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/Problem13_label10_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:52:38,896 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:52:38,898 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:52:38,919 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:52:38,920 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:52:38,921 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:52:38,923 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:52:38,925 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:52:38,929 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:52:38,933 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:52:38,934 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:52:38,934 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:52:38,935 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:52:38,939 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:52:38,946 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:52:38,947 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:52:38,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:52:38,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:52:38,958 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:52:38,961 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:52:38,963 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:52:38,965 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:52:38,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 11:52:38,970 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 11:52:38,970 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 11:52:38,972 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 11:52:38,973 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 11:52:38,974 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 11:52:38,977 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 11:52:38,978 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 11:52:38,978 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 11:52:38,980 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 11:52:38,980 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 11:52:38,980 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 11:52:38,982 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 11:52:38,983 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 11:52:38,984 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 11:52:39,012 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:52:39,013 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:52:39,014 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:52:39,014 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:52:39,014 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:52:39,014 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:52:39,014 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:52:39,015 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:52:39,015 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:52:39,015 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:52:39,015 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:52:39,016 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:52:39,016 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:52:39,016 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:52:39,017 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:52:39,018 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:52:39,018 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:52:39,018 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:52:39,018 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:52:39,018 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:52:39,019 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:52:39,019 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:52:39,019 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:52:39,019 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:52:39,021 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:52:39,021 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:52:39,021 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:52:39,021 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:52:39,022 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:52:39,022 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:52:39,022 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:52:39,022 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:52:39,023 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:52:39,088 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:52:39,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:52:39,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:52:39,112 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:52:39,112 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:52:39,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-09-10 11:52:39,480 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f1ef03d/65c7d89dc4d24e3891d7fc0cfc638316/FLAGfa1bc0c12 [2018-09-10 11:52:40,009 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:52:40,010 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label10_true-unreach-call.c [2018-09-10 11:52:40,063 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f1ef03d/65c7d89dc4d24e3891d7fc0cfc638316/FLAGfa1bc0c12 [2018-09-10 11:52:40,087 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9f1ef03d/65c7d89dc4d24e3891d7fc0cfc638316 [2018-09-10 11:52:40,100 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:52:40,103 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:52:40,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:52:40,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:52:40,111 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:52:40,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:52:40" (1/1) ... [2018-09-10 11:52:40,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@782dc4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:40, skipping insertion in model container [2018-09-10 11:52:40,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:52:40" (1/1) ... [2018-09-10 11:52:40,501 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:52:41,605 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:52:41,625 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:52:42,460 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:52:42,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42 WrapperNode [2018-09-10 11:52:42,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:52:42,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:52:42,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:52:42,864 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:52:42,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:43,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:43,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:52:43,186 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:52:43,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:52:43,186 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:52:44,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (1/1) ... [2018-09-10 11:52:44,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:52:44,471 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:52:44,471 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:52:44,472 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:52:44,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (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 11:52:44,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:52:44,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:52:44,550 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 11:52:44,550 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 11:52:44,550 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 11:52:44,550 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 11:52:44,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:52:44,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:52:44,551 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 11:52:44,551 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 11:52:44,551 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:52:44,551 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:52:44,551 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 11:52:44,552 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 11:52:59,482 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:52:59,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:52:59 BoogieIcfgContainer [2018-09-10 11:52:59,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:52:59,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:52:59,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:52:59,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:52:59,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:52:40" (1/3) ... [2018-09-10 