java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -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-dd2f093 [2018-07-24 13:00:23,122 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 13:00:23,124 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 13:00:23,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 13:00:23,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 13:00:23,137 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 13:00:23,139 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 13:00:23,140 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 13:00:23,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 13:00:23,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 13:00:23,144 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 13:00:23,144 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 13:00:23,145 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 13:00:23,146 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 13:00:23,147 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 13:00:23,148 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 13:00:23,149 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 13:00:23,151 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 13:00:23,153 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 13:00:23,154 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 13:00:23,155 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 13:00:23,157 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 13:00:23,159 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 13:00:23,160 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 13:00:23,160 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 13:00:23,161 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 13:00:23,162 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 13:00:23,163 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 13:00:23,164 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 13:00:23,165 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 13:00:23,165 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 13:00:23,169 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 13:00:23,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 13:00:23,170 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 13:00:23,174 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 13:00:23,175 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 13:00:23,175 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 [2018-07-24 13:00:23,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 13:00:23,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 13:00:23,210 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 13:00:23,211 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 13:00:23,211 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 13:00:23,212 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 13:00:23,212 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 13:00:23,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 13:00:23,212 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 13:00:23,212 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 13:00:23,213 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 13:00:23,214 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 13:00:23,214 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 13:00:23,214 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 13:00:23,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 13:00:23,215 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 13:00:23,215 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 13:00:23,215 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 13:00:23,215 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 13:00:23,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 13:00:23,216 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 13:00:23,216 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 13:00:23,216 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 13:00:23,216 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 13:00:23,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 13:00:23,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 13:00:23,219 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 13:00:23,219 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 13:00:23,219 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 13:00:23,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 13:00:23,220 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 13:00:23,220 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 13:00:23,220 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 13:00:23,266 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 13:00:23,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 13:00:23,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 13:00:23,288 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 13:00:23,288 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 13:00:23,289 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c [2018-07-24 13:00:23,630 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515655f1e/0594a419058946568103b309758f510d/FLAGbf0366a35 [2018-07-24 13:00:24,125 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 13:00:24,126 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label28_true-unreach-call.c [2018-07-24 13:00:24,171 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515655f1e/0594a419058946568103b309758f510d/FLAGbf0366a35 [2018-07-24 13:00:24,193 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/515655f1e/0594a419058946568103b309758f510d [2018-07-24 13:00:24,207 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 13:00:24,209 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 13:00:24,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 13:00:24,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 13:00:24,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 13:00:24,223 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:00:24" (1/1) ... [2018-07-24 13:00:24,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51dc4ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:24, skipping insertion in model container [2018-07-24 13:00:24,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 01:00:24" (1/1) ... [2018-07-24 13:00:24,592 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 13:00:25,745 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 13:00:25,766 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 13:00:26,643 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 13:00:26,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26 WrapperNode [2018-07-24 13:00:26,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 13:00:26,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 13:00:26,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 13:00:26,794 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 13:00:26,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:26,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:26,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 13:00:26,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 13:00:26,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 13:00:26,929 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 13:00:26,940 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:26,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:26,963 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:26,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:27,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:27,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:27,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (1/1) ... [2018-07-24 13:00:27,537 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 13:00:27,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 13:00:27,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 13:00:27,538 