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/Problem12_label56_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:50:00,983 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:50:00,985 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:50:00,999 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:50:01,000 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:50:01,001 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:50:01,002 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:50:01,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:50:01,006 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:50:01,007 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:50:01,008 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:50:01,008 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:50:01,009 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:50:01,010 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:50:01,011 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:50:01,012 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:50:01,013 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:50:01,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:50:01,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:50:01,018 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:50:01,019 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:50:01,021 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:50:01,023 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:50:01,024 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:50:01,024 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:50:01,025 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:50:01,026 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:50:01,027 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:50:01,028 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:50:01,029 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:50:01,030 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:50:01,030 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:50:01,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:50:01,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:50:01,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:50:01,033 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:50:01,033 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 11:50:01,049 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:50:01,050 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:50:01,051 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:50:01,051 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:50:01,051 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:50:01,051 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:50:01,051 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:50:01,052 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:50:01,052 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:50:01,052 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:50:01,052 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:50:01,053 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:50:01,053 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:50:01,053 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:50:01,054 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:50:01,054 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:50:01,054 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:50:01,054 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:50:01,054 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:50:01,055 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:50:01,055 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:50:01,055 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:50:01,055 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:50:01,055 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:50:01,056 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:50:01,056 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:50:01,056 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:50:01,056 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:50:01,056 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:50:01,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:50:01,057 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:50:01,057 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:50:01,057 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:50:01,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:50:01,150 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:50:01,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:50:01,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:50:01,159 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:50:01,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c [2018-09-10 11:50:01,522 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b09cdb7/7509d743b0434589ab0cddd086939c6d/FLAG025d2125f [2018-09-10 11:50:01,985 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:50:01,986 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label56_true-unreach-call.c [2018-09-10 11:50:02,024 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b09cdb7/7509d743b0434589ab0cddd086939c6d/FLAG025d2125f [2018-09-10 11:50:02,043 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4b09cdb7/7509d743b0434589ab0cddd086939c6d [2018-09-10 11:50:02,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:50:02,059 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:50:02,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:50:02,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:50:02,067 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:50:02,069 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:50:02" (1/1) ... [2018-09-10 11:50:02,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e5cc7b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:02, skipping insertion in model container [2018-09-10 11:50:02,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:50:02" (1/1) ... [2018-09-10 11:50:02,483 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:50:03,513 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:50:03,535 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:50:04,513 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:50:04,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04 WrapperNode [2018-09-10 11:50:04,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:50:04,793 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:50:04,793 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:50:04,793 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:50:04,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:04,903 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:50:05,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:50:05,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:50:05,053 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:50:05,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,790 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (1/1) ... [2018-09-10 11:50:05,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:50:05,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:50:05,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:50:05,948 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:50:05,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (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 11:50:06,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:50:06,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:50:06,018 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 11:50:06,018 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 11:50:06,018 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 11:50:06,018 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 11:50:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:50:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:50:06,019 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 11:50:06,019 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 11:50:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:50:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:50:06,020 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 11:50:06,020 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 11:50:19,238 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:50:19,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:50:19 BoogieIcfgContainer [2018-09-10 11:50:19,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:50:19,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:50:19,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:50:19,243 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:50:19,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:50:02" (1/3) ... [2018-09-10 