11:52:59,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a980e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:52:59, skipping insertion in model container [2018-09-10 11:52:59,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:52:42" (2/3) ... [2018-09-10 11:52:59,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a980e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:52:59, skipping insertion in model container [2018-09-10 11:52:59,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:52:59" (3/3) ... [2018-09-10 11:52:59,491 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label10_true-unreach-call.c [2018-09-10 11:52:59,501 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:52:59,511 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:52:59,574 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:52:59,574 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:52:59,574 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:52:59,575 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:52:59,575 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:52:59,575 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:52:59,575 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:52:59,575 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:52:59,575 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:52:59,624 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-09-10 11:52:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-10 11:52:59,634 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:52:59,637 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] [2018-09-10 11:52:59,638 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 11:52:59,647 INFO L82 PathProgramCache]: Analyzing trace with hash 826381732, now seen corresponding path program 1 times [2018-09-10 11:52:59,650 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:52:59,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:59,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:52:59,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:52:59,701 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:52:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:00,227 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 11:53:00,230 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:00,230 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:53:00,230 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:00,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:53:00,252 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:53:00,253 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:53:00,255 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-09-10 11:53:10,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:10,670 INFO L93 Difference]: Finished difference Result 3097 states and 5707 transitions. [2018-09-10 11:53:10,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:53:10,671 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-09-10 11:53:10,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:10,706 INFO L225 Difference]: With dead ends: 3097 [2018-09-10 11:53:10,706 INFO L226 Difference]: Without dead ends: 1975 [2018-09-10 11:53:10,717 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:53:10,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1975 states. [2018-09-10 11:53:10,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1975 to 1974. [2018-09-10 11:53:10,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1974 states. [2018-09-10 11:53:10,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1974 states to 1974 states and 3284 transitions. [2018-09-10 11:53:10,879 INFO L78 Accepts]: Start accepts. Automaton has 1974 states and 3284 transitions. Word has length 54 [2018-09-10 11:53:10,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:10,880 INFO L480 AbstractCegarLoop]: Abstraction has 1974 states and 3284 transitions. [2018-09-10 11:53:10,880 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:53:10,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1974 states and 3284 transitions. [2018-09-10 11:53:10,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2018-09-10 11:53:10,893 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:10,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:10,895 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 11:53:10,895 INFO L82 PathProgramCache]: Analyzing trace with hash -37326668, now seen corresponding path program 1 times [2018-09-10 11:53:10,895 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:10,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:10,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:10,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:10,898 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:11,210 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:53:11,211 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:11,211 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:53:11,211 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:11,213 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:53:11,213 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:53:11,214 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:53:11,214 INFO L87 Difference]: Start difference. First operand 1974 states and 3284 transitions. Second operand 5 states. [2018-09-10 11:53:32,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:32,184 INFO L93 Difference]: Finished difference Result 5736 states and 9691 transitions. [2018-09-10 11:53:32,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:53:32,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2018-09-10 11:53:32,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:32,216 INFO L225 Difference]: With dead ends: 5736 [2018-09-10 11:53:32,216 INFO L226 Difference]: Without dead ends: 3768 [2018-09-10 11:53:32,223 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:53:32,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3768 states. [2018-09-10 11:53:32,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3768 to 3686. [2018-09-10 11:53:32,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3686 states. [2018-09-10 11:53:32,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 5660 transitions. [2018-09-10 11:53:32,352 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 5660 transitions. Word has length 130 [2018-09-10 11:53:32,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:32,353 INFO L480 AbstractCegarLoop]: Abstraction has 3686 states and 5660 transitions. [2018-09-10 11:53:32,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:53:32,353 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5660 transitions. [2018-09-10 11:53:32,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-09-10 11:53:32,358 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:32,359 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:32,359 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 11:53:32,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1331044824, now seen corresponding path program 1 times [2018-09-10 11:53:32,360 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:32,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:32,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:32,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:32,361 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:32,628 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:53:32,629 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:32,629 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 11:53:32,629 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:32,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:53:32,630 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:53:32,630 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 11:53:32,631 INFO L87 Difference]: Start difference. First operand 3686 states and 5660 transitions. Second operand 5 states. [2018-09-10 11:53:49,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:53:49,895 INFO L93 Difference]: Finished difference Result 12385 states and 19158 transitions. [2018-09-10 11:53:49,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-10 11:53:49,896 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2018-09-10 11:53:49,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:53:49,946 INFO L225 Difference]: With dead ends: 12385 [2018-09-10 11:53:49,946 INFO L226 Difference]: Without dead ends: 8705 [2018-09-10 11:53:49,965 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:53:49,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8705 states. [2018-09-10 11:53:50,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8705 to 8670. [2018-09-10 11:53:50,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8670 states. [2018-09-10 11:53:50,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 12401 transitions. [2018-09-10 11:53:50,183 