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/Problem19_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 15:16:07,085 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 15:16:07,087 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 15:16:07,100 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 15:16:07,100 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 15:16:07,101 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 15:16:07,103 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 15:16:07,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 15:16:07,106 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 15:16:07,107 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 15:16:07,108 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 15:16:07,108 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 15:16:07,109 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 15:16:07,110 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 15:16:07,111 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 15:16:07,112 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 15:16:07,113 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 15:16:07,115 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 15:16:07,117 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 15:16:07,119 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 15:16:07,120 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 15:16:07,122 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 15:16:07,125 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 15:16:07,125 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 15:16:07,125 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 15:16:07,126 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 15:16:07,127 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 15:16:07,128 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 15:16:07,129 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 15:16:07,131 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 15:16:07,131 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 15:16:07,131 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 15:16:07,132 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 15:16:07,132 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 15:16:07,133 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 15:16:07,134 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 15:16:07,134 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 15:16:07,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 15:16:07,151 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 15:16:07,152 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 15:16:07,152 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 15:16:07,152 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 15:16:07,152 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 15:16:07,152 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 15:16:07,153 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 15:16:07,153 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 15:16:07,153 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 15:16:07,153 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 15:16:07,154 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 15:16:07,154 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 15:16:07,154 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 15:16:07,155 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 15:16:07,155 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 15:16:07,155 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 15:16:07,155 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 15:16:07,155 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 15:16:07,156 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 15:16:07,156 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 15:16:07,156 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 15:16:07,156 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 15:16:07,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 15:16:07,157 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 15:16:07,157 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 15:16:07,157 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 15:16:07,157 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 15:16:07,158 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 15:16:07,158 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 15:16:07,158 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 15:16:07,158 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 15:16:07,158 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 15:16:07,203 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 15:16:07,216 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 15:16:07,220 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 15:16:07,222 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 15:16:07,223 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 15:16:07,224 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label57_true-unreach-call.c [2018-07-24 15:16:07,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43bed1b83/d8d3bc16f5764d2fb89e6cba77657be8/FLAGab476965c [2018-07-24 15:16:08,198 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 15:16:08,199 