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/Problem19_label25_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-07 13:22:43,156 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-07 13:22:43,158 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-07 13:22:43,175 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-07 13:22:43,175 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-07 13:22:43,176 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-07 13:22:43,177 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-07 13:22:43,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-07 13:22:43,181 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-07 13:22:43,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-07 13:22:43,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-07 13:22:43,183 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-07 13:22:43,184 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-07 13:22:43,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-07 13:22:43,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-07 13:22:43,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-07 13:22:43,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-07 13:22:43,190 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-07 13:22:43,193 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-07 13:22:43,196 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-07 13:22:43,197 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-07 13:22:43,201 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-07 13:22:43,205 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-08-07 13:22:43,206 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-08-07 13:22:43,206 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-08-07 13:22:43,207 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-08-07 13:22:43,208 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-08-07 13:22:43,208 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-08-07 13:22:43,209 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-08-07 13:22:43,210 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-08-07 13:22:43,210 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-08-07 13:22:43,211 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-08-07 13:22:43,211 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-08-07 13:22:43,211 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-08-07 13:22:43,212 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-08-07 13:22:43,213 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-08-07 13:22:43,213 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 [2018-08-07 13:22:43,237 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-07 13:22:43,238 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-07 13:22:43,238 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-07 13:22:43,239 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-07 13:22:43,239 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-07 13:22:43,239 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-07 13:22:43,239 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-07 13:22:43,239 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-08-07 13:22:43,240 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-07 13:22:43,240 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-07 13:22:43,240 INFO L133 SettingsManager]: * Interval Domain=false [2018-08-07 13:22:43,241 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-07 13:22:43,241 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-07 13:22:43,241 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-07 13:22:43,241 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-07 13:22:43,241 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-07 13:22:43,242 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-07 13:22:43,242 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-07 13:22:43,242 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-07 13:22:43,242 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-07 13:22:43,242 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-07 13:22:43,243 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-07 13:22:43,243 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-07 13:22:43,243 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 13:22:43,243 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-07 13:22:43,243 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-07 13:22:43,243 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-07 13:22:43,244 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-08-07 13:22:43,244 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-07 13:22:43,244 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-07 13:22:43,244 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-07 13:22:43,244 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-07 13:22:43,245 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-07 13:22:43,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-07 13:22:43,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-07 13:22:43,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-07 13:22:43,325 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-07 13:22:43,325 INFO L276 PluginConnector]: CDTParser initialized [2018-08-07 13:22:43,326 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label25_true-unreach-call.c [2018-08-07 13:22:43,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61a0d953/c435dcc30e434da6a5cb23e66962b1cf/FLAG19714d0d3 [2018-08-07 13:22:44,250 INFO L276 CDTParser]: Found 1 translation units. [2018-08-07 13:22:44,251 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label25_true-unreach-call.c [2018-08-07 13:22:44,306 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61a0d953/c435dcc30e434da6a5cb23e66962b1cf/FLAG19714d0d3 [2018-08-07 13:22:44,325 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c61a0d953/c435dcc30e434da6a5cb23e66962b1cf [2018-08-07 13:22:44,338 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-07 13:22:44,342 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-07 13:22:44,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-07 13:22:44,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-07 13:22:44,352 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-07 13:22:44,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 01:22:44" (1/1) ... [2018-08-07 13:22:44,357 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7827711d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:44, skipping insertion in model container [2018-08-07 13:22:44,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.08 01:22:44" (1/1) ... [2018-08-07 13:22:44,809 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-07 13:22:46,514 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 13:22:46,534 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-07 13:22:47,786 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-07 13:22:48,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48 WrapperNode [2018-08-07 13:22:48,598 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-07 13:22:48,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-07 13:22:48,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-07 13:22:48,600 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-07 13:22:48,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:48,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:48,922 