11:50:19,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e7f3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:50:19, skipping insertion in model container [2018-09-10 11:50:19,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:50:04" (2/3) ... [2018-09-10 11:50:19,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e7f3a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:50:19, skipping insertion in model container [2018-09-10 11:50:19,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:50:19" (3/3) ... [2018-09-10 11:50:19,247 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label56_true-unreach-call.c [2018-09-10 11:50:19,255 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:50:19,265 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:50:19,326 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:50:19,327 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:50:19,327 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:50:19,327 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:50:19,328 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:50:19,328 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:50:19,328 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:50:19,328 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:50:19,328 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:50:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-09-10 11:50:19,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-09-10 11:50:19,381 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:50:19,382 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] [2018-09-10 11:50:19,383 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]=== [2018-09-10 11:50:19,388 INFO L82 PathProgramCache]: Analyzing trace with hash -879322223, now seen corresponding path program 1 times [2018-09-10 11:50:19,390 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:50:19,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:19,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:19,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:19,447 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:50:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:19,870 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 11:50:19,873 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:50:19,873 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:50:19,873 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:50:19,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:50:19,895 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:50:19,896 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:50:19,898 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 4 states. [2018-09-10 11:50:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:50:32,943 INFO L93 Difference]: Finished difference Result 3234 states and 6255 transitions. [2018-09-10 11:50:32,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:50:32,946 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 63 [2018-09-10 11:50:32,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:50:32,993 INFO L225 Difference]: With dead ends: 3234 [2018-09-10 11:50:32,994 INFO L226 Difference]: Without dead ends: 2388 [2018-09-10 11:50:33,009 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:50:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2388 states. [2018-09-10 11:50:33,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2388 to 2388. [2018-09-10 11:50:33,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2018-09-10 11:50:33,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 4022 transitions. [2018-09-10 11:50:33,199 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 4022 transitions. Word has length 63 [2018-09-10 11:50:33,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:50:33,200 INFO L480 AbstractCegarLoop]: Abstraction has 2388 states and 4022 transitions. [2018-09-10 11:50:33,200 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:50:33,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 4022 transitions. [2018-09-10 11:50:33,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2018-09-10 11:50:33,216 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:50:33,217 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:50:33,217 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]=== [2018-09-10 11:50:33,218 INFO L82 PathProgramCache]: Analyzing trace with hash -334404098, now seen corresponding path program 1 times [2018-09-10 11:50:33,218 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:50:33,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:33,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:33,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:33,221 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:50:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:33,603 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:50:33,603 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:50:33,604 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 11:50:33,604 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:50:33,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:50:33,606 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:50:33,606 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:50:33,607 INFO L87 Difference]: Start difference. First operand 2388 states and 4022 transitions. Second operand 6 states. [2018-09-10 11:50:48,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:50:48,170 INFO L93 Difference]: Finished difference Result 9453 states and 16261 transitions. [2018-09-10 11:50:48,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:50:48,173 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 163 [2018-09-10 11:50:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:50:48,222 INFO L225 Difference]: With dead ends: 9453 [2018-09-10 11:50:48,222 INFO L226 Difference]: Without dead ends: 7071 [2018-09-10 11:50:48,235 INFO L604 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 [2018-09-10 11:50:48,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7071 states. [2018-09-10 11:50:48,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7071 to 7023. [2018-09-10 11:50:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7023 states. [2018-09-10 11:50:48,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7023 states to 7023 states and 10536 transitions. [2018-09-10 11:50:48,474 INFO L78 Accepts]: Start accepts. Automaton has 7023 states and 10536 transitions. Word has length 163 [2018-09-10 11:50:48,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:50:48,476 INFO L480 AbstractCegarLoop]: Abstraction has 7023 states and 10536 transitions. [2018-09-10 11:50:48,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:50:48,476 INFO L276 IsEmpty]: Start isEmpty. Operand 7023 states and 10536 transitions. [2018-09-10 11:50:48,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-09-10 11:50:48,488 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:50:48,488 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-10 11:50:48,492 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]=== [2018-09-10 11:50:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1214995706, now seen corresponding path program 1 times [2018-09-10 11:50:48,493 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:50:48,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:48,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:48,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:50:48,494 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:50:48,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:48,891 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 112 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:50:48,891 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:50:48,892 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 11:50:48,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:50:48,909 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:50:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:50:49,191 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:50:49,560 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 11:50:49,560 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:50:49,881 WARN L175 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 11:50:50,646 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 112 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:50:50,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:50:50,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-10 11:50:50,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:50:50,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:50:50,684 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:50:50,684 