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 13:00:27,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (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 [2018-07-24 13:00:27,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 13:00:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 13:00:27,610 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 [2018-07-24 13:00:27,610 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 [2018-07-24 13:00:27,610 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 [2018-07-24 13:00:27,610 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 [2018-07-24 13:00:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 13:00:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 13:00:27,611 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 [2018-07-24 13:00:27,611 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 [2018-07-24 13:00:27,611 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 13:00:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 13:00:27,612 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 [2018-07-24 13:00:27,612 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 [2018-07-24 13:00:38,591 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 13:00:38,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:00:38 BoogieIcfgContainer [2018-07-24 13:00:38,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 13:00:38,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 13:00:38,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 13:00:38,596 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 13:00:38,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 01:00:24" (1/3) ... [2018-07-24 13:00:38,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e2a180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:00:38, skipping insertion in model container [2018-07-24 13:00:38,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 01:00:26" (2/3) ... [2018-07-24 13:00:38,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e2a180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 01:00:38, skipping insertion in model container [2018-07-24 13:00:38,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 01:00:38" (3/3) ... [2018-07-24 13:00:38,600 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label28_true-unreach-call.c [2018-07-24 13:00:38,609 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 13:00:38,619 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 13:00:38,685 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 13:00:38,686 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 13:00:38,686 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 13:00:38,686 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 13:00:38,687 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 13:00:38,687 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 13:00:38,687 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 13:00:38,687 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 13:00:38,687 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 13:00:38,728 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-07-24 13:00:38,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 822 [2018-07-24 13:00:38,787 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:00:38,789 INFO L353 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] [2018-07-24 13:00:38,790 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:00:38,796 INFO L82 PathProgramCache]: Analyzing trace with hash -1546137628, now seen corresponding path program 1 times [2018-07-24 13:00:38,799 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:00:38,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:00:38,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:00:38,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:00:38,848 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:00:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:00:40,325 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 13:00:41,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:00:41,393 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 13:00:41,393 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 13:00:41,394 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:00:41,401 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 13:00:41,414 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 13:00:41,415 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 13:00:41,417 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-07-24 13:00:48,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:00:48,920 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-07-24 13:00:48,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 13:00:48,931 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 821 [2018-07-24 13:00:48,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:00:48,971 INFO L225 Difference]: With dead ends: 2647 [2018-07-24 13:00:48,972 INFO L226 Difference]: Without dead ends: 1738 [2018-07-24 13:00:48,982 INFO L573 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 [2018-07-24 13:00:49,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-07-24 13:00:49,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-07-24 13:00:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-07-24 13:00:49,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3275 transitions. [2018-07-24 13:00:49,146 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3275 transitions. Word has length 821 [2018-07-24 13:00:49,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:00:49,150 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 3275 transitions. [2018-07-24 13:00:49,151 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 13:00:49,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3275 transitions. [2018-07-24 13:00:49,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 832 [2018-07-24 13:00:49,180 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:00:49,181 INFO L353 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] [2018-07-24 13:00:49,182 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:00:49,182 INFO L82 PathProgramCache]: Analyzing trace with hash 75754765, now seen corresponding path program 1 times [2018-07-24 13:00:49,183 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:00:49,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:00:49,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:00:49,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:00:49,185 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:00:49,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:00:49,489 WARN L169 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 13:00:49,828 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:00:49,829 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 13:00:49,829 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-24 13:00:49,829 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:00:49,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 13:00:49,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 13:00:49,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-07-24 13:00:49,833 INFO L87 Difference]: Start difference. First operand 1738 states and 3275 transitions. Second operand 5 states. [2018-07-24 13:00:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:00:59,813 INFO L93 Difference]: Finished difference Result 5344 states and 10161 transitions. [2018-07-24 13:00:59,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 13:00:59,813 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 831 [2018-07-24 13:00:59,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:00:59,840 INFO L225 Difference]: With dead ends: 5344 [2018-07-24 13:00:59,840 INFO L226 Difference]: Without dead ends: 3612 [2018-07-24 13:00:59,847 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 13:00:59,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3612 states. [2018-07-24 