java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 10:36:18,520 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 10:36:18,522 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 10:36:18,535 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 10:36:18,535 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 10:36:18,536 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 10:36:18,537 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 10:36:18,539 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 10:36:18,541 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 10:36:18,541 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 10:36:18,543 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 10:36:18,544 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 10:36:18,545 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 10:36:18,546 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 10:36:18,549 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 10:36:18,553 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 10:36:18,554 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 10:36:18,558 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 10:36:18,562 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 10:36:18,563 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 10:36:18,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 10:36:18,566 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 10:36:18,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-10 10:36:18,569 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-10 10:36:18,569 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-10 10:36:18,574 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-10 10:36:18,575 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-10 10:36:18,576 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-10 10:36:18,577 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-10 10:36:18,578 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-10 10:36:18,578 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-10 10:36:18,580 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-10 10:36:18,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-10 10:36:18,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-10 10:36:18,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-10 10:36:18,582 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-10 10:36:18,583 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 10:36:18,598 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 10:36:18,599 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 10:36:18,600 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 10:36:18,600 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 10:36:18,600 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 10:36:18,600 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 10:36:18,600 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 10:36:18,601 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 10:36:18,601 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 10:36:18,601 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 10:36:18,601 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 10:36:18,604 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 10:36:18,605 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 10:36:18,605 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 10:36:18,605 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 10:36:18,605 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 10:36:18,606 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 10:36:18,606 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 10:36:18,606 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 10:36:18,606 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 10:36:18,606 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 10:36:18,607 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 10:36:18,607 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 10:36:18,607 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:36:18,607 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 10:36:18,607 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 10:36:18,607 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 10:36:18,608 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 10:36:18,608 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 10:36:18,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 10:36:18,608 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 10:36:18,608 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 10:36:18,610 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 10:36:18,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 10:36:18,678 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 10:36:18,683 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 10:36:18,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 10:36:18,685 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 10:36:18,686 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c [2018-09-10 10:36:19,036 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ddbe235/b59168dba10346d5a201f09722b6a869/FLAG4dda43383 [2018-09-10 10:36:19,508 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 10:36:19,509 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c [2018-09-10 10:36:19,551 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ddbe235/b59168dba10346d5a201f09722b6a869/FLAG4dda43383 [2018-09-10 10:36:19,568 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/12ddbe235/b59168dba10346d5a201f09722b6a869 [2018-09-10 10:36:19,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 10:36:19,583 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 10:36:19,584 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 10:36:19,584 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 10:36:19,592 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 10:36:19,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:36:19" (1/1) ... [2018-09-10 10:36:19,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7744ec7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:19, skipping insertion in model container [2018-09-10 10:36:19,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 10:36:19" (1/1) ... [2018-09-10 10:36:19,947 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 10:36:20,958 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:36:20,978 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 10:36:21,728 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 10:36:21,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21 WrapperNode [2018-09-10 10:36:21,874 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 10:36:21,875 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 10:36:21,875 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 10:36:21,876 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 10:36:21,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:21,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,030 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 10:36:22,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 10:36:22,031 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 10:36:22,031 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 10:36:22,430 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,623 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... [2018-09-10 10:36:22,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 10:36:22,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 10:36:22,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 10:36:22,673 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 10:36:22,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 10:36:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 10:36:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 10:36:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 10:36:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 10:36:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 10:36:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output3 [2018-09-10 10:36:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 10:36:22,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 10:36:22,746 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 10:36:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4 [2018-09-10 10:36:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 