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-07 13:22:48,923 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-07 13:22:48,923 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-07 13:22:48,923 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-07 13:22:50,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,715 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... [2018-08-07 13:22:50,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-07 13:22:50,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-07 13:22:50,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-07 13:22:50,891 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-07 13:22:50,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-07 13:22:50,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-07 13:22:50,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-07 13:22:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-08-07 13:22:50,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-08-07 13:22:50,964 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-07 13:22:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-08-07 13:22:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-08-07 13:22:50,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-08-07 13:22:50,965 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-07 13:22:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-08-07 13:22:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-07 13:22:50,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-07 13:22:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-07 13:22:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-08-07 13:22:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-07 13:22:50,968 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-07 13:22:50,968 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-07 13:22:50,969 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-08-07 13:23:11,685 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-07 13:23:11,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:23:11 BoogieIcfgContainer [2018-08-07 13:23:11,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-07 13:23:11,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-07 13:23:11,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-07 13:23:11,691 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-07 13:23:11,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.08 01:22:44" (1/3) ... [2018-08-07 13:23:11,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e651321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 01:23:11, skipping insertion in model container [2018-08-07 13:23:11,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.08 01:22:48" (2/3) ... [2018-08-07 13:23:11,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e651321 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 01:23:11, skipping insertion in model container [2018-08-07 13:23:11,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:23:11" (3/3) ... [2018-08-07 13:23:11,695 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label25_true-unreach-call.c [2018-08-07 13:23:11,708 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-07 13:23:11,718 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-07 13:23:11,792 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-07 13:23:11,793 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-07 13:23:11,793 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-07 13:23:11,793 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-07 13:23:11,793 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-07 13:23:11,793 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-07 13:23:11,793 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-07 13:23:11,794 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-07 13:23:11,794 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-07 13:23:11,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-08-07 13:23:11,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-08-07 13:23:11,867 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:23:11,869 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] [2018-08-07 13:23:11,871 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:23:11,878 INFO L82 PathProgramCache]: Analyzing trace with hash -1544823376, now seen corresponding path program 1 times [2018-08-07 13:23:11,880 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:23:11,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:23:11,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:23:11,930 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:23:11,930 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:23:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:23:12,342 WARN L170 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 13:23:12,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:23:12,452 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:23:12,452 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-07 13:23:12,452 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:23:12,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-07 13:23:12,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-07 13:23:12,477 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 13:23:12,480 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-08-07 13:23:30,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:23:30,014 INFO L93 Difference]: Finished difference Result 4999 states and 9420 transitions. [2018-08-07 13:23:30,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-07 13:23:30,017 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2018-08-07 13:23:30,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:23:30,075 INFO L225 Difference]: With dead ends: 4999 [2018-08-07 13:23:30,075 INFO L226 Difference]: Without dead ends: 3219 [2018-08-07 13:23:30,089 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-07 13:23:30,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3219 states. [2018-08-07 13:23:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3219 to 3215. [2018-08-07 13:23:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-08-07 13:23:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5845 transitions. [2018-08-07 13:23:30,308 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5845 transitions. Word has length 43 [2018-08-07 13:23:30,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:23:30,309 INFO L480 AbstractCegarLoop]: Abstraction has 3215 states and 5845 transitions. [2018-08-07 13:23:30,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-07 13:23:30,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5845 transitions. [2018-08-07 13:23:30,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-08-07 13:23:30,316 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:23:30,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:23:30,317 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:23:30,318 INFO L82 PathProgramCache]: Analyzing trace with hash 69258840, now seen corresponding path program 1 times [2018-08-07 13:23:30,318 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:23:30,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:23:30,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:23:30,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:23:30,319 