13:00:59,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3612 to 3583. [2018-07-24 13:00:59,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3583 states. [2018-07-24 13:00:59,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 6259 transitions. [2018-07-24 13:00:59,982 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 6259 transitions. Word has length 831 [2018-07-24 13:00:59,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:00:59,983 INFO L471 AbstractCegarLoop]: Abstraction has 3583 states and 6259 transitions. [2018-07-24 13:00:59,983 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 13:00:59,983 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 6259 transitions. [2018-07-24 13:01:00,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 881 [2018-07-24 13:01:00,006 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:01:00,007 INFO L353 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] [2018-07-24 13:01:00,007 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:01:00,008 INFO L82 PathProgramCache]: Analyzing trace with hash -2061056699, now seen corresponding path program 1 times [2018-07-24 13:01:00,008 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:01:00,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:00,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:00,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:00,010 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:01:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:00,580 WARN L169 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 13:01:01,500 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:01,501 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 13:01:01,501 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 13:01:01,502 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:01:01,507 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 13:01:01,508 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 13:01:01,508 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 13:01:01,508 INFO L87 Difference]: Start difference. First operand 3583 states and 6259 transitions. Second operand 6 states. [2018-07-24 13:01:08,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:01:08,709 INFO L93 Difference]: Finished difference Result 11013 states and 19692 transitions. [2018-07-24 13:01:08,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 13:01:08,710 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 880 [2018-07-24 13:01:08,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:01:08,754 INFO L225 Difference]: With dead ends: 11013 [2018-07-24 13:01:08,754 INFO L226 Difference]: Without dead ends: 7436 [2018-07-24 13:01:08,767 INFO L573 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 [2018-07-24 13:01:08,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7436 states. [2018-07-24 13:01:08,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7436 to 7346. [2018-07-24 13:01:08,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7346 states. [2018-07-24 13:01:08,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7346 states to 7346 states and 12279 transitions. [2018-07-24 13:01:08,999 INFO L78 Accepts]: Start accepts. Automaton has 7346 states and 12279 transitions. Word has length 880 [2018-07-24 13:01:08,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:01:08,999 INFO L471 AbstractCegarLoop]: Abstraction has 7346 states and 12279 transitions. [2018-07-24 13:01:09,000 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 13:01:09,000 INFO L276 IsEmpty]: Start isEmpty. Operand 7346 states and 12279 transitions. [2018-07-24 13:01:09,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2018-07-24 13:01:09,030 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:01:09,030 INFO L353 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] [2018-07-24 13:01:09,031 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:01:09,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1965877592, now seen corresponding path program 1 times [2018-07-24 13:01:09,031 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:01:09,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:09,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:09,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:09,033 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:01:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:10,340 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:10,341 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:01:10,341 INFO L191 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 [2018-07-24 13:01:10,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:10,359 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:01:10,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:10,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:01:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:11,615 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:01:12,373 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:12,398 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:01:12,399 INFO L191 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 [2018-07-24 13:01:12,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:12,415 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:01:13,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:13,219 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:01:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:13,648 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:01:14,467 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:14,469 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 13:01:14,470 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-07-24 13:01:14,470 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 13:01:14,472 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 13:01:14,472 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 13:01:14,472 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-07-24 13:01:14,473 INFO L87 Difference]: Start difference. First operand 7346 states and 12279 transitions. Second operand 9 states. [2018-07-24 13:01:38,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:01:38,658 INFO L93 Difference]: Finished difference Result 36748 states and 75347 transitions. [2018-07-24 13:01:38,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2018-07-24 13:01:38,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 889 [2018-07-24 13:01:38,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:01:38,866 INFO L225 Difference]: With dead ends: 36748 [2018-07-24 13:01:38,867 INFO L226 Difference]: Without dead ends: 29408 [2018-07-24 13:01:38,933 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3650 GetRequests, 3589 SyntacticMatches, 1 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=710, Invalid=3072, Unknown=0, NotChecked=0, Total=3782 [2018-07-24 13:01:38,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29408 states. [2018-07-24 13:01:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29408 to 28392. [2018-07-24 13:01:40,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28392 states. [2018-07-24 13:01:40,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28392 states to 28392 states and 41233 transitions. [2018-07-24 13:01:40,487 INFO L78 Accepts]: Start accepts. Automaton has 28392 states and 41233 transitions. Word has length 889 [2018-07-24 13:01:40,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:01:40,488 INFO L471 AbstractCegarLoop]: Abstraction has 28392 states and 41233 transitions. [2018-07-24 13:01:40,488 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 13:01:40,489 INFO L276 IsEmpty]: Start isEmpty. Operand 28392 states and 41233 transitions. [2018-07-24 13:01:40,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2018-07-24 13:01:40,628 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:01:40,629 INFO L353 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] [2018-07-24 13:01:40,629 