10:36:22,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 10:36:22,747 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 10:36:22,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-09-10 10:36:34,110 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 10:36:34,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:36:34 BoogieIcfgContainer [2018-09-10 10:36:34,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 10:36:34,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 10:36:34,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 10:36:34,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 10:36:34,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 10:36:19" (1/3) ... [2018-09-10 10:36:34,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26525e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:36:34, skipping insertion in model container [2018-09-10 10:36:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 10:36:21" (2/3) ... [2018-09-10 10:36:34,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26525e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 10:36:34, skipping insertion in model container [2018-09-10 10:36:34,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 10:36:34" (3/3) ... [2018-09-10 10:36:34,119 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label28_true-unreach-call.c [2018-09-10 10:36:34,129 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 10:36:34,139 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 10:36:34,202 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 10:36:34,202 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 10:36:34,203 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 10:36:34,203 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 10:36:34,203 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 10:36:34,203 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 10:36:34,203 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 10:36:34,203 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 10:36:34,204 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 10:36:34,271 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-10 10:36:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2018-09-10 10:36:34,341 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:36:34,343 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:36:34,344 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:36:34,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1546137628, now seen corresponding path program 1 times [2018-09-10 10:36:34,354 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:36:34,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:34,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:36:34,411 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:34,411 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:36:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:36:35,985 WARN L175 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:36:37,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:36:37,014 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:36:37,014 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 10:36:37,014 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:36:37,021 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:36:37,035 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:36:37,035 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:36:37,037 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-10 10:36:44,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:36:44,693 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-10 10:36:44,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:36:44,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 821 [2018-09-10 10:36:44,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:36:44,747 INFO L225 Difference]: With dead ends: 2647 [2018-09-10 10:36:44,748 INFO L226 Difference]: Without dead ends: 1738 [2018-09-10 10:36:44,758 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 10:36:44,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-10 10:36:44,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-10 10:36:44,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-10 10:36:44,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3275 transitions. [2018-09-10 10:36:44,923 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3275 transitions. Word has length 821 [2018-09-10 10:36:44,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:36:44,928 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3275 transitions. [2018-09-10 10:36:44,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:36:44,929 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3275 transitions. [2018-09-10 10:36:44,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2018-09-10 10:36:44,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:36:44,980 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:36:44,980 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:36:44,981 INFO L82 PathProgramCache]: Analyzing trace with hash 75754765, now seen corresponding path program 1 times [2018-09-10 10:36:44,981 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:36:44,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:44,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:36:44,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:44,983 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:36:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:36:45,344 WARN L175 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:36:45,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:36:45,944 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:36:45,944 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-10 10:36:45,944 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:36:45,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:36:45,947 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:36:45,948 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-10 10:36:45,948 INFO L87 Difference]: Start difference. First operand 1738 states and 3275 transitions. Second operand 5 states. [2018-09-10 10:36:56,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:36:56,025 INFO L93 Difference]: Finished difference Result 5344 states and 10161 transitions. [2018-09-10 10:36:56,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:36:56,026 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 831 [2018-09-10 10:36:56,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:36:56,050 INFO L225 Difference]: With dead ends: 5344 [2018-09-10 10:36:56,051 INFO L226 Difference]: Without dead ends: 3612 [2018-09-10 10:36:56,058 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:36:56,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2018-09-10 10:36:56,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3583. [2018-09-10 10:36:56,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3583 states. [2018-09-10 10:36:56,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 6259 transitions. [2018-09-10 10:36:56,211 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 6259 transitions. Word has length 831 [2018-09-10 10:36:56,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:36:56,211 INFO L480 AbstractCegarLoop]: Abstraction has 3583 states and 6259 transitions. [2018-09-10 10:36:56,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:36:56,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 6259 transitions. [2018-09-10 10:36:56,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2018-09-10 10:36:56,253 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:36:56,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:36:56,256 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:36:56,257 INFO L82 PathProgramCache]: Analyzing trace with hash -2061056699, now seen corresponding path program 1 times [2018-09-10 10:36:56,257 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:36:56,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:56,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:36:56,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:36:56,259 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:36:56,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:36:57,115 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 10:36:57,115 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:36:57,116 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 10:36:57,116 