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_label59_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:41:03,849 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:41:03,851 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:41:03,863 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:41:03,864 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:41:03,865 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:41:03,866 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:41:03,868 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:41:03,870 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:41:03,870 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:41:03,871 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:41:03,872 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:41:03,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:41:03,874 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:41:03,875 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:41:03,876 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:41:03,876 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:41:03,878 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:41:03,880 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:41:03,882 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:41:03,883 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:41:03,884 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:41:03,887 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:41:03,887 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:41:03,887 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:41:03,888 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:41:03,889 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:41:03,890 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:41:03,891 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:41:03,892 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:41:03,893 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:41:03,893 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:41:03,897 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:41:03,897 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:41:03,898 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:41:03,899 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:41:03,899 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 10:41:03,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:41:03,930 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:41:03,932 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:41:03,932 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:41:03,932 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:41:03,932 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:41:03,932 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:41:03,933 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:41:03,933 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:41:03,933 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:41:03,933 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:41:03,935 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:41:03,935 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:41:03,935 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:41:03,935 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:41:03,935 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:41:03,935 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:41:03,936 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:41:03,936 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:41:03,936 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:41:03,936 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:41:03,937 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:41:03,937 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:41:03,938 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:41:03,938 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:41:03,938 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:41:03,938 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:41:03,938 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:41:03,939 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:41:03,939 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:41:03,939 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:41:03,939 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:41:03,940 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:41:04,011 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:41:04,028 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:41:04,033 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:41:04,035 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:41:04,035 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:41:04,036 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label59_true-unreach-call.c [2018-09-10 10:41:04,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca90c33a7/800d272db95e45c1b0ab168d72ab556c/FLAG6535c179f [2018-09-10 10:41:04,896 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:41:04,897 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label59_true-unreach-call.c [2018-09-10 10:41:04,948 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca90c33a7/800d272db95e45c1b0ab168d72ab556c/FLAG6535c179f [2018-09-10 10:41:04,970 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca90c33a7/800d272db95e45c1b0ab168d72ab556c [2018-09-10 10:41:04,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:41:04,986 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:41:04,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:41:04,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:41:04,999 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:41:05,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:41:04" (1/1) ... [2018-09-10 10:41:05,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a64aa8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:05, skipping insertion in model container [2018-09-10 10:41:05,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:41:04" (1/1) ... [2018-09-10 10:41:05,409 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:41:06,622 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:41:06,642 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:41:07,350 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:41:07,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07 WrapperNode [2018-09-10 10:41:07,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:41:07,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:41:07,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:41:07,500 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:41:07,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:07,578 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:07,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:41:07,641 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:41:07,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:41:07,642 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:41:08,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (1/1) ... [2018-09-10 10:41:08,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:41:08,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:41:08,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:41:08,258 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:41:08,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (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 10:41:08,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:41:08,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:41:08,337 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 10:41:08,337 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 10:41:08,337 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 10:41:08,337 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 10:41:08,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:41:08,337 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:41:08,338 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 10:41:08,338 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 10:41:08,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:41:08,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:41:08,338 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 10:41:08,338 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 10:41:20,722 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:41:20,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:41:20 BoogieIcfgContainer [2018-09-10 10:41:20,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:41:20,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:41:20,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:41:20,727 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:41:20,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:41:04" (1/3) ... [2018-09-10 10:41:20,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78012530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:41:20, skipping insertion in model container [2018-09-10 10:41:20,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:41:07" (2/3) ... [2018-09-10 10:41:20,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78012530 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:41:20, skipping insertion in model container [2018-09-10 