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:01:40,630 INFO L82 PathProgramCache]: Analyzing trace with hash 634393197, now seen corresponding path program 1 times [2018-07-24 13:01:40,630 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:01:40,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:40,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:40,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:40,634 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:01:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:41,063 WARN L169 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 13:01:41,981 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:41,981 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 13:01:41,982 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 13:01:41,982 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:01:41,983 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 13:01:41,983 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 13:01:41,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 13:01:41,984 INFO L87 Difference]: Start difference. First operand 28392 states and 41233 transitions. Second operand 6 states. [2018-07-24 13:01:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:01:49,667 INFO L93 Difference]: Finished difference Result 71275 states and 109525 transitions. [2018-07-24 13:01:49,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 13:01:49,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 900 [2018-07-24 13:01:49,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:01:49,822 INFO L225 Difference]: With dead ends: 71275 [2018-07-24 13:01:49,822 INFO L226 Difference]: Without dead ends: 42889 [2018-07-24 13:01:49,946 INFO L573 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 [2018-07-24 13:01:50,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42889 states. [2018-07-24 13:01:51,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42889 to 42597. [2018-07-24 13:01:51,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42597 states. [2018-07-24 13:01:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42597 states to 42597 states and 59987 transitions. [2018-07-24 13:01:51,326 INFO L78 Accepts]: Start accepts. Automaton has 42597 states and 59987 transitions. Word has length 900 [2018-07-24 13:01:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:01:51,327 INFO L471 AbstractCegarLoop]: Abstraction has 42597 states and 59987 transitions. [2018-07-24 13:01:51,327 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 13:01:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 42597 states and 59987 transitions. [2018-07-24 13:01:51,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 921 [2018-07-24 13:01:51,440 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:01:51,441 INFO L353 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] [2018-07-24 13:01:51,441 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:01:51,441 INFO L82 PathProgramCache]: Analyzing trace with hash -446234224, now seen corresponding path program 1 times [2018-07-24 13:01:51,442 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:01:51,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:51,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:51,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:01:51,443 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:01:51,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:52,477 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:52,477 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:01:52,478 INFO L191 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 [2018-07-24 13:01:52,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:52,491 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:01:52,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:52,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:01:54,112 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:54,112 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:01:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:01:54,611 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:01:54,612 INFO L191 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 [2018-07-24 13:01:54,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:01:54,627 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:01:55,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:01:55,444 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:01:56,629 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 13:01:56,630 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:01:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-07-24 13:01:57,552 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-07-24 13:01:57,552 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 17 [2018-07-24 13:01:57,553 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:01:57,555 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 13:01:57,556 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 13:01:57,556 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-07-24 13:01:57,556 INFO L87 Difference]: Start difference. First operand 42597 states and 59987 transitions. Second operand 5 states. [2018-07-24 13:02:04,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:02:04,296 INFO L93 Difference]: Finished difference Result 99882 states and 150519 transitions. [2018-07-24 13:02:04,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 13:02:04,297 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 920 [2018-07-24 13:02:04,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:02:04,553 INFO L225 Difference]: With dead ends: 99882 [2018-07-24 13:02:04,554 INFO L226 Difference]: Without dead ends: 57291 [2018-07-24 13:02:04,667 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3685 GetRequests, 3668 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2018-07-24 13:02:04,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57291 states. [2018-07-24 13:02:06,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57291 to 57101. [2018-07-24 13:02:06,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57101 states. [2018-07-24 13:02:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57101 states to 57101 states and 79468 transitions. [2018-07-24 13:02:06,443 INFO L78 Accepts]: Start accepts. Automaton has 57101 states and 79468 transitions. Word has length 920 [2018-07-24 13:02:06,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:02:06,443 INFO L471 AbstractCegarLoop]: Abstraction has 57101 states and 79468 transitions. [2018-07-24 13:02:06,443 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 13:02:06,444 INFO L276 IsEmpty]: Start isEmpty. Operand 57101 states and 79468 transitions. [2018-07-24 13:02:06,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1008 [2018-07-24 13:02:06,614 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:02:06,614 INFO L353 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] [2018-07-24 13:02:06,615 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:02:06,615 INFO L82 PathProgramCache]: Analyzing trace with hash 507711532, now seen corresponding path program 1 times [2018-07-24 13:02:06,616 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:02:06,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:02:06,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:06,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:02:06,617 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:02:06,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:07,431 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 202 proven. 