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:50:50,685 INFO L87 Difference]: Start difference. First operand 7023 states and 10536 transitions. Second operand 5 states. [2018-09-10 11:51:01,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:51:01,484 INFO L93 Difference]: Finished difference Result 19064 states and 30161 transitions. [2018-09-10 11:51:01,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:51:01,487 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 216 [2018-09-10 11:51:01,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:51:01,559 INFO L225 Difference]: With dead ends: 19064 [2018-09-10 11:51:01,560 INFO L226 Difference]: Without dead ends: 12047 [2018-09-10 11:51:01,585 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 428 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:51:01,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12047 states. [2018-09-10 11:51:02,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12047 to 11960. [2018-09-10 11:51:02,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11960 states. [2018-09-10 11:51:02,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11960 states to 11960 states and 17060 transitions. [2018-09-10 11:51:02,076 INFO L78 Accepts]: Start accepts. Automaton has 11960 states and 17060 transitions. Word has length 216 [2018-09-10 11:51:02,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:51:02,076 INFO L480 AbstractCegarLoop]: Abstraction has 11960 states and 17060 transitions. [2018-09-10 11:51:02,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:51:02,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11960 states and 17060 transitions. [2018-09-10 11:51:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2018-09-10 11:51:02,085 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:51:02,086 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-09-10 11:51:02,086 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]=== [2018-09-10 11:51:02,090 INFO L82 PathProgramCache]: Analyzing trace with hash -982471932, now seen corresponding path program 1 times [2018-09-10 11:51:02,090 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:51:02,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:02,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:02,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:02,091 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:51:02,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:02,426 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 112 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:51:02,426 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:02,426 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 11:51:02,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:02,449 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:51:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:02,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:02,680 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 11:51:02,680 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:02,904 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 112 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:51:02,933 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:51:02,934 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-10 11:51:02,934 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:51:02,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:51:02,935 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:51:02,935 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-09-10 11:51:02,936 INFO L87 Difference]: Start difference. First operand 11960 states and 17060 transitions. Second operand 5 states. [2018-09-10 11:51:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:51:14,024 INFO L93 Difference]: Finished difference Result 38648 states and 58967 transitions. [2018-09-10 11:51:14,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:51:14,025 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2018-09-10 11:51:14,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:51:14,166 INFO L225 Difference]: With dead ends: 38648 [2018-09-10 11:51:14,166 INFO L226 Difference]: Without dead ends: 26694 [2018-09-10 11:51:14,230 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 475 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:51:14,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26694 states. [2018-09-10 11:51:14,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26694 to 26502. [2018-09-10 11:51:14,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26502 states. [2018-09-10 11:51:14,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26502 states to 26502 states and 38857 transitions. [2018-09-10 11:51:14,912 INFO L78 Accepts]: Start accepts. Automaton has 26502 states and 38857 transitions. Word has length 240 [2018-09-10 11:51:14,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:51:14,913 INFO L480 AbstractCegarLoop]: Abstraction has 26502 states and 38857 transitions. [2018-09-10 11:51:14,913 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:51:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 26502 states and 38857 transitions. [2018-09-10 11:51:14,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2018-09-10 11:51:14,928 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:51:14,928 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:51:14,931 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]=== [2018-09-10 11:51:14,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1844811972, now seen corresponding path program 1 times [2018-09-10 11:51:14,932 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:51:14,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:14,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:14,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:14,933 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:51:14,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:15,338 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 112 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:51:15,339 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:15,339 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) [2018-09-10 11:51:15,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:15,353 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:51:15,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:15,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:15,799 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 11:51:15,799 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 112 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:51:16,752 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:51:16,752 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 10 [2018-09-10 11:51:16,752 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:51:16,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:51:16,753 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:51:16,753 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:51:16,754 INFO L87 Difference]: Start difference. First operand 26502 states and 38857 transitions. Second operand 5 states. [2018-09-10 11:51:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:51:32,240 INFO L93 Difference]: Finished difference Result 79509 states and 123315 transitions. [2018-09-10 11:51:32,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 11:51:32,245 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2018-09-10 11:51:32,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:51:32,520 INFO L225 Difference]: With dead ends: 79509 [2018-09-10 11:51:32,521 INFO L226 Difference]: Without dead ends: 53013 [2018-09-10 11:51:32,600 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:51:32,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53013 states. [2018-09-10 11:51:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53013 to 52736. [2018-09-10 11:51:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52736 states. [2018-09-10 11:51:33,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52736 states to 52736 states and 72779 transitions. [2018-09-10 11:51:33,831 INFO L78 Accepts]: Start accepts. Automaton has 52736 states and 72779 transitions. Word has length 244 [2018-09-10 11:51:33,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:51:33,831 INFO L480 AbstractCegarLoop]: Abstraction has 52736 states and 72779 transitions. [2018-09-10 11:51:33,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:51:33,832 INFO L276 IsEmpty]: Start isEmpty. Operand 52736 states and 72779 transitions. [2018-09-10 11:51:33,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-09-10 11:51:33,865 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:51:33,866 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, 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, 