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:36:57,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:36:57,119 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:36:57,119 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:36:57,119 INFO L87 Difference]: Start difference. First operand 3583 states and 6259 transitions. Second operand 6 states. [2018-09-10 10:37:04,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:37:04,218 INFO L93 Difference]: Finished difference Result 11013 states and 19692 transitions. [2018-09-10 10:37:04,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:37:04,223 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 880 [2018-09-10 10:37:04,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:37:04,262 INFO L225 Difference]: With dead ends: 11013 [2018-09-10 10:37:04,263 INFO L226 Difference]: Without dead ends: 7436 [2018-09-10 10:37:04,276 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 10:37:04,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2018-09-10 10:37:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7346. [2018-09-10 10:37:04,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7346 states. [2018-09-10 10:37:04,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7346 states to 7346 states and 12279 transitions. [2018-09-10 10:37:04,498 INFO L78 Accepts]: Start accepts. Automaton has 7346 states and 12279 transitions. Word has length 880 [2018-09-10 10:37:04,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:37:04,501 INFO L480 AbstractCegarLoop]: Abstraction has 7346 states and 12279 transitions. [2018-09-10 10:37:04,501 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:37:04,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7346 states and 12279 transitions. [2018-09-10 10:37:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-09-10 10:37:04,533 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:37:04,534 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:37:04,535 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:37:04,535 INFO L82 PathProgramCache]: Analyzing trace with hash -1965877592, now seen corresponding path program 1 times [2018-09-10 10:37:04,535 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:37:04,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:37:04,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:04,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:37:04,537 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:37:04,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:05,576 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:37:05,576 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:37:05,587 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:05,587 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:37:05,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:06,001 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:37:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:06,736 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:37:07,635 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:07,673 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:37:07,673 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 10:37:07,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:07,706 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:37:08,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:08,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:37:09,417 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:09,417 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:37:10,485 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:10,488 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:37:10,489 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-10 10:37:10,489 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:37:10,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:37:10,492 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:37:10,492 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-10 10:37:10,493 INFO L87 Difference]: Start difference. First operand 7346 states and 12279 transitions. Second operand 9 states. [2018-09-10 10:37:35,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:37:35,308 INFO L93 Difference]: Finished difference Result 36748 states and 75347 transitions. [2018-09-10 10:37:35,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-09-10 10:37:35,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 889 [2018-09-10 10:37:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:37:35,541 INFO L225 Difference]: With dead ends: 36748 [2018-09-10 10:37:35,541 INFO L226 Difference]: Without dead ends: 29408 [2018-09-10 10:37:35,608 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3650 GetRequests, 3589 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=710, Invalid=3072, Unknown=0, NotChecked=0, Total=3782 [2018-09-10 10:37:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29408 states. [2018-09-10 10:37:36,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29408 to 28392. [2018-09-10 10:37:36,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28392 states. [2018-09-10 10:37:36,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 41233 transitions. [2018-09-10 10:37:36,973 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 41233 transitions. Word has length 889 [2018-09-10 10:37:36,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:37:36,974 INFO L480 AbstractCegarLoop]: Abstraction has 28392 states and 41233 transitions. [2018-09-10 10:37:36,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:37:36,974 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 41233 transitions. [2018-09-10 10:37:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2018-09-10 10:37:37,097 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:37:37,098 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:37:37,099 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:37:37,099 INFO L82 PathProgramCache]: Analyzing trace with hash 634393197, now seen corresponding path program 1 times [2018-09-10 10:37:37,099 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:37:37,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:37:37,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:37,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:37:37,101 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:37:37,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:37,493 WARN L175 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 10:37:38,266 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:38,267 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 10:37:38,267 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-10 10:37:38,267 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:37:38,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 10:37:38,269 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 10:37:38,269 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-10 10:37:38,270 INFO L87 Difference]: Start difference. First operand 28392 states and 41233 transitions. Second operand 6 states. [2018-09-10 10:37:45,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:37:45,922 INFO L93 Difference]: Finished difference Result 71275 states and 109525 transitions. [2018-09-10 10:37:45,926 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 10:37:45,926 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 900 [2018-09-10 10:37:45,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:37:46,129 INFO L225 Difference]: With dead ends: 71275 [2018-09-10 10:37:46,129 INFO L226 Difference]: Without dead ends: 42889 [2018-09-10 10:37:46,260 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-10 10:37:46,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42889 states. [2018-09-10 10:37:47,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42889 to 42597. [2018-09-10 10:37:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42597 states. [2018-09-10 10:37:47,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42597 states to 42597 states and 59987 transitions. [2018-09-10 10:37:47,326 INFO L78 Accepts]: Start accepts. Automaton has 42597 states and 59987 transitions. Word has length 900 [2018-09-10 10:37:47,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:37:47,326 INFO L480 AbstractCegarLoop]: Abstraction has 42597 states and 59987 transitions. [2018-09-10 10:37:47,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 10:37:47,327 