead ends: 103094 [2018-09-10 10:41:57,700 INFO L226 Difference]: Without dead ends: 60722 [2018-09-10 10:41:57,784 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4265 GetRequests, 4244 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2018-09-10 10:41:57,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60722 states. [2018-09-10 10:41:58,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60722 to 60285. [2018-09-10 10:41:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60285 states. [2018-09-10 10:41:58,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60285 states to 60285 states and 76088 transitions. [2018-09-10 10:41:58,817 INFO L78 Accepts]: Start accepts. Automaton has 60285 states and 76088 transitions. Word has length 1063 [2018-09-10 10:41:58,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:58,818 INFO L480 AbstractCegarLoop]: Abstraction has 60285 states and 76088 transitions. [2018-09-10 10:41:58,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:41:58,818 INFO L276 IsEmpty]: Start isEmpty. Operand 60285 states and 76088 transitions. [2018-09-10 10:41:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1067 [2018-09-10 10:41:58,878 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:58,879 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:41:58,879 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:41:58,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1353533692, now seen corresponding path program 1 times [2018-09-10 10:41:58,880 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:58,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:58,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:58,881 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:58,881 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:59,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:01,932 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 121 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:42:01,932 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:01,932 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:42:01,939 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:01,939 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:02,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:02,346 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 10:42:03,390 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 246 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-09-10 10:42:04,191 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:42:04,192 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-10 10:42:04,192 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:42:04,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:42:04,193 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:42:04,193 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:42:04,194 INFO L87 Difference]: Start difference. First operand 60285 states and 76088 transitions. Second operand 3 states. [2018-09-10 10:42:09,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:09,070 INFO L93 Difference]: Finished difference Result 120564 states and 152266 transitions. [2018-09-10 10:42:09,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:42:09,071 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1066 [2018-09-10 10:42:09,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:09,234 INFO L225 Difference]: With dead ends: 120564 [2018-09-10 10:42:09,234 INFO L226 Difference]: Without dead ends: 60285 [2018-09-10 10:42:09,313 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2146 GetRequests, 2133 SyntacticMatches, 6 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:42:09,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60285 states. [2018-09-10 10:42:10,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60285 to 58613. [2018-09-10 10:42:10,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58613 states. [2018-09-10 10:42:10,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58613 states to 58613 states and 70815 transitions. [2018-09-10 10:42:10,248 INFO L78 Accepts]: Start accepts. Automaton has 58613 states and 70815 transitions. Word has length 1066 [2018-09-10 10:42:10,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:10,249 INFO L480 AbstractCegarLoop]: Abstraction has 58613 states and 70815 transitions. [2018-09-10 10:42:10,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:42:10,249 INFO L276 IsEmpty]: Start isEmpty. Operand 58613 states and 70815 transitions. [2018-09-10 10:42:10,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1104 [2018-09-10 10:42:10,303 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:10,304 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:10,304 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:42:10,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1920860741, now seen corresponding path program 1 times [2018-09-10 10:42:10,304 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:10,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:10,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:10,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:10,305 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:10,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 300 proven. 41 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2018-09-10 10:42:11,719 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:11,719 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:42:11,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:11,729 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:12,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:12,171 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:12,615 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 373 proven. 2 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-09-10 10:42:12,615 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 328 proven. 126 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 10:42:13,443 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:13,443 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:42:13,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:13,462 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:14,531 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:15,256 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 373 proven. 2 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2018-09-10 10:42:15,256 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:15,903 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 328 proven. 126 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 10:42:15,906 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:42:15,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:42:15,908 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:42:15,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:42:15,909 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:42:15,909 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:42:15,910 INFO L87 Difference]: Start difference. First operand 58613 states and 70815 transitions. Second operand 9 states. [2018-09-10 10:42:29,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:29,926 INFO L93 Difference]: Finished difference Result 161325 states and 198014 transitions. [2018-09-10 10:42:29,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-10 10:42:29,927 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1103 [2018-09-10 10:42:29,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:30,118 INFO L225 Difference]: With dead ends: 161325 [2018-09-10 10:42:30,118 INFO L226 Difference]: Without dead ends: 81625 [2018-09-10 10:42:30,218 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4460 GetRequests, 4422 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=301, Invalid=1105, Unknown=0, NotChecked=0, Total=1406 [2018-09-10 10:42:30,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81625 states. [2018-09-10 10:42:31,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81625 to 77261. [2018-09-10 10:42:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77261 states. [2018-09-10 10:42:31,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77261 states to 77261 states and 82010 transitions. [2018-09-10 10:42:31,863 INFO L78 Accepts]: Start accepts. Automaton has 77261 states and 82010 transitions. Word has length 1103 [2018-09-10 10:42:31,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:31,863 INFO L480 AbstractCegarLoop]: Abstraction has 77261 states and 82010 transitions. [2018-09-10 10:42:31,864 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:42:31,864 INFO L276 IsEmpty]: Start isEmpty. Operand 77261 states and 82010 transitions. [2018-09-10 10:42:31,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1242 [2018-09-10 10:42:31,941 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:31,942 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:31,942 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:42:31,943 INFO L82 PathProgramCache]: Analyzing trace with hash 648891853, now seen corresponding path program 1 times [2018-09-10 10:42:31,943 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:31,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:31,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:31,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:31,945 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:32,907 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 442 proven. 175 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2018-09-10 10:42:32,907 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:32,907 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:42:32,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:32,916 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:33,452 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 663 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-09-10 10:42:34,567 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:35,393 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 663 proven. 2 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-09-10 10:42:35,415 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:35,415 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:42:35,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:35,434 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:36,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 665 proven. 6 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-09-10 10:42:37,485 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 667 proven. 