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] [2018-09-10 11:51:33,866 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]=== [2018-09-10 11:51:33,866 INFO L82 PathProgramCache]: Analyzing trace with hash -857448372, now seen corresponding path program 1 times [2018-09-10 11:51:33,867 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:51:33,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:33,868 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:33,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:33,868 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:51:33,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:34,758 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:51:34,758 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:34,758 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:51:34,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:34,767 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:51:34,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:34,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:35,315 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:51:35,315 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:35,710 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:51:35,731 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:51:35,731 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:51:35,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:35,758 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:51:36,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:51:36,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:51:36,387 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:51:36,388 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:51:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-09-10 11:51:37,198 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:51:37,198 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 11:51:37,198 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:51:37,199 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:51:37,199 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:51:37,200 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:51:37,200 INFO L87 Difference]: Start difference. First operand 52736 states and 72779 transitions. Second operand 9 states. [2018-09-10 11:51:57,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:51:57,010 INFO L93 Difference]: Finished difference Result 147437 states and 231075 transitions. [2018-09-10 11:51:57,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-10 11:51:57,011 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 381 [2018-09-10 11:51:57,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:51:57,426 INFO L225 Difference]: With dead ends: 147437 [2018-09-10 11:51:57,427 INFO L226 Difference]: Without dead ends: 86180 [2018-09-10 11:51:57,701 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1542 GetRequests, 1520 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-09-10 11:51:57,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86180 states. [2018-09-10 11:51:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86180 to 84110. [2018-09-10 11:51:59,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84110 states. [2018-09-10 11:51:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84110 states to 84110 states and 114643 transitions. [2018-09-10 11:51:59,784 INFO L78 Accepts]: Start accepts. Automaton has 84110 states and 114643 transitions. Word has length 381 [2018-09-10 11:51:59,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:51:59,787 INFO L480 AbstractCegarLoop]: Abstraction has 84110 states and 114643 transitions. [2018-09-10 11:51:59,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:51:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 84110 states and 114643 transitions. [2018-09-10 11:51:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2018-09-10 11:51:59,896 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:51:59,897 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:51:59,897 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]=== [2018-09-10 11:51:59,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1420444736, now seen corresponding path program 1 times [2018-09-10 11:51:59,898 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:51:59,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:59,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:51:59,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:51:59,899 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:51:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:00,388 WARN L175 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:52:00,658 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 224 proven. 273 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2018-09-10 11:52:00,659 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:00,659 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:52:01,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:01,204 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:01,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:01,559 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-09-10 11:52:01,559 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:52:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2018-09-10 11:52:01,746 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:52:01,747 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-09-10 11:52:01,747 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:52:01,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:52:01,748 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:52:01,748 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:52:01,748 INFO L87 Difference]: Start difference. First operand 84110 states and 114643 transitions. Second operand 3 states. [2018-09-10 11:52:08,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:52:08,558 INFO L93 Difference]: Finished difference Result 196275 states and 275797 transitions. [2018-09-10 11:52:08,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:52:08,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 482 [2018-09-10 11:52:08,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:52:09,611 INFO L225 Difference]: With dead ends: 196275 [2018-09-10 11:52:09,611 INFO L226 Difference]: Without dead ends: 112176 [2018-09-10 11:52:09,809 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 975 GetRequests, 965 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-10 11:52:09,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112176 states. [2018-09-10 11:52:11,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112176 to 103658. [2018-09-10 11:52:11,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103658 states. [2018-09-10 11:52:11,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103658 states to 103658 states and 134450 transitions. [2018-09-10 11:52:11,798 INFO L78 Accepts]: Start accepts. Automaton has 103658 states and 134450 transitions. Word has length 482 [2018-09-10 11:52:11,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:52:11,799 INFO L480 AbstractCegarLoop]: Abstraction has 103658 states and 134450 transitions. [2018-09-10 11:52:11,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:52:11,799 INFO L276 IsEmpty]: Start isEmpty. Operand 103658 states and 134450 transitions. [2018-09-10 11:52:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2018-09-10 11:52:11,927 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:11,927 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:52:11,928 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:52:11,928 INFO L82 PathProgramCache]: Analyzing trace with hash -734738948, now seen corresponding path program 1 times [2018-09-10 11:52:11,928 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:11,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:11,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:11,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:11,930 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:12,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:12,601 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 302 proven. 54 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2018-09-10 11:52:12,602 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:12,602 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 11:52:12,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:12,618 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:12,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:13,079 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2018-09-10 11:52:13,079 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:52:14,267 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 333 trivial. 