87 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-07-24 13:02:07,432 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:02:07,432 INFO L191 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 [2018-07-24 13:02:07,440 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:07,441 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:02:07,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:07,850 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:02:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-07-24 13:02:08,891 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:02:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-07-24 13:02:09,830 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 13:02:09,831 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-07-24 13:02:09,831 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:02:09,832 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 13:02:09,832 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 13:02:09,832 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 13:02:09,833 INFO L87 Difference]: Start difference. First operand 57101 states and 79468 transitions. Second operand 3 states. [2018-07-24 13:02:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:02:15,109 INFO L93 Difference]: Finished difference Result 114196 states and 159293 transitions. [2018-07-24 13:02:15,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 13:02:15,109 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1007 [2018-07-24 13:02:15,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:02:15,296 INFO L225 Difference]: With dead ends: 114196 [2018-07-24 13:02:15,296 INFO L226 Difference]: Without dead ends: 57101 [2018-07-24 13:02:15,384 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2019 GetRequests, 2009 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 13:02:15,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57101 states. [2018-07-24 13:02:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57101 to 56266. [2018-07-24 13:02:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56266 states. [2018-07-24 13:02:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56266 states to 56266 states and 75102 transitions. [2018-07-24 13:02:16,480 INFO L78 Accepts]: Start accepts. Automaton has 56266 states and 75102 transitions. Word has length 1007 [2018-07-24 13:02:16,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:02:16,481 INFO L471 AbstractCegarLoop]: Abstraction has 56266 states and 75102 transitions. [2018-07-24 13:02:16,481 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 13:02:16,481 INFO L276 IsEmpty]: Start isEmpty. Operand 56266 states and 75102 transitions. [2018-07-24 13:02:16,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1076 [2018-07-24 13:02:16,632 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:02:16,633 INFO L353 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] [2018-07-24 13:02:16,634 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:02:16,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1844920849, now seen corresponding path program 1 times [2018-07-24 13:02:16,634 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:02:16,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:02:16,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:16,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:02:16,636 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:02:16,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 13:02:18,498 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:02:18,499 INFO L191 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 [2018-07-24 13:02:18,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:18,507 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:02:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:18,936 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:02:19,352 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 13:02:19,352 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:02:20,217 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 13:02:20,239 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:02:20,239 INFO L191 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 [2018-07-24 13:02:20,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:20,255 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:02:21,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:21,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:02:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 343 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 13:02:22,017 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:02:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 297 proven. 48 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-07-24 13:02:22,530 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 13:02:22,531 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-07-24 13:02:22,531 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 13:02:22,534 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 13:02:22,534 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 13:02:22,534 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 13:02:22,534 INFO L87 Difference]: Start difference. First operand 56266 states and 75102 transitions. Second operand 9 states. [2018-07-24 13:02:36,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:02:36,405 INFO L93 Difference]: Finished difference Result 131775 states and 193039 transitions. [2018-07-24 13:02:36,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-07-24 13:02:36,405 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1075 [2018-07-24 13:02:36,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:02:36,722 INFO L225 Difference]: With dead ends: 131775 [2018-07-24 13:02:36,722 INFO L226 Difference]: Without dead ends: 75515 [2018-07-24 13:02:36,834 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4320 GetRequests, 4298 SyntacticMatches, 5 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=232, Unknown=0, NotChecked=0, Total=342 [2018-07-24 13:02:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75515 states. [2018-07-24 13:02:38,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75515 to 74175. [2018-07-24 13:02:38,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74175 states. [2018-07-24 13:02:38,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74175 states to 74175 states and 98944 transitions. [2018-07-24 13:02:38,736 INFO L78 Accepts]: Start accepts. Automaton has 74175 states and 98944 transitions. Word has length 1075 [2018-07-24 13:02:38,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:02:38,737 INFO L471 AbstractCegarLoop]: Abstraction has 74175 states and 98944 transitions. [2018-07-24 13:02:38,737 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 13:02:38,737 INFO L276 IsEmpty]: Start isEmpty. Operand 74175 states and 98944 transitions. [2018-07-24 13:02:38,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1323 [2018-07-24 13:02:38,955 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:02:38,956 INFO L353 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] [2018-07-24 13:02:38,957 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:02:38,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1922611680, now seen corresponding path program 1 times [2018-07-24 13:02:38,957 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:02:38,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:02:38,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:38,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:02:38,959 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:02:39,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:40,481 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 517 proven. 262 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-07-24 13:02:40,482 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:02:40,482 INFO L191 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 [2018-07-24 13:02:40,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:40,490 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:02:41,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:41,029 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:02:41,795 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 692 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-07-24 13:02:41,795 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:02:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 629 proven. 