INFO L276 IsEmpty]: Start isEmpty. Operand 42597 states and 59987 transitions. [2018-09-10 10:37:47,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2018-09-10 10:37:47,477 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:37:47,478 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:37:47,478 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:37:47,479 INFO L82 PathProgramCache]: Analyzing trace with hash -446234224, now seen corresponding path program 1 times [2018-09-10 10:37:47,479 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:37:47,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:37:47,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:47,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:37:47,480 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:37:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:48,592 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:48,593 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:37:48,593 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:37:48,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:48,607 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:37:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:48,982 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:37:50,237 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:50,237 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:37:50,743 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 10:37:50,765 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:37:50,765 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:37:50,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:37:50,786 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:37:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:37:51,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:37:52,188 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-09-10 10:37:52,188 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:37:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-09-10 10:37:53,008 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-10 10:37:53,009 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 17 [2018-09-10 10:37:53,009 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:37:53,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 10:37:53,011 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 10:37:53,011 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-09-10 10:37:53,012 INFO L87 Difference]: Start difference. First operand 42597 states and 59987 transitions. Second operand 5 states. [2018-09-10 10:37:59,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:37:59,818 INFO L93 Difference]: Finished difference Result 99882 states and 150519 transitions. [2018-09-10 10:37:59,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 10:37:59,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 920 [2018-09-10 10:37:59,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:38:00,030 INFO L225 Difference]: With dead ends: 99882 [2018-09-10 10:38:00,030 INFO L226 Difference]: Without dead ends: 57291 [2018-09-10 10:38:00,128 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3685 GetRequests, 3668 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-09-10 10:38:00,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57291 states. [2018-09-10 10:38:01,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57291 to 57101. [2018-09-10 10:38:01,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57101 states. [2018-09-10 10:38:01,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57101 states to 57101 states and 79468 transitions. [2018-09-10 10:38:01,537 INFO L78 Accepts]: Start accepts. Automaton has 57101 states and 79468 transitions. Word has length 920 [2018-09-10 10:38:01,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:38:01,538 INFO L480 AbstractCegarLoop]: Abstraction has 57101 states and 79468 transitions. [2018-09-10 10:38:01,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 10:38:01,538 INFO L276 IsEmpty]: Start isEmpty. Operand 57101 states and 79468 transitions. [2018-09-10 10:38:01,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2018-09-10 10:38:01,674 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:38:01,675 INFO L376 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:38:01,675 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:38:01,676 INFO L82 PathProgramCache]: Analyzing trace with hash 507711532, now seen corresponding path program 1 times [2018-09-10 10:38:01,676 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:38:01,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:38:01,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:01,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:38:01,677 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:38:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 202 proven. 87 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 10:38:02,800 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:38:02,800 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:38:02,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:02,814 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:38:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:03,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:38:04,289 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-10 10:38:04,290 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:38:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-10 10:38:05,352 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:38:05,352 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 10:38:05,352 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:38:05,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:38:05,354 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:38:05,354 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 10:38:05,355 INFO L87 Difference]: Start difference. First operand 57101 states and 79468 transitions. Second operand 3 states. [2018-09-10 10:38:10,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:38:10,728 INFO L93 Difference]: Finished difference Result 114196 states and 159293 transitions. [2018-09-10 10:38:10,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:38:10,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1007 [2018-09-10 10:38:10,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:38:11,010 INFO L225 Difference]: With dead ends: 114196 [2018-09-10 10:38:11,011 INFO L226 Difference]: Without dead ends: 57101 [2018-09-10 10:38:11,145 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2019 GetRequests, 2009 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 10:38:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57101 states. [2018-09-10 10:38:12,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57101 to 56266. [2018-09-10 10:38:12,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56266 states. [2018-09-10 10:38:12,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56266 states to 56266 states and 75102 transitions. [2018-09-10 10:38:12,251 INFO L78 Accepts]: Start accepts. Automaton has 56266 states and 75102 transitions. Word has length 1007 [2018-09-10 10:38:12,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:38:12,253 INFO L480 AbstractCegarLoop]: Abstraction has 56266 states and 75102 transitions. [2018-09-10 10:38:12,253 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:38:12,253 INFO L276 IsEmpty]: Start isEmpty. Operand 56266 states and 75102 transitions. [2018-09-10 10:38:12,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2018-09-10 10:38:12,340 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:38:12,341 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:38:12,341 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:38:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1844920849, now seen corresponding path program 1 times [2018-09-10 10:38:12,342 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:38:12,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:38:12,343 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:12,343 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:38:12,343 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:38:12,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:13,740 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-09-10 10:38:13,740 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:38:13,740 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 