10:41:20,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:41:20" (3/3) ... [2018-09-10 10:41:20,731 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label59_true-unreach-call.c [2018-09-10 10:41:20,741 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:41:20,751 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:41:20,814 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:41:20,815 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:41:20,815 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:41:20,815 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:41:20,815 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:41:20,816 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:41:20,816 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:41:20,816 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:41:20,816 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:41:20,865 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-10 10:41:20,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 804 [2018-09-10 10:41:20,925 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:20,927 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] [2018-09-10 10:41:20,928 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 10:41:20,935 INFO L82 PathProgramCache]: Analyzing trace with hash 520317084, now seen corresponding path program 1 times [2018-09-10 10:41:20,938 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:20,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:20,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:20,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:20,993 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:21,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:23,176 WARN L175 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:41:24,063 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 10:41:24,066 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:41:24,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:41:24,067 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:24,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:41:24,095 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:41:24,096 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:41:24,098 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-10 10:41:31,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:31,543 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-10 10:41:31,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:41:31,546 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 803 [2018-09-10 10:41:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:31,585 INFO L225 Difference]: With dead ends: 2647 [2018-09-10 10:41:31,585 INFO L226 Difference]: Without dead ends: 1738 [2018-09-10 10:41:31,596 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:41:31,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-10 10:41:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-10 10:41:31,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-10 10:41:31,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3286 transitions. [2018-09-10 10:41:31,770 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3286 transitions. Word has length 803 [2018-09-10 10:41:31,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:31,776 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3286 transitions. [2018-09-10 10:41:31,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:41:31,777 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3286 transitions. [2018-09-10 10:41:31,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 813 [2018-09-10 10:41:31,809 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:31,810 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] [2018-09-10 10:41:31,811 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 10:41:31,811 INFO L82 PathProgramCache]: Analyzing trace with hash 730593881, now seen corresponding path program 1 times [2018-09-10 10:41:31,812 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:31,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:31,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:31,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:31,813 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:32,735 WARN L175 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:41:33,974 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 10:41:33,974 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:41:33,975 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:41:33,975 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:33,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:41:33,978 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:41:33,978 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:41:33,979 INFO L87 Difference]: Start difference. First operand 1738 states and 3286 transitions. Second operand 3 states. [2018-09-10 10:41:41,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:41,127 INFO L93 Difference]: Finished difference Result 5140 states and 9845 transitions. [2018-09-10 10:41:41,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:41:41,132 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 812 [2018-09-10 10:41:41,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:41,157 INFO L225 Difference]: With dead ends: 5140 [2018-09-10 10:41:41,158 INFO L226 Difference]: Without dead ends: 3408 [2018-09-10 10:41:41,165 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 4 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 10:41:41,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2018-09-10 10:41:41,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3408. [2018-09-10 10:41:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3408 states. [2018-09-10 10:41:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 6080 transitions. [2018-09-10 10:41:41,289 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 6080 transitions. Word has length 812 [2018-09-10 10:41:41,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:41,292 INFO L480 AbstractCegarLoop]: Abstraction has 3408 states and 6080 transitions. [2018-09-10 10:41:41,292 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:41:41,292 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 6080 transitions. [2018-09-10 10:41:41,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2018-09-10 10:41:41,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:41,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:41,313 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 10:41:41,314 INFO L82 PathProgramCache]: Analyzing trace with hash 944753661, now seen corresponding path program 1 times [2018-09-10 10:41:41,314 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:41,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:41,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:41,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:41,316 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:42,791 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:41:42,792 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 10:41:42,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:42,809 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:41:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:43,456 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:41:44,505 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:44,505 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:41:45,755 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:45,787 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:41:45,788 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-10 10:41:45,788 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:45,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:41:45,790 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:41:45,791 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:41:45,791 INFO L87 Difference]: Start difference. First operand 3408 states and 6080 transitions. Second operand 3 states. [2018-09-10 10:41:52,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:41:52,256 INFO L93 Difference]: Finished difference Result 10180 states and 18378 transitions. [2018-09-10 10:41:52,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:41:52,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 830 [2018-09-10 10:41:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:41:52,307 INFO L225 Difference]: With dead ends: 10180 [2018-09-10 10:41:52,307 INFO L226 Difference]: Without dead ends: 6778 [2018-09-10 10:41:52,319 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1672 GetRequests, 1660 SyntacticMatches, 6 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:41:52,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2018-09-10 10:41:52,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 6778. [2018-09-10 10:41:52,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6778 states. [2018-09-10 10:41:52,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 11522 transitions. [2018-09-10 10:41:52,523 INFO L78 Accepts]: Start accepts. Automaton has 6778 states and 11522 transitions. Word has length 830 [2018-09-10 10:41:52,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:41:52,525 INFO L480 AbstractCegarLoop]: Abstraction has 6778 states and 11522 transitions. [2018-09-10 10:41:52,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:41:52,525 