108 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-07-24 13:02:42,833 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:02:42,834 INFO L191 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 [2018-07-24 13:02:42,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:02:42,853 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:02:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:02:44,050 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:02:44,738 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 692 proven. 2 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2018-07-24 13:02:44,738 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:02:45,499 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 629 proven. 108 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-07-24 13:02:45,502 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 13:02:45,504 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-07-24 13:02:45,504 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 13:02:45,506 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-24 13:02:45,506 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-24 13:02:45,506 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-07-24 13:02:45,507 INFO L87 Difference]: Start difference. First operand 74175 states and 98944 transitions. Second operand 9 states. [2018-07-24 13:03:00,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:03:00,825 INFO L93 Difference]: Finished difference Result 190180 states and 260773 transitions. [2018-07-24 13:03:00,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-07-24 13:03:00,826 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1322 [2018-07-24 13:03:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:03:01,232 INFO L225 Difference]: With dead ends: 190180 [2018-07-24 13:03:01,232 INFO L226 Difference]: Without dead ends: 93910 [2018-07-24 13:03:01,504 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5337 GetRequests, 5299 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=304, Invalid=1102, Unknown=0, NotChecked=0, Total=1406 [2018-07-24 13:03:01,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93910 states. [2018-07-24 13:03:02,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93910 to 92450. [2018-07-24 13:03:02,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92450 states. [2018-07-24 13:03:02,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92450 states to 92450 states and 103985 transitions. [2018-07-24 13:03:02,974 INFO L78 Accepts]: Start accepts. Automaton has 92450 states and 103985 transitions. Word has length 1322 [2018-07-24 13:03:02,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:03:02,975 INFO L471 AbstractCegarLoop]: Abstraction has 92450 states and 103985 transitions. [2018-07-24 13:03:02,975 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-24 13:03:02,975 INFO L276 IsEmpty]: Start isEmpty. Operand 92450 states and 103985 transitions. [2018-07-24 13:03:03,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1784 [2018-07-24 13:03:03,078 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:03:03,078 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 13:03:03,079 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:03:03,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1083120162, now seen corresponding path program 1 times [2018-07-24 13:03:03,079 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:03:03,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:03:03,080 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:03:03,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:03:03,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:03:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:03:04,769 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 13:03:05,075 WARN L169 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 13:03:08,216 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 1277 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 13:03:08,217 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:03:08,217 INFO L191 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 [2018-07-24 13:03:08,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:03:08,226 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:03:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:03:08,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:03:10,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 953 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-07-24 13:03:10,461 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:03:11,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 953 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-07-24 13:03:11,925 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 13:03:11,926 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-07-24 13:03:11,926 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:03:11,928 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 13:03:11,928 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 13:03:11,928 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 13:03:11,929 INFO L87 Difference]: Start difference. First operand 92450 states and 103985 transitions. Second operand 3 states. [2018-07-24 13:03:16,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:03:16,285 INFO L93 Difference]: Finished difference Result 184884 states and 207946 transitions. [2018-07-24 13:03:16,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 13:03:16,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1783 [2018-07-24 13:03:16,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:03:16,637 INFO L225 Difference]: With dead ends: 184884 [2018-07-24 13:03:16,638 INFO L226 Difference]: Without dead ends: 92445 [2018-07-24 13:03:16,821 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3576 GetRequests, 3565 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-07-24 13:03:16,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92445 states. [2018-07-24 13:03:17,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92445 to 88167. [2018-07-24 13:03:17,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88167 states. [2018-07-24 13:03:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88167 states to 88167 states and 96162 transitions. [2018-07-24 13:03:18,147 INFO L78 Accepts]: Start accepts. Automaton has 88167 states and 96162 transitions. Word has length 1783 [2018-07-24 13:03:18,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:03:18,148 INFO L471 AbstractCegarLoop]: Abstraction has 88167 states and 96162 transitions. [2018-07-24 13:03:18,148 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 13:03:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 88167 states and 96162 transitions. [2018-07-24 13:03:18,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1653 [2018-07-24 13:03:18,238 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 13:03:18,239 INFO L353 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] [2018-07-24 13:03:18,239 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-24 13:03:18,240 INFO L82 PathProgramCache]: Analyzing trace with hash -901787170, now seen corresponding path program 1 times [2018-07-24 13:03:18,240 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 13:03:18,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:03:18,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:03:18,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 13:03:18,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 13:03:18,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:03:20,182 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 836 proven. 