0 not checked. [2018-09-10 11:52:14,288 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:52:14,288 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 6 [2018-09-10 11:52:14,288 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:52:14,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:52:14,289 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:52:14,289 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:52:14,290 INFO L87 Difference]: Start difference. First operand 103658 states and 134450 transitions. Second operand 3 states. [2018-09-10 11:52:19,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:52:19,810 INFO L93 Difference]: Finished difference Result 247304 states and 325565 transitions. [2018-09-10 11:52:19,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:52:19,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 485 [2018-09-10 11:52:19,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:52:20,279 INFO L225 Difference]: With dead ends: 247304 [2018-09-10 11:52:20,280 INFO L226 Difference]: Without dead ends: 124858 [2018-09-10 11:52:20,642 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 976 GetRequests, 970 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 11:52:20,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124858 states. [2018-09-10 11:52:23,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124858 to 124831. [2018-09-10 11:52:23,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124831 states. [2018-09-10 11:52:23,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124831 states to 124831 states and 154670 transitions. [2018-09-10 11:52:23,732 INFO L78 Accepts]: Start accepts. Automaton has 124831 states and 154670 transitions. Word has length 485 [2018-09-10 11:52:23,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:52:23,736 INFO L480 AbstractCegarLoop]: Abstraction has 124831 states and 154670 transitions. [2018-09-10 11:52:23,736 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:52:23,736 INFO L276 IsEmpty]: Start isEmpty. Operand 124831 states and 154670 transitions. [2018-09-10 11:52:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2018-09-10 11:52:23,822 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:23,823 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:52:23,823 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:52:23,823 INFO L82 PathProgramCache]: Analyzing trace with hash 25633064, now seen corresponding path program 1 times [2018-09-10 11:52:23,824 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:23,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:23,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:23,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:23,825 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:24,691 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 320 proven. 154 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-10 11:52:24,692 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:24,692 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:52:24,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:24,705 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:24,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:24,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:25,101 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 11:52:25,101 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:52:25,473 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 320 proven. 154 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-10 11:52:25,495 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:25,496 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:52:25,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:25,515 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:25,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:25,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:26,926 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 562 proven. 2 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-10 11:52:26,926 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:52:27,297 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 320 proven. 154 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-10 11:52:27,300 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:52:27,301 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 11:52:27,301 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:52:27,302 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:52:27,302 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:52:27,302 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:52:27,302 INFO L87 Difference]: Start difference. First operand 124831 states and 154670 transitions. Second operand 9 states. [2018-09-10 11:52:49,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:52:49,165 INFO L93 Difference]: Finished difference Result 294993 states and 381731 transitions. [2018-09-10 11:52:49,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-10 11:52:49,165 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 535 [2018-09-10 11:52:49,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:52:49,654 INFO L225 Difference]: With dead ends: 294993 [2018-09-10 11:52:49,654 INFO L226 Difference]: Without dead ends: 170936 [2018-09-10 11:52:49,884 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2168 GetRequests, 2142 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=160, Invalid=346, Unknown=0, NotChecked=0, Total=506 [2018-09-10 11:52:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170936 states. [2018-09-10 11:52:52,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170936 to 167566. [2018-09-10 11:52:52,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167566 states. [2018-09-10 11:52:53,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167566 states to 167566 states and 202139 transitions. [2018-09-10 11:52:53,345 INFO L78 Accepts]: Start accepts. Automaton has 167566 states and 202139 transitions. Word has length 535 [2018-09-10 11:52:53,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:52:53,346 INFO L480 AbstractCegarLoop]: Abstraction has 167566 states and 202139 transitions. [2018-09-10 11:52:53,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:52:53,346 INFO L276 IsEmpty]: Start isEmpty. Operand 167566 states and 202139 transitions. [2018-09-10 11:52:53,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2018-09-10 11:52:53,414 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:53,415 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:52:53,415 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:52:53,415 INFO L82 PathProgramCache]: Analyzing trace with hash 566640255, now seen corresponding path program 1 times [2018-09-10 11:52:53,415 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:53,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:53,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:53,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:53,416 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:53,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:54,771 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 318 proven. 231 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:52:54,771 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:52:54,771 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:52:54,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:54,779 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:52:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:52:54,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:52:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-09-10 11:52:56,247 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:52:56,414 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 380 trivial. 