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:23:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:23:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:23:30,845 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:23:30,845 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 13:23:30,845 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:23:30,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 13:23:30,851 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 13:23:30,851 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-08-07 13:23:30,852 INFO L87 Difference]: Start difference. First operand 3215 states and 5845 transitions. Second operand 6 states. [2018-08-07 13:24:06,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:24:06,131 INFO L93 Difference]: Finished difference Result 9676 states and 17669 transitions. [2018-08-07 13:24:06,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-07 13:24:06,132 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-08-07 13:24:06,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:24:06,171 INFO L225 Difference]: With dead ends: 9676 [2018-08-07 13:24:06,172 INFO L226 Difference]: Without dead ends: 6467 [2018-08-07 13:24:06,183 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-08-07 13:24:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6467 states. [2018-08-07 13:24:06,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6467 to 6359. [2018-08-07 13:24:06,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6359 states. [2018-08-07 13:24:06,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6359 states to 6359 states and 9930 transitions. [2018-08-07 13:24:06,352 INFO L78 Accepts]: Start accepts. Automaton has 6359 states and 9930 transitions. Word has length 115 [2018-08-07 13:24:06,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:24:06,352 INFO L480 AbstractCegarLoop]: Abstraction has 6359 states and 9930 transitions. [2018-08-07 13:24:06,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 13:24:06,352 INFO L276 IsEmpty]: Start isEmpty. Operand 6359 states and 9930 transitions. [2018-08-07 13:24:06,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-08-07 13:24:06,357 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:24:06,357 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:24:06,357 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:24:06,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1737852776, now seen corresponding path program 1 times [2018-08-07 13:24:06,359 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:24:06,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:06,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:24:06,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:06,361 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:24:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:24:06,663 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:24:06,664 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:24:06,664 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 13:24:06,664 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:24:06,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 13:24:06,665 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 13:24:06,665 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-08-07 13:24:06,666 INFO L87 Difference]: Start difference. First operand 6359 states and 9930 transitions. Second operand 6 states. [2018-08-07 13:24:31,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:24:31,773 INFO L93 Difference]: Finished difference Result 18715 states and 29399 transitions. [2018-08-07 13:24:31,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 13:24:31,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2018-08-07 13:24:31,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:24:31,838 INFO L225 Difference]: With dead ends: 18715 [2018-08-07 13:24:31,839 INFO L226 Difference]: Without dead ends: 12362 [2018-08-07 13:24:31,862 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-08-07 13:24:31,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12362 states. [2018-08-07 13:24:32,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12362 to 12250. [2018-08-07 13:24:32,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12250 states. [2018-08-07 13:24:32,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12250 states to 12250 states and 17234 transitions. [2018-08-07 13:24:32,171 INFO L78 Accepts]: Start accepts. Automaton has 12250 states and 17234 transitions. Word has length 116 [2018-08-07 13:24:32,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:24:32,172 INFO L480 AbstractCegarLoop]: Abstraction has 12250 states and 17234 transitions. [2018-08-07 13:24:32,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 13:24:32,173 INFO L276 IsEmpty]: Start isEmpty. Operand 12250 states and 17234 transitions. [2018-08-07 13:24:32,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-08-07 13:24:32,177 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:24:32,181 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:24:32,182 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:24:32,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1054545254, now seen corresponding path program 1 times [2018-08-07 13:24:32,182 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:24:32,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:32,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:24:32,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:24:32,184 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:24:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:24:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-08-07 13:24:32,542 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-07 13:24:32,542 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-08-07 13:24:32,543 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:24:32,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-08-07 13:24:32,544 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-08-07 13:24:32,544 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-08-07 13:24:32,544 INFO L87 Difference]: Start difference. First operand 12250 states and 17234 transitions. Second operand 6 states. [2018-08-07 13:25:22,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:25:22,096 INFO L93 Difference]: Finished difference Result 49536 states and 76015 transitions. [2018-08-07 13:25:22,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-07 13:25:22,097 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2018-08-07 13:25:22,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:25:22,300 INFO L225 Difference]: With dead ends: 49536 [2018-08-07 13:25:22,301 INFO L226 Difference]: Without dead ends: 37292 [2018-08-07 13:25:22,374 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-08-07 13:25:22,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37292 states. [2018-08-07 13:25:23,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37292 to 36970. [2018-08-07 13:25:23,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36970 states. [2018-08-07 13:25:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36970 states to 36970 states and 50133 transitions. [2018-08-07 13:25:23,286 INFO L78 Accepts]: Start accepts. Automaton has 36970 states and 50133 transitions. Word has length 133 [2018-08-07 13:25:23,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:25:23,286 INFO L480 AbstractCegarLoop]: Abstraction has 36970 