INFO L276 IsEmpty]: Start isEmpty. Operand 6778 states and 11522 transitions. [2018-09-10 10:41:52,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 855 [2018-09-10 10:41:52,555 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:41:52,556 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:41:52,556 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 10:41:52,557 INFO L82 PathProgramCache]: Analyzing trace with hash -855757267, now seen corresponding path program 1 times [2018-09-10 10:41:52,557 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:41:52,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:52,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:41:52,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:41:52,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:41:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:41:52,931 WARN L175 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:41:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:41:53,948 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:41:53,948 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 10:41:53,951 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:41:53,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:41:53,953 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:41:53,953 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:41:53,954 INFO L87 Difference]: Start difference. First operand 6778 states and 11522 transitions. Second operand 6 states. [2018-09-10 10:42:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:03,652 INFO L93 Difference]: Finished difference Result 20555 states and 36224 transitions. [2018-09-10 10:42:03,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:42:03,654 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 854 [2018-09-10 10:42:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:03,751 INFO L225 Difference]: With dead ends: 20555 [2018-09-10 10:42:03,751 INFO L226 Difference]: Without dead ends: 13783 [2018-09-10 10:42:03,783 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:42:03,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13783 states. [2018-09-10 10:42:04,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13783 to 13708. [2018-09-10 10:42:04,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13708 states. [2018-09-10 10:42:04,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13708 states to 13708 states and 22296 transitions. [2018-09-10 10:42:04,210 INFO L78 Accepts]: Start accepts. Automaton has 13708 states and 22296 transitions. Word has length 854 [2018-09-10 10:42:04,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:04,210 INFO L480 AbstractCegarLoop]: Abstraction has 13708 states and 22296 transitions. [2018-09-10 10:42:04,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:42:04,211 INFO L276 IsEmpty]: Start isEmpty. Operand 13708 states and 22296 transitions. [2018-09-10 10:42:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2018-09-10 10:42:04,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:04,273 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, 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:04,273 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 10:42:04,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1926268552, now seen corresponding path program 1 times [2018-09-10 10:42:04,274 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:04,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:04,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:04,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:04,276 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:04,637 WARN L175 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:42:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:42:05,448 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:05,449 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 10:42:05,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:05,462 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:05,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:06,571 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-10 10:42:06,572 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:07,153 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:42:07,175 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 10:42:07,176 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-10 10:42:07,176 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:42:07,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:42:07,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:42:07,177 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-10 10:42:07,177 INFO L87 Difference]: Start difference. First operand 13708 states and 22296 transitions. Second operand 5 states. [2018-09-10 10:42:15,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:15,695 INFO L93 Difference]: Finished difference Result 41681 states and 70777 transitions. [2018-09-10 10:42:15,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 10:42:15,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 886 [2018-09-10 10:42:15,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:15,815 INFO L225 Difference]: With dead ends: 41681 [2018-09-10 10:42:15,815 INFO L226 Difference]: Without dead ends: 27979 [2018-09-10 10:42:15,869 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1779 GetRequests, 1767 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-10 10:42:15,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27979 states. [2018-09-10 10:42:16,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27979 to 27806. [2018-09-10 10:42:16,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27806 states. [2018-09-10 10:42:16,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27806 states to 27806 states and 41231 transitions. [2018-09-10 10:42:16,451 INFO L78 Accepts]: Start accepts. Automaton has 27806 states and 41231 transitions. Word has length 886 [2018-09-10 10:42:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:16,451 INFO L480 AbstractCegarLoop]: Abstraction has 27806 states and 41231 transitions. [2018-09-10 10:42:16,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:42:16,452 INFO L276 IsEmpty]: Start isEmpty. Operand 27806 states and 41231 transitions. [2018-09-10 10:42:16,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 912 [2018-09-10 10:42:16,545 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:16,546 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:42:16,547 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 10:42:16,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1590855162, now seen corresponding path program 1 times [2018-09-10 10:42:16,547 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:16,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:16,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:16,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:16,549 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:16,872 WARN L175 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:42:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-10 10:42:17,829 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:17,829 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 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:42:17,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:17,838 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:18,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:18,217 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:18,524 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-09-10 10:42:18,524 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:18,984 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-10 10:42:19,175 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:19,175 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:42:19,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:19,191 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:20,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:20,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2018-09-10 10:42:20,513 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:21,012 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 113 proven. 