74 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-07-24 13:03:20,182 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 13:03:20,182 INFO L191 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 [2018-07-24 13:03:20,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 13:03:20,191 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 13:03:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 13:03:20,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 13:03:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 13:03:22,391 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 13:03:23,963 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 819 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-07-24 13:03:23,985 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 13:03:23,986 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-07-24 13:03:23,986 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 13:03:23,988 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 13:03:23,988 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 13:03:23,988 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-07-24 13:03:23,988 INFO L87 Difference]: Start difference. First operand 88167 states and 96162 transitions. Second operand 3 states. [2018-07-24 13:03:28,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 13:03:28,590 INFO L93 Difference]: Finished difference Result 173716 states and 189601 transitions. [2018-07-24 13:03:28,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 13:03:28,591 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1652 [2018-07-24 13:03:28,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 13:03:28,596 INFO L225 Difference]: With dead ends: 173716 [2018-07-24 13:03:28,597 INFO L226 Difference]: Without dead ends: 0 [2018-07-24 13:03:28,889 INFO L573 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 [2018-07-24 13:03:28,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-24 13:03:28,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-24 13:03:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-24 13:03:28,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-24 13:03:28,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1652 [2018-07-24 13:03:28,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 13:03:28,892 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-24 13:03:28,892 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 13:03:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-24 13:03:28,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-24 13:03:28,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-24 13:03:29,351 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,358 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,359 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,433 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,453 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,454 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,463 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,464 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,465 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,466 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,473 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,481 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,523 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,532 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,533 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,569 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,570 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,643 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,710 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,834 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,843 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,845 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,958 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,959 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:29,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,293 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,411 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,615 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,634 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,665 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,687 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:30,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,285 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,370 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,427 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,428 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,444 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,528 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:31,908 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,244 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,748 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,760 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,763 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,794 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,830 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,840 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,944 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:32,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,024 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,056 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,134 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,171 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,352 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,390 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,493 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,512 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,596 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,723 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,747 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,772 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,829 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,891 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:33,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,010 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,098 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,115 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,116 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,117 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,166 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,194 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,232 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,438 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,632 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:34,942 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,147 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,383 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,384 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,459 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,460 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,774 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,856 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,907 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,940 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:35,977 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,393 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,419 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,550 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,575 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:36,703 WARN L169 SmtUtils]: Spent 7.48 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1072 [2018-07-24 13:03:38,263 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,264 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,267 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,269 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,270 