states and 50133 transitions. [2018-08-07 13:25:23,286 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-08-07 13:25:23,287 INFO L276 IsEmpty]: Start isEmpty. Operand 36970 states and 50133 transitions. [2018-08-07 13:25:23,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2018-08-07 13:25:23,294 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:25:23,294 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 13:25:23,294 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:25:23,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1411520828, now seen corresponding path program 1 times [2018-08-07 13:25:23,295 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:25:23,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:23,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:25:23,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:23,296 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:25:23,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:25:23,609 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 72 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:25:23,609 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:25:23,610 INFO L194 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 [2018-08-07 13:25:23,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:25:23,629 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:25:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:25:23,752 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:25:23,967 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-08-07 13:25:23,967 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:25:24,914 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 72 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:25:24,945 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 13:25:24,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-08-07 13:25:24,946 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:25:24,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 13:25:24,947 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 13:25:24,947 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-08-07 13:25:24,947 INFO L87 Difference]: Start difference. First operand 36970 states and 50133 transitions. Second operand 5 states. [2018-08-07 13:25:51,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:25:51,097 INFO L93 Difference]: Finished difference Result 112348 states and 160603 transitions. [2018-08-07 13:25:51,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-07 13:25:51,099 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 198 [2018-08-07 13:25:51,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:25:51,368 INFO L225 Difference]: With dead ends: 112348 [2018-08-07 13:25:51,368 INFO L226 Difference]: Without dead ends: 75384 [2018-08-07 13:25:51,445 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 394 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2018-08-07 13:25:51,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75384 states. [2018-08-07 13:25:53,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75384 to 73808. [2018-08-07 13:25:53,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73808 states. [2018-08-07 13:25:53,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73808 states to 73808 states and 98512 transitions. [2018-08-07 13:25:53,225 INFO L78 Accepts]: Start accepts. Automaton has 73808 states and 98512 transitions. Word has length 198 [2018-08-07 13:25:53,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:25:53,226 INFO L480 AbstractCegarLoop]: Abstraction has 73808 states and 98512 transitions. [2018-08-07 13:25:53,226 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 13:25:53,226 INFO L276 IsEmpty]: Start isEmpty. Operand 73808 states and 98512 transitions. [2018-08-07 13:25:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-08-07 13:25:53,232 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:25:53,233 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-08-07 13:25:53,233 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:25:53,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1504642702, now seen corresponding path program 1 times [2018-08-07 13:25:53,233 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:25:53,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:53,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:25:53,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:25:53,235 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:25:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:25:53,532 WARN L170 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-08-07 13:25:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:25:53,686 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:25:53,687 INFO L194 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 [2018-08-07 13:25:53,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:25:53,696 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:25:53,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:25:53,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:25:54,062 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-08-07 13:25:54,062 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:25:54,241 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 72 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-08-07 13:25:54,262 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-08-07 13:25:54,262 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-08-07 13:25:54,262 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-07 13:25:54,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-08-07 13:25:54,263 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-08-07 13:25:54,265 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-08-07 13:25:54,265 INFO L87 Difference]: Start difference. First operand 73808 states and 98512 transitions. Second operand 5 states. [2018-08-07 13:26:14,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-07 13:26:14,128 INFO L93 Difference]: Finished difference Result 167830 states and 238420 transitions. [2018-08-07 13:26:14,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-08-07 13:26:14,129 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-08-07 13:26:14,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-07 13:26:14,464 INFO L225 Difference]: With dead ends: 167830 [2018-08-07 13:26:14,464 INFO L226 Difference]: Without dead ends: 94028 [2018-08-07 13:26:14,612 INFO L603 BasicCegarLoop]: 0 DeclaredPredicates, 437 GetRequests, 422 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-08-07 13:26:14,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94028 states. [2018-08-07 13:26:16,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94028 to 92636. [2018-08-07 13:26:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92636 states. [2018-08-07 13:26:17,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92636 states to 92636 states and 121899 transitions. [2018-08-07 13:26:17,187 INFO L78 Accepts]: Start accepts. Automaton has 92636 states and 121899 transitions. Word has length 214 [2018-08-07 13:26:17,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-07 13:26:17,188 INFO L480 AbstractCegarLoop]: Abstraction has 92636 states and 121899 transitions. [2018-08-07 13:26:17,188 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-08-07 13:26:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 92636 states and 121899 transitions. [2018-08-07 13:26:17,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 941 [2018-08-07 13:26:17,228 INFO L368 BasicCegarLoop]: Found error trace [2018-08-07 13:26:17,230 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-08-07 13:26:17,230 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-07 13:26:17,230 INFO L82 PathProgramCache]: Analyzing trace with hash 682097292, now seen corresponding path program 1 times [2018-08-07 13:26:17,230 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-08-07 13:26:17,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:26:17,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:26:17,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-08-07 13:26:17,232 INFO L292 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-08-07 13:26:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:26:18,275 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 323 proven. 