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 12401 transitions. Word has length 144 [2018-09-10 11:53:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:53:50,184 INFO L480 AbstractCegarLoop]: Abstraction has 8670 states and 12401 transitions. [2018-09-10 11:53:50,184 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:53:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 12401 transitions. [2018-09-10 11:53:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2018-09-10 11:53:50,188 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:53:50,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:50,189 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 11:53:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1977220836, now seen corresponding path program 1 times [2018-09-10 11:53:50,189 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:53:50,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:50,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:53:50,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:53:50,190 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:53:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:53:50,459 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:53:50,459 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:53:50,460 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:53:50,460 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:53:50,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:53:50,461 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:53:50,461 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:53:50,461 INFO L87 Difference]: Start difference. First operand 8670 states and 12401 transitions. Second operand 4 states. [2018-09-10 11:54:03,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:54:03,897 INFO L93 Difference]: Finished difference Result 33582 states and 50422 transitions. [2018-09-10 11:54:03,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:54:03,900 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 170 [2018-09-10 11:54:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:54:04,013 INFO L225 Difference]: With dead ends: 33582 [2018-09-10 11:54:04,013 INFO L226 Difference]: Without dead ends: 24918 [2018-09-10 11:54:04,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 11:54:04,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24918 states. [2018-09-10 11:54:04,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24918 to 24882. [2018-09-10 11:54:04,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24882 states. [2018-09-10 11:54:04,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24882 states to 24882 states and 34072 transitions. [2018-09-10 11:54:04,775 INFO L78 Accepts]: Start accepts. Automaton has 24882 states and 34072 transitions. Word has length 170 [2018-09-10 11:54:04,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:54:04,776 INFO L480 AbstractCegarLoop]: Abstraction has 24882 states and 34072 transitions. [2018-09-10 11:54:04,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:54:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 24882 states and 34072 transitions. [2018-09-10 11:54:04,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2018-09-10 11:54:04,801 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:54:04,802 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, 3, 3, 3, 3, 3, 3, 3, 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, 1] [2018-09-10 11:54:04,802 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 11:54:04,802 INFO L82 PathProgramCache]: Analyzing trace with hash -994688678, now seen corresponding path program 1 times [2018-09-10 11:54:04,803 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:54:04,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:04,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:04,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:04,804 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:54:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:05,415 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 309 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-10 11:54:05,415 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:54:05,416 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 11:54:05,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:05,428 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:54:05,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:05,591 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:54:05,974 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 11:54:05,975 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:54:06,236 WARN L175 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-10 11:54:06,725 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2018-09-10 11:54:06,764 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:54:06,765 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 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:54:06,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:06,795 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:54:07,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:07,075 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:54:07,279 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 309 proven. 6 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 11:54:07,280 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:54:07,817 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 311 proven. 4 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-10 11:54:07,819 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:54:07,819 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 11:54:07,819 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:54:07,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:54:07,821 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:54:07,821 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:54:07,821 INFO L87 Difference]: Start difference. First operand 24882 states and 34072 transitions. Second operand 9 states. [2018-09-10 11:54:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:54:32,903 INFO L93 Difference]: Finished difference Result 66841 states and 103348 transitions. [2018-09-10 11:54:32,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 11:54:32,905 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 329 [2018-09-10 11:54:32,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:54:33,162 INFO L225 Difference]: With dead ends: 66841 [2018-09-10 11:54:33,162 INFO L226 Difference]: Without dead ends: 41965 [2018-09-10 11:54:33,311 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 1315 SyntacticMatches, 6 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 11:54:33,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41965 states. [2018-09-10 11:54:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41965 to 41833. [2018-09-10 11:54:34,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41833 states. [2018-09-10 11:54:34,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41833 states to 41833 states and 58243 transitions. [2018-09-10 11:54:34,697 INFO L78 Accepts]: Start accepts. Automaton has 41833 states and 58243 transitions. Word has length 329 [2018-09-10 11:54:34,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:54:34,698 INFO L480 AbstractCegarLoop]: Abstraction has 41833 states and 58243 transitions. [2018-09-10 11:54:34,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:54:34,698 INFO L276 IsEmpty]: Start isEmpty. Operand 41833 states and 58243 transitions. [2018-09-10 11:54:34,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-09-10 11:54:34,735 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:54:34,735 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:54:34,736 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 11:54:34,736 INFO L82 PathProgramCache]: Analyzing trace with hash -2100679619, now seen corresponding path program 1 times [2018-09-10 11:54:34,736 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:54:34,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:34,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:54:34,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:54:34,738 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:54:34,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:54:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-09-10 11:54:35,585 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:54:35,586 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:54:35,586 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:54:35,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:54:35,587 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:54:35,587 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:54:35,587 INFO L87 Difference]: Start difference. First operand 41833 states and 58243 transitions. Second operand 4 states. [2018-09-10 