28 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-10 10:42:21,015 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:42:21,016 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:42:21,017 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:42:21,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:42:21,018 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:42:21,019 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:42:21,019 INFO L87 Difference]: Start difference. First operand 27806 states and 41231 transitions. Second operand 9 states. [2018-09-10 10:42:39,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:42:39,934 INFO L93 Difference]: Finished difference Result 90834 states and 148313 transitions. [2018-09-10 10:42:39,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-10 10:42:39,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 911 [2018-09-10 10:42:39,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:42:40,327 INFO L225 Difference]: With dead ends: 90834 [2018-09-10 10:42:40,327 INFO L226 Difference]: Without dead ends: 63034 [2018-09-10 10:42:40,462 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3698 GetRequests, 3658 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 354 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=331, Invalid=1229, Unknown=0, NotChecked=0, Total=1560 [2018-09-10 10:42:40,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63034 states. [2018-09-10 10:42:42,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63034 to 61942. [2018-09-10 10:42:42,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61942 states. [2018-09-10 10:42:42,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61942 states to 61942 states and 83465 transitions. [2018-09-10 10:42:42,169 INFO L78 Accepts]: Start accepts. Automaton has 61942 states and 83465 transitions. Word has length 911 [2018-09-10 10:42:42,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:42:42,169 INFO L480 AbstractCegarLoop]: Abstraction has 61942 states and 83465 transitions. [2018-09-10 10:42:42,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:42:42,169 INFO L276 IsEmpty]: Start isEmpty. Operand 61942 states and 83465 transitions. [2018-09-10 10:42:42,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2018-09-10 10:42:42,285 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:42:42,286 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:42:42,286 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 10:42:42,287 INFO L82 PathProgramCache]: Analyzing trace with hash -176542231, now seen corresponding path program 1 times [2018-09-10 10:42:42,287 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:42:42,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:42,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:42,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:42:42,288 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:42:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:43,453 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 215 proven. 66 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:42:43,454 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:43,454 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) [2018-09-10 10:42:43,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:43,468 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:42:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:43,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 185 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-10 10:42:44,548 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:45,058 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 215 proven. 66 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:42:45,080 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:42:45,080 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 10:42:45,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:42:45,097 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:42:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:42:46,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:42:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 129 trivial. 0 not checked. [2018-09-10 10:42:46,812 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:42:47,334 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 200 proven. 77 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-10 10:42:47,337 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:42:47,338 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:42:47,338 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:42:47,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:42:47,340 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:42:47,340 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:42:47,340 INFO L87 Difference]: Start difference. First operand 61942 states and 83465 transitions. Second operand 9 states. [2018-09-10 10:43:01,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:43:01,542 INFO L93 Difference]: Finished difference Result 123492 states and 173304 transitions. [2018-09-10 10:43:01,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-10 10:43:01,542 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1004 [2018-09-10 10:43:01,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:43:01,766 INFO L225 Difference]: With dead ends: 123492 [2018-09-10 10:43:01,767 INFO L226 Difference]: Without dead ends: 61556 [2018-09-10 10:43:01,919 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4070 GetRequests, 4030 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=333, Invalid=1227, Unknown=0, NotChecked=0, Total=1560 [2018-09-10 10:43:01,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61556 states. [2018-09-10 10:43:03,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61556 to 60784. [2018-09-10 10:43:03,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60784 states. [2018-09-10 10:43:03,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60784 states to 60784 states and 74666 transitions. [2018-09-10 10:43:03,169 INFO L78 Accepts]: Start accepts. Automaton has 60784 states and 74666 transitions. Word has length 1004 [2018-09-10 10:43:03,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:43:03,169 INFO L480 AbstractCegarLoop]: Abstraction has 60784 states and 74666 transitions. [2018-09-10 10:43:03,169 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:43:03,170 INFO L276 IsEmpty]: Start isEmpty. Operand 60784 states and 74666 transitions. [2018-09-10 10:43:03,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1012 [2018-09-10 10:43:03,250 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:43:03,251 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:43:03,252 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 10:43:03,252 INFO L82 PathProgramCache]: Analyzing trace with hash -843331717, now seen corresponding path program 1 times [2018-09-10 10:43:03,252 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:43:03,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:03,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:03,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:43:03,254 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:43:03,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:03,607 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-09-10 10:43:03,946 WARN L175 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-10 10:43:04,198 WARN L175 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-10 10:43:06,075 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 205 proven. 103 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 10:43:06,075 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:43:06,075 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 10:43:06,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:06,083 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:43:06,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:06,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:43:07,300 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-10 10:43:07,300 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:43:08,165 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 222 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:43:08,187 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:43:08,187 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 9 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 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:43:08,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:43:08,202 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:43:09,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:43:09,143 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:43:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-10 10:43:09,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:43:10,534 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 222 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:43:10,538 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:43:10,539 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 18 [2018-09-10 10:43:10,540 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:43:10,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-10 10:43:10,541 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-10 10:43:10,541 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-10 10:43:10,541 INFO L87 Difference]: Start difference. First operand 60784 states and 74666 transitions. Second operand 14 states. [2018-09-10 10:43:55,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:43:55,534 INFO L93 Difference]: Finished difference Result 235179 states and 315795 transitions. [2018-09-10 10:43:55,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-09-10 10:43:55,535 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1011 [2018-09-10 10:43:55,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:43:55,535 INFO L225 Difference]: With dead ends: 235179 [2018-09-10 10:43:55,535 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:43:55,798 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4152 GetRequests, 4082 SyntacticMatches, 6 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1434 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=843, Invalid=3447, Unknown=0, NotChecked=0, Total=4290 [2018-09-10 10:43:55,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:43:55,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:43:55,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:43:55,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:43:55,800 