10:38:13,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:13,748 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:38:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:14,206 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:38:14,937 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-09-10 10:38:14,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:38:15,807 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-09-10 10:38:15,829 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:38:15,829 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:38:15,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:15,846 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:38:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:16,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:38:17,590 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-09-10 10:38:17,590 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:38:18,499 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-09-10 10:38:18,502 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:38:18,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 10:38:18,503 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:38:18,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:38:18,505 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:38:18,506 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 10:38:18,506 INFO L87 Difference]: Start difference. First operand 56266 states and 75102 transitions. Second operand 9 states. [2018-09-10 10:38:32,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:38:32,412 INFO L93 Difference]: Finished difference Result 131775 states and 193039 transitions. [2018-09-10 10:38:32,412 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-10 10:38:32,412 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1075 [2018-09-10 10:38:32,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:38:32,749 INFO L225 Difference]: With dead ends: 131775 [2018-09-10 10:38:32,749 INFO L226 Difference]: Without dead ends: 75515 [2018-09-10 10:38:32,881 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4320 GetRequests, 4298 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2018-09-10 10:38:32,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75515 states. [2018-09-10 10:38:35,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75515 to 74175. [2018-09-10 10:38:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74175 states. [2018-09-10 10:38:35,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74175 states to 74175 states and 98944 transitions. [2018-09-10 10:38:35,550 INFO L78 Accepts]: Start accepts. Automaton has 74175 states and 98944 transitions. Word has length 1075 [2018-09-10 10:38:35,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:38:35,551 INFO L480 AbstractCegarLoop]: Abstraction has 74175 states and 98944 transitions. [2018-09-10 10:38:35,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:38:35,551 INFO L276 IsEmpty]: Start isEmpty. Operand 74175 states and 98944 transitions. [2018-09-10 10:38:35,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2018-09-10 10:38:35,803 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:38:35,804 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:38:35,805 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:38:35,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1922611680, now seen corresponding path program 1 times [2018-09-10 10:38:35,806 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:38:35,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:38:35,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:35,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:38:35,807 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:38:35,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:38,501 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 517 proven. 262 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-09-10 10:38:38,502 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:38:38,502 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:38:38,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:38,510 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:38:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:39,045 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:38:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 692 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-09-10 10:38:40,620 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:38:41,773 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 629 proven. 108 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-09-10 10:38:41,795 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:38:41,795 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 10:38:41,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:38:41,815 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:38:42,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:38:42,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:38:43,769 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 692 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-09-10 10:38:43,769 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:38:44,629 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 629 proven. 108 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-09-10 10:38:44,632 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 10:38:44,634 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-10 10:38:44,634 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 10:38:44,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 10:38:44,635 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 10:38:44,636 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-10 10:38:44,636 INFO L87 Difference]: Start difference. First operand 74175 states and 98944 transitions. Second operand 9 states. [2018-09-10 10:38:59,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:38:59,970 INFO L93 Difference]: Finished difference Result 190180 states and 260773 transitions. [2018-09-10 10:38:59,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-09-10 10:38:59,971 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1322 [2018-09-10 10:38:59,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:39:00,395 INFO L225 Difference]: With dead ends: 190180 [2018-09-10 10:39:00,396 INFO L226 Difference]: Without dead ends: 93910 [2018-09-10 10:39:00,650 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5337 GetRequests, 5299 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2018-09-10 10:39:00,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93910 states. [2018-09-10 10:39:02,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93910 to 92450. [2018-09-10 10:39:02,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92450 states. [2018-09-10 10:39:02,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92450 states to 92450 states and 103985 transitions. [2018-09-10 10:39:02,801 INFO L78 Accepts]: Start accepts. Automaton has 92450 states and 103985 transitions. Word has length 1322 [2018-09-10 10:39:02,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:39:02,802 INFO L480 AbstractCegarLoop]: Abstraction has 92450 states and 103985 transitions. [2018-09-10 10:39:02,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 10:39:02,802 INFO L276 IsEmpty]: Start isEmpty. Operand 92450 states and 103985 transitions. [2018-09-10 10:39:02,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1576 [2018-09-10 10:39:02,925 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:39:02,926 INFO L376 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:39:02,926 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:39:02,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1385226556, now seen corresponding path program 1 times [2018-09-10 10:39:02,927 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:39:02,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:39:02,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:39:02,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:39:02,928 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:39:03,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:39:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 764 proven. 