11:55:00,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:00,003 INFO L93 Difference]: Finished difference Result 154082 states and 243115 transitions. [2018-09-10 11:55:00,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:55:00,004 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 328 [2018-09-10 11:55:00,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:00,587 INFO L225 Difference]: With dead ends: 154082 [2018-09-10 11:55:00,588 INFO L226 Difference]: Without dead ends: 112255 [2018-09-10 11:55:00,839 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 11:55:00,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112255 states. [2018-09-10 11:55:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112255 to 112086. [2018-09-10 11:55:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112086 states. [2018-09-10 11:55:04,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112086 states to 112086 states and 166181 transitions. [2018-09-10 11:55:04,452 INFO L78 Accepts]: Start accepts. Automaton has 112086 states and 166181 transitions. Word has length 328 [2018-09-10 11:55:04,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:04,453 INFO L480 AbstractCegarLoop]: Abstraction has 112086 states and 166181 transitions. [2018-09-10 11:55:04,453 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:55:04,453 INFO L276 IsEmpty]: Start isEmpty. Operand 112086 states and 166181 transitions. [2018-09-10 11:55:04,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2018-09-10 11:55:04,532 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:04,532 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:55:04,532 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 11:55:04,533 INFO L82 PathProgramCache]: Analyzing trace with hash 79766557, now seen corresponding path program 1 times [2018-09-10 11:55:04,533 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:04,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:04,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:04,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:04,535 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:04,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:04,903 WARN L175 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 6 [2018-09-10 11:55:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-10 11:55:04,975 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:04,976 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:55:04,993 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:04,994 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:05,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:05,369 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-10 11:55:05,369 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-10 11:55:05,701 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:55:05,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-09-10 11:55:05,701 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:05,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:55:05,702 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:55:05,702 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:55:05,703 INFO L87 Difference]: Start difference. First operand 112086 states and 166181 transitions. Second operand 3 states. [2018-09-10 11:55:16,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:16,621 INFO L93 Difference]: Finished difference Result 245251 states and 378760 transitions. [2018-09-10 11:55:16,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:55:16,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 355 [2018-09-10 11:55:16,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:17,375 INFO L225 Difference]: With dead ends: 245251 [2018-09-10 11:55:17,376 INFO L226 Difference]: Without dead ends: 146275 [2018-09-10 11:55:17,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 710 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:55:17,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146275 states. [2018-09-10 11:55:21,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146275 to 146270. [2018-09-10 11:55:21,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146270 states. [2018-09-10 11:55:21,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146270 states to 146270 states and 210898 transitions. [2018-09-10 11:55:21,839 INFO L78 Accepts]: Start accepts. Automaton has 146270 states and 210898 transitions. Word has length 355 [2018-09-10 11:55:21,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:21,839 INFO L480 AbstractCegarLoop]: Abstraction has 146270 states and 210898 transitions. [2018-09-10 11:55:21,839 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:55:21,840 INFO L276 IsEmpty]: Start isEmpty. Operand 146270 states and 210898 transitions. [2018-09-10 11:55:21,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-09-10 11:55:21,894 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:21,894 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:55:21,895 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 11:55:21,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1306109818, now seen corresponding path program 1 times [2018-09-10 11:55:21,895 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:21,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:21,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:21,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:21,897 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:21,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:22,366 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 227 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:22,367 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:22,367 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 11:55:22,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:22,378 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:22,519 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:22,798 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-09-10 11:55:22,798 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:23,267 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-09-10 11:55:23,307 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:55:23,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-09-10 11:55:23,307 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:55:23,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:55:23,309 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:55:23,309 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:55:23,309 INFO L87 Difference]: Start difference. First operand 146270 states and 210898 transitions. Second operand 3 states. [2018-09-10 11:55:30,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:30,610 INFO L93 Difference]: Finished difference Result 279399 states and 406043 transitions. [2018-09-10 11:55:30,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:55:30,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 362 [2018-09-10 11:55:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:31,111 INFO L225 Difference]: With dead ends: 279399 [2018-09-10 11:55:31,111 INFO L226 Difference]: Without dead ends: 146239 [2018-09-10 11:55:31,341 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:55:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146239 states. [2018-09-10 11:55:34,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146239 to 146239. [2018-09-10 11:55:34,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146239 states. [2018-09-10 11:55:34,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146239 states to 146239 states and 210467 transitions. [2018-09-10 11:55:34,908 INFO L78 Accepts]: Start accepts. Automaton has 146239 states and 210467 transitions. Word has length 362 [2018-09-10 11:55:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:55:34,909 INFO L480 AbstractCegarLoop]: Abstraction has 146239 states and 210467 transitions. [2018-09-10 11:55:34,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:55:34,909 INFO L276 IsEmpty]: Start isEmpty. Operand 146239 states and 210467 transitions. [2018-09-10 11:55:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2018-09-10 11:55:34,960 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:55:34,960 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:55:34,960 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 11:55:34,961 INFO L82 PathProgramCache]: Analyzing trace with hash -298838546, now seen corresponding path program 1 times [2018-09-10 11:55:34,961 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:55:34,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:34,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:34,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:55:34,962 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:55:35,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:35,424 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:35,424 