4 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2018-09-10 10:42:38,437 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:42:38,439 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:42:38,439 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:42:38,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:42:38,441 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:42:38,441 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:42:38,441 INFO L87 Difference]: Start difference. First operand 77261 states and 82010 transitions. Second operand 9 states. [2018-09-10 10:42:52,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:52,593 INFO L93 Difference]: Finished difference Result 193181 states and 209777 transitions. [2018-09-10 10:42:52,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-10 10:42:52,593 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1241 [2018-09-10 10:42:52,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:52,859 INFO L225 Difference]: With dead ends: 193181 [2018-09-10 10:42:52,859 INFO L226 Difference]: Without dead ends: 116761 [2018-09-10 10:42:52,943 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5022 GetRequests, 4979 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 407 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=365, Invalid=1441, Unknown=0, NotChecked=0, Total=1806 [2018-09-10 10:42:53,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116761 states. [2018-09-10 10:42:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116761 to 107971. [2018-09-10 10:42:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107971 states. [2018-09-10 10:42:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107971 states to 107971 states and 113211 transitions. [2018-09-10 10:42:54,773 INFO L78 Accepts]: Start accepts. Automaton has 107971 states and 113211 transitions. Word has length 1241 [2018-09-10 10:42:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:54,774 INFO L480 AbstractCegarLoop]: Abstraction has 107971 states and 113211 transitions. [2018-09-10 10:42:54,774 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:42:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 107971 states and 113211 transitions. [2018-09-10 10:42:54,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1565 [2018-09-10 10:42:54,885 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:54,886 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 10:42:54,887 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:42:54,887 INFO L82 PathProgramCache]: Analyzing trace with hash 177785554, now seen corresponding path program 1 times [2018-09-10 10:42:54,888 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:54,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:54,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:54,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:54,889 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:55,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:58,902 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 738 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-10 10:42:58,902 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:42:58,902 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:42:58,903 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:42:58,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:42:58,904 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:42:58,904 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:42:58,904 INFO L87 Difference]: Start difference. First operand 107971 states and 113211 transitions. Second operand 3 states. [2018-09-10 10:43:02,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:43:02,626 INFO L93 Difference]: Finished difference Result 214204 states and 224617 transitions. [2018-09-10 10:43:02,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:43:02,627 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1564 [2018-09-10 10:43:02,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:43:02,629 INFO L225 Difference]: With dead ends: 214204 [2018-09-10 10:43:02,629 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:43:02,789 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:43:02,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:43:02,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:43:02,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:43:02,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:43:02,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1564 [2018-09-10 10:43:02,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:43:02,791 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:43:02,791 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:43:02,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:43:02,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:43:02,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:43:04,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,778 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,817 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,855 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:04,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,018 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,280 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,335 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,623 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,626 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,628 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,659 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,816 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,904 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:05,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,348 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,416 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,447 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,539 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,650 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,729 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,775 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:06,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,471 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,716 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,769 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,887 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:07,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,073 WARN L175 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 949 DAG size of output: 703 [2018-09-10 10:43:08,136 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,145 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,172 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,175 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,204 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,211 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,239 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,246 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,354 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,430 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,501 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,693 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,873 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,885 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,913 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,917 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,921 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:08,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,177 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,212 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,215 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,272 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,472 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,476 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,667 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,767 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,785 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,787 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,881 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:09,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,328 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,484 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,765 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,956 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:10,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:11,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:11,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:11,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:11,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:11,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:11,124 WARN L175 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 949 DAG size of output: 703 [2018-09-10 10:43:16,734 WARN L175 SmtUtils]: Spent 5.54 s on a formula simplification. DAG size of input: 451 DAG size of output: 103 [2018-09-10 10:43:22,282 WARN L175 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 451 DAG size of output: 103 [2018-09-10 10:43:27,915 WARN L175 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 451 DAG size of output: 103 [2018-09-10 10:43:33,714 WARN L175 SmtUtils]: Spent 5.78 s on a formula simplification. DAG size of input: 451 DAG size of output: 103 Received shutdown request... [2018-09-10 10:43:37,345 WARN L183 SmtUtils]: Removed 33 from assertion stack [2018-09-10 10:43:37,345 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-10 10:43:37,346 INFO L168 Benchmark]: Toolchain (without parser) took 210287.15 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.1 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-10 10:43:37,348 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 10:43:37,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2558.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-09-10 10:43:37,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 168.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-10 10:43:37,350 INFO L168 Benchmark]: Boogie Preprocessor took 693.44 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2018-09-10 10:43:37,351 INFO L168 Benchmark]: RCFGBuilder took 12264.25 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 179.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -74.8 MB). Peak memory consumption was 721.6 MB. Max. memory is 7.1 GB. [2018-09-10 10:43:37,352 INFO L168 Benchmark]: TraceAbstraction took 194595.85 ms. Allocated memory was 2.6 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 139.8 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-10 10:43:37,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2558.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 168.43 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 693.44 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 12264.25 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 179.3 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -74.8 MB). Peak memory consumption was 721.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194595.85 ms. Allocated memory was 2.6 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 139.8 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4769]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 451. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label54_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-43-37-370.csv Completed graceful shutdown