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,307 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,313 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,315 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,316 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,329 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,334 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,337 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,361 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,378 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,445 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,505 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,508 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,558 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,574 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,680 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,715 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,731 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,732 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,737 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,878 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,897 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,909 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,985 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:38,986 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,332 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,372 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,373 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,385 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,386 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,432 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,635 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,636 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:39,880 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,322 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,325 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,382 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,387 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,396 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,483 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,520 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,521 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,529 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,559 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,560 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,594 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,681 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,738 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,802 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,865 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,955 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,961 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:40,974 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,054 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,061 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,196 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,260 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,302 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,495 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,621 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,676 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,709 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,788 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,914 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:41,971 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,095 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,176 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,288 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,306 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,494 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,673 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,841 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,869 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,870 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,871 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:42,938 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,090 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,167 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,309 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,369 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,624 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,677 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,678 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,722 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,746 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,835 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,926 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-24 13:03:43,998 WARN L169 SmtUtils]: Spent 5.82 s on a formula simplification. DAG size of input: 1798 DAG size of output: 1072 [2018-07-24 13:03:47,314 WARN L169 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 [2018-07-24 13:03:59,611 WARN L169 SmtUtils]: Spent 12.28 s on a formula simplification. DAG size of input: 964 DAG size of output: 66 [2018-07-24 13:04:02,761 WARN L169 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 332 DAG size of output: 78 Received shutdown request... [2018-07-24 13:04:04,411 WARN L177 SmtUtils]: Removed 47 from assertion stack [2018-07-24 13:04:04,412 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-07-24 13:04:04,413 INFO L168 Benchmark]: Toolchain (without parser) took 220204.95 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -506.8 MB). Peak memory consumption was 3.1 GB. Max. memory is 7.1 GB. [2018-07-24 13:04:04,414 INFO L168 Benchmark]: CDTParser took 0.50 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. [2018-07-24 13:04:04,415 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2581.29 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: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. [2018-07-24 13:04:04,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 134.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-24 13:04:04,417 INFO L168 Benchmark]: Boogie Preprocessor took 608.53 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 860.9 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 89.1 MB. Max. memory is 7.1 GB. [2018-07-24 13:04:04,418 INFO L168 Benchmark]: RCFGBuilder took 11054.13 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 153.6 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -12.0 MB). Peak memory consumption was 711.0 MB. Max. memory is 7.1 GB. [2018-07-24 13:04:04,419 INFO L168 Benchmark]: TraceAbstraction took 205819.34 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 390.4 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-07-24 13:04:04,424 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 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 2581.29 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: 232.5 MB). Peak memory consumption was 232.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 134.73 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 608.53 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 860.9 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 89.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11054.13 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 153.6 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: -12.0 MB). Peak memory consumption was 711.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 205819.34 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 2.3 GB in the beginning and 1.9 GB in the end (delta: 390.4 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-0-2018-07-24_13-04-04-437.csv Completed graceful shutdown