103 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-10 10:39:05,141 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:39:05,141 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:39:05,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:39:05,150 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:39:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:39:05,784 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:39:07,201 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 745 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-09-10 10:39:07,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:39:08,518 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 745 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2018-09-10 10:39:08,542 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:39:08,542 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-10 10:39:08,543 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:39:08,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:39:08,545 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:39:08,545 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 10:39:08,545 INFO L87 Difference]: Start difference. First operand 92450 states and 103985 transitions. Second operand 3 states. [2018-09-10 10:39:12,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:39:12,908 INFO L93 Difference]: Finished difference Result 184884 states and 207946 transitions. [2018-09-10 10:39:12,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:39:12,909 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1575 [2018-09-10 10:39:12,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:39:13,182 INFO L225 Difference]: With dead ends: 184884 [2018-09-10 10:39:13,182 INFO L226 Difference]: Without dead ends: 92445 [2018-09-10 10:39:13,347 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3155 GetRequests, 3145 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-10 10:39:13,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92445 states. [2018-09-10 10:39:15,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92445 to 88167. [2018-09-10 10:39:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88167 states. [2018-09-10 10:39:15,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88167 states to 88167 states and 96162 transitions. [2018-09-10 10:39:15,424 INFO L78 Accepts]: Start accepts. Automaton has 88167 states and 96162 transitions. Word has length 1575 [2018-09-10 10:39:15,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:39:15,426 INFO L480 AbstractCegarLoop]: Abstraction has 88167 states and 96162 transitions. [2018-09-10 10:39:15,427 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:39:15,427 INFO L276 IsEmpty]: Start isEmpty. Operand 88167 states and 96162 transitions. [2018-09-10 10:39:15,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1653 [2018-09-10 10:39:15,563 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 10:39:15,564 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 10:39:15,565 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 10:39:15,565 INFO L82 PathProgramCache]: Analyzing trace with hash -901787170, now seen corresponding path program 1 times [2018-09-10 10:39:15,566 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 10:39:15,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:39:15,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:39:15,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 10:39:15,567 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 10:39:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:39:18,056 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 836 proven. 74 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-10 10:39:18,057 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 10:39:18,057 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 10:39:18,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 10:39:18,065 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 10:39:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 10:39:18,696 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 10:39:20,236 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-10 10:39:20,237 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 10:39:21,680 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-10 10:39:21,702 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-10 10:39:21,702 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-10 10:39:21,703 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 10:39:21,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 10:39:21,704 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 10:39:21,704 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:39:21,704 INFO L87 Difference]: Start difference. First operand 88167 states and 96162 transitions. Second operand 3 states. [2018-09-10 10:39:25,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 10:39:25,883 INFO L93 Difference]: Finished difference Result 173716 states and 189601 transitions. [2018-09-10 10:39:25,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 10:39:25,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1652 [2018-09-10 10:39:25,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 10:39:25,886 INFO L225 Difference]: With dead ends: 173716 [2018-09-10 10:39:25,886 INFO L226 Difference]: Without dead ends: 0 [2018-09-10 10:39:26,119 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3309 GetRequests, 3303 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-10 10:39:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-10 10:39:26,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-10 10:39:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-10 10:39:26,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-10 10:39:26,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1652 [2018-09-10 10:39:26,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 10:39:26,122 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-10 10:39:26,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 10:39:26,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-10 10:39:26,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-10 10:39:26,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-10 10:39:28,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:28,993 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:28,997 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:28,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:28,998 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:28,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:28,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,005 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,049 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,057 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,059 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,067 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,068 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,075 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,076 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,077 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,082 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,088 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,128 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,129 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,198 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,199 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,256 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,422 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,429 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,527 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,556 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,749 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,815 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:29,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,043 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,044 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,839 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:30,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,014 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,035 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:31,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,810 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,820 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,945 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,968 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:32,973 