89 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 13:26:18,275 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:26:18,275 INFO L194 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 [2018-08-07 13:26:18,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:26:18,284 INFO L292 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:26:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:26:18,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:26:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 461 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-08-07 13:26:19,774 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:26:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 323 proven. 89 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 13:26:20,353 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-08-07 13:26:20,354 INFO L194 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 [2018-08-07 13:26:20,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-08-07 13:26:20,369 INFO L292 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-08-07 13:26:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-08-07 13:26:21,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-08-07 13:26:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 461 proven. 2 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2018-08-07 13:26:22,660 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-08-07 13:26:23,249 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 323 proven. 89 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-08-07 13:26:23,251 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-08-07 13:26:23,252 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-08-07 13:26:23,252 INFO L255 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-08-07 13:26:23,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-07 13:26:23,254 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-07 13:26:23,254 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2018-08-07 13:26:23,255 INFO L87 Difference]: Start difference. First operand 92636 states and 121899 transitions. Second operand 9 states. Received shutdown request... [2018-08-07 13:26:40,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-08-07 13:26:40,260 WARN L549 AbstractCegarLoop]: Verification canceled [2018-08-07 13:26:40,265 WARN L202 ceAbstractionStarter]: Timeout [2018-08-07 13:26:40,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 01:26:40 BoogieIcfgContainer [2018-08-07 13:26:40,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-07 13:26:40,266 INFO L168 Benchmark]: Toolchain (without parser) took 235926.70 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 329.1 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-08-07 13:26:40,267 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-07 13:26:40,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4255.60 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 224.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -141.5 MB). Peak memory consumption was 490.0 MB. Max. memory is 7.1 GB. [2018-08-07 13:26:40,268 INFO L168 Benchmark]: Boogie Procedure Inliner took 323.34 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. [2018-08-07 13:26:40,269 INFO L168 Benchmark]: Boogie Preprocessor took 1967.24 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 749.7 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -760.8 MB). Peak memory consumption was 126.0 MB. Max. memory is 7.1 GB. [2018-08-07 13:26:40,270 INFO L168 Benchmark]: RCFGBuilder took 20796.10 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 334.5 MB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 182.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-08-07 13:26:40,271 INFO L168 Benchmark]: TraceAbstraction took 208577.63 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 756.0 MB). Free memory was 2.1 GB in the beginning and 1.1 GB in the end (delta: 984.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2018-08-07 13:26:40,276 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 4255.60 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 224.9 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -141.5 MB). Peak memory consumption was 490.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 323.34 ms. Allocated memory is still 1.8 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 64.8 MB). Peak memory consumption was 64.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1967.24 ms. Allocated memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: 749.7 MB). Free memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: -760.8 MB). Peak memory consumption was 126.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 20796.10 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 334.5 MB). Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 182.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 208577.63 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 756.0 MB). Free memory was 2.1 GB in the beginning and 1.1 GB in the end (delta: 984.3 MB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was constructing difference of abstraction (92636states) and FLOYD_HOARE automaton (currently 14 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (48814 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 208.4s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 191.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3605 SDtfs, 43076 SDslu, 5100 SDs, 0 SdLazy, 69790 SolverSat, 16345 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 168.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4654 GetRequests, 4582 SyntacticMatches, 9 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92636occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 3514 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 8.0s InterpolantComputationTime, 4051 NumberOfCodeBlocks, 4051 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 6328 ConstructedInterpolants, 0 QuantifiedInterpolants, 8260916 SizeOfPredicates, 4 NumberOfNonLiveVariables, 3330 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 15 InterpolantComputations, 6 PerfectInterpolantSequences, 2932/3469 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label25_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-07_13-26-40-291.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label25_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-07_13-26-40-291.csv Completed graceful shutdown