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1011 [2018-09-10 10:43:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:43:55,801 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:43:55,801 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-10 10:43:55,801 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:43:55,801 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:43:55,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:43:59,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,099 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,144 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,299 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,300 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,458 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,551 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,561 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,827 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:43:59,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,080 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,083 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,262 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,713 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:00,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:01,112 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:01,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:01,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:01,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:01,500 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:01,648 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:02,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:02,149 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:02,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:02,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:03,066 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:03,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:03,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:03,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:03,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:03,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:04,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:04,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:04,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:04,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:04,674 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:05,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:05,187 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:05,456 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:05,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:05,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:05,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:06,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:06,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:06,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:06,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:07,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:08,582 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:08,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:08,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:09,120 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:09,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:09,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:09,902 WARN L175 SmtUtils]: Spent 11.02 s on a formula simplification. DAG size of input: 1420 DAG size of output: 1062 [2018-09-10 10:44:10,001 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,022 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,055 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,103 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,165 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,208 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,209 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,255 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,261 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,401 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,812 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:10,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,287 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:11,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:12,218 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:12,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:12,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:12,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:13,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:13,161 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:13,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:13,406 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:13,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:14,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:14,251 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:14,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:14,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:15,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:15,169 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:15,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:15,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:15,819 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:15,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:16,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:16,597 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:16,773 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:16,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:17,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:18,797 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:18,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:19,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:19,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:19,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:19,652 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:44:20,072 WARN L175 SmtUtils]: Spent 10.17 s on a formula simplification. DAG size of input: 1420 DAG size of output: 1062 [2018-09-10 10:44:22,528 WARN L175 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 [2018-09-10 10:44:24,836 WARN L175 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 [2018-09-10 10:44:27,309 WARN L175 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 [2018-09-10 10:44:29,480 WARN L175 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 [2018-09-10 10:44:31,619 WARN L175 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 [2018-09-10 10:44:33,868 WARN L175 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 [2018-09-10 10:44:36,025 WARN L175 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 463 DAG size of output: 46 Received shutdown request... [2018-09-10 10:44:44,861 WARN L183 SmtUtils]: Removed 351 from assertion stack [2018-09-10 10:44:44,861 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 10:44:44,863 INFO L168 Benchmark]: Toolchain (without parser) took 219879.35 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.2 GB in the end (delta: -1.8 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-10 10:44:44,864 INFO L168 Benchmark]: CDTParser took 0.21 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 10:44:44,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2511.74 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 10:44:44,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 141.10 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 10:44:44,866 INFO L168 Benchmark]: Boogie Preprocessor took 616.42 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 843.1 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 10:44:44,867 INFO L168 Benchmark]: RCFGBuilder took 12465.01 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 156.8 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -11.6 MB). Peak memory consumption was 692.8 MB. Max. memory is 7.1 GB. [2018-09-10 10:44:44,868 INFO L168 Benchmark]: TraceAbstraction took 204137.93 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: -962.1 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-10 10:44:44,873 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 2511.74 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 141.10 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 616.42 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 843.1 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 12465.01 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 156.8 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -11.6 MB). Peak memory consumption was 692.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204137.93 ms. Allocated memory was 2.5 GB in the beginning and 4.1 GB in the end (delta: 1.6 GB). Free memory was 2.3 GB in the beginning and 3.2 GB in the end (delta: -962.1 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: 4727]: 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 1027. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label59_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-44-44-885.csv Completed graceful shutdown