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,086 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,143 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,202 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,234 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,333 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,537 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,595 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,606 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,646 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:33,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,104 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,220 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,273 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,343 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,377 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:34,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,025 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,141 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,552 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,553 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,590 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,591 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:35,990 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,062 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,107 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,146 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,183 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,477 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,730 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,754 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,800 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,877 WARN L175 SmtUtils]: Spent 8.01 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1072 [2018-09-10 10:39:36,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,950 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,975 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,981 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,987 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,988 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,995 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:36,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,026 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,027 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,032 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,091 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,123 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,180 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,181 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,184 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,497 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,514 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,515 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,604 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,964 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:37,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,217 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,469 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,898 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,901 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,928 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,957 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,966 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:38,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,051 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,127 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,289 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,303 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,452 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,470 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,510 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,770 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,894 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:39,946 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,114 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,132 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,133 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,185 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,219 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,259 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,292 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,417 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,790 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:40,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,011 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,142 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,368 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,530 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,613 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,744 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,822 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,837 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,872 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:41,967 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,004 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,286 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,342 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,389 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,412 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,502 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,526 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,549 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-10 10:39:42,667 WARN L175 SmtUtils]: Spent 5.79 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1072 [2018-09-10 10:39:46,081 WARN L175 SmtUtils]: Spent 3.33 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 Received shutdown request... [2018-09-10 10:39:48,552 WARN L183 SmtUtils]: Removed 3 from assertion stack [2018-09-10 10:39:48,552 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-10 10:39:48,553 INFO L168 Benchmark]: Toolchain (without parser) took 208973.13 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -6.6 MB). Peak memory consumption was 3.0 GB. Max. memory is 7.1 GB. [2018-09-10 10:39:48,554 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 10:39:48,555 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2290.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-09-10 10:39:48,556 INFO L168 Benchmark]: Boogie Procedure Inliner took 155.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2018-09-10 10:39:48,557 INFO L168 Benchmark]: Boogie Preprocessor took 642.02 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 839.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2018-09-10 10:39:48,559 INFO L168 Benchmark]: RCFGBuilder took 11438.40 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 172.0 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -54.0 MB). Peak memory consumption was 709.4 MB. Max. memory is 7.1 GB. [2018-09-10 10:39:48,559 INFO L168 Benchmark]: TraceAbstraction took 194440.37 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 1.4 GB in the end (delta: 903.6 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-10 10:39:48,564 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 2290.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 155.01 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 642.02 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 839.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11438.40 ms. Allocated memory was 2.4 GB in the beginning and 2.5 GB in the end (delta: 172.0 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -54.0 MB). Peak memory consumption was 709.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194440.37 ms. Allocated memory was 2.5 GB in the beginning and 4.0 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 1.4 GB in the end (delta: 903.6 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4781]: 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 332. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label28_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_10-39-48-578.csv Completed graceful shutdown