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:55:35,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:35,432 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:35,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:35,575 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:35,725 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:35,726 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:35,962 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:35,983 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:55:35,983 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:55:35,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:55:35,999 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:55:36,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:55:36,318 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:55:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:37,778 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:55:38,018 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 260 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:55:38,020 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:55:38,021 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-09-10 11:55:38,021 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:55:38,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:55:38,024 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:55:38,024 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:55:38,024 INFO L87 Difference]: Start difference. First operand 146239 states and 210467 transitions. Second operand 9 states. [2018-09-10 11:55:58,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:55:58,405 INFO L93 Difference]: Finished difference Result 381387 states and 613349 transitions. [2018-09-10 11:55:58,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-10 11:55:58,406 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 393 [2018-09-10 11:55:58,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:55:59,473 INFO L225 Difference]: With dead ends: 381387 [2018-09-10 11:55:59,473 INFO L226 Difference]: Without dead ends: 235154 [2018-09-10 11:55:59,782 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1582 GetRequests, 1563 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-09-10 11:55:59,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235154 states. [2018-09-10 11:56:10,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235154 to 233244. [2018-09-10 11:56:10,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233244 states. [2018-09-10 11:56:11,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233244 states to 233244 states and 317094 transitions. [2018-09-10 11:56:11,924 INFO L78 Accepts]: Start accepts. Automaton has 233244 states and 317094 transitions. Word has length 393 [2018-09-10 11:56:11,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:56:11,925 INFO L480 AbstractCegarLoop]: Abstraction has 233244 states and 317094 transitions. [2018-09-10 11:56:11,925 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:56:11,925 INFO L276 IsEmpty]: Start isEmpty. Operand 233244 states and 317094 transitions. [2018-09-10 11:56:12,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-09-10 11:56:12,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:56:12,002 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:12,003 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 11:56:12,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1215829525, now seen corresponding path program 1 times [2018-09-10 11:56:12,003 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:56:12,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:12,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:12,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:56:12,004 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:56:12,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:12,403 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 351 proven. 2 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-10 11:56:12,403 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:56:12,403 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 11:56:12,413 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:56:12,413 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:56:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:56:12,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:56:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2018-09-10 11:56:13,449 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:56:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 147 proven. 0 refuted. 0 times theorem prover too weak. 293 trivial. 0 not checked. [2018-09-10 11:56:13,596 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 11:56:13,597 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 11:56:13,597 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:56:13,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:56:13,598 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:56:13,598 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:56:13,599 INFO L87 Difference]: Start difference. First operand 233244 states and 317094 transitions. Second operand 3 states. Received shutdown request... [2018-09-10 11:56:17,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:56:17,240 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:56:17,246 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:56:17,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:56:17 BoogieIcfgContainer [2018-09-10 11:56:17,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:56:17,247 INFO L168 Benchmark]: Toolchain (without parser) took 217146.99 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -977.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-10 11:56:17,248 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 11:56:17,249 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2759.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. [2018-09-10 11:56:17,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 321.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-10 11:56:17,250 INFO L168 Benchmark]: Boogie Preprocessor took 1285.35 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. [2018-09-10 11:56:17,251 INFO L168 Benchmark]: RCFGBuilder took 15011.81 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 150.5 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 79.1 MB). Peak memory consumption was 749.8 MB. Max. memory is 7.1 GB. [2018-09-10 11:56:17,252 INFO L168 Benchmark]: TraceAbstraction took 197762.58 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -122.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-09-10 11:56:17,257 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 2759.52 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 338.2 MB). Peak memory consumption was 338.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 321.29 ms. Allocated memory is still 1.5 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1285.35 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 174.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 15011.81 ms. Allocated memory was 2.5 GB in the beginning and 2.7 GB in the end (delta: 150.5 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 79.1 MB). Peak memory consumption was 749.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197762.58 ms. Allocated memory was 2.7 GB in the beginning and 4.7 GB in the end (delta: 2.0 GB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -122.6 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 153). Cancelled while BasicCegarLoop was constructing difference of abstraction (233244states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (102326 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 197.6s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 158.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6957 SDtfs, 26535 SDslu, 4657 SDs, 0 SdLazy, 54172 SolverSat, 13159 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 123.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5267 GetRequests, 5189 SyntacticMatches, 14 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233244occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 26.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 2370 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 9.2s InterpolantComputationTime, 5292 NumberOfCodeBlocks, 5292 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 7862 ConstructedInterpolants, 0 QuantifiedInterpolants, 6382588 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4250 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 10 PerfectInterpolantSequences, 6146/6249 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-56-17-270.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem13_label10_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-56-17-270.csv Completed graceful shutdown