0 not checked. [2018-09-10 11:52:56,435 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:52:56,436 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 13 [2018-09-10 11:52:56,436 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:52:56,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:52:56,437 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:52:56,437 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:52:56,438 INFO L87 Difference]: Start difference. First operand 167566 states and 202139 transitions. Second operand 3 states. [2018-09-10 11:53:08,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:08,423 INFO L93 Difference]: Finished difference Result 325419 states and 393967 transitions. [2018-09-10 11:53:08,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:53:08,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 548 [2018-09-10 11:53:08,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:08,848 INFO L225 Difference]: With dead ends: 325419 [2018-09-10 11:53:08,848 INFO L226 Difference]: Without dead ends: 161231 [2018-09-10 11:53:09,087 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1109 GetRequests, 1096 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:53:09,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161231 states. [2018-09-10 11:53:11,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161231 to 158118. [2018-09-10 11:53:11,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158118 states. [2018-09-10 11:53:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158118 states to 158118 states and 186389 transitions. [2018-09-10 11:53:11,601 INFO L78 Accepts]: Start accepts. Automaton has 158118 states and 186389 transitions. Word has length 548 [2018-09-10 11:53:11,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:11,603 INFO L480 AbstractCegarLoop]: Abstraction has 158118 states and 186389 transitions. [2018-09-10 11:53:11,603 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:53:11,603 INFO L276 IsEmpty]: Start isEmpty. Operand 158118 states and 186389 transitions. [2018-09-10 11:53:11,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2018-09-10 11:53:11,670 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:11,671 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:11,671 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:53:11,671 INFO L82 PathProgramCache]: Analyzing trace with hash 712594479, now seen corresponding path program 1 times [2018-09-10 11:53:11,671 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:11,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:11,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:11,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:11,672 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:12,164 INFO L134 CoverageAnalysis]: Checked inductivity of 847 backedges. 233 proven. 0 refuted. 0 times theorem prover too weak. 614 trivial. 0 not checked. [2018-09-10 11:53:12,164 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:12,165 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:53:12,165 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:12,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:53:12,165 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:53:12,165 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:53:12,166 INFO L87 Difference]: Start difference. First operand 158118 states and 186389 transitions. Second operand 3 states. [2018-09-10 11:53:19,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:19,223 INFO L93 Difference]: Finished difference Result 339640 states and 408814 transitions. [2018-09-10 11:53:19,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:53:19,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 599 [2018-09-10 11:53:19,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:19,226 INFO L225 Difference]: With dead ends: 339640 [2018-09-10 11:53:19,226 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 11:53:19,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:53:19,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 11:53:19,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 11:53:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 11:53:19,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 11:53:19,621 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 599 [2018-09-10 11:53:19,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:19,621 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 11:53:19,622 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:53:19,622 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 11:53:19,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 11:53:19,628 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 11:53:21,579 WARN L175 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-10 11:53:22,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,207 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,355 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:22,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,157 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,442 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,663 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:23,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,105 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,190 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,278 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,323 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,418 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,905 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:24,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,188 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,759 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:25,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,496 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,696 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,797 WARN L175 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 1230 DAG size of output: 701 [2018-09-10 11:53:26,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:26,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,046 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,189 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,630 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:27,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,222 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,231 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,367 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,488 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,641 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,943 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:28,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,296 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,308 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,507 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,584 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,721 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,798 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:29,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,221 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 11:53:30,473 WARN L175 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 1230 DAG size of output: 701 [2018-09-10 11:53:36,044 WARN L175 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 660 DAG size of output: 90 Received shutdown request... [2018-09-10 11:53:38,097 WARN L183 SmtUtils]: Removed 69 from assertion stack [2018-09-10 11:53:38,097 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 11:53:38,099 INFO L168 Benchmark]: Toolchain (without parser) took 216042.91 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-10 11:53:38,100 INFO L168 Benchmark]: CDTParser took 0.22 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 11:53:38,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2732.47 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-09-10 11:53:38,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 258.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2018-09-10 11:53:38,102 INFO L168 Benchmark]: Boogie Preprocessor took 895.34 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 920.1 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. [2018-09-10 11:53:38,103 INFO L168 Benchmark]: RCFGBuilder took 13290.73 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 149.4 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -131.2 MB). Peak memory consumption was 725.5 MB. Max. memory is 7.1 GB. [2018-09-10 11:53:38,104 INFO L168 Benchmark]: TraceAbstraction took 198858.32 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -449.5 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-10 11:53:38,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 2732.47 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: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 258.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 895.34 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 920.1 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 128.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13290.73 ms. Allocated memory was 2.5 GB in the beginning and 2.6 GB in the end (delta: 149.4 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -131.2 MB). Peak memory consumption was 725.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 198858.32 ms. Allocated memory was 2.6 GB in the beginning and 4.8 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.9 GB in the end (delta: -449.5 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 180]: 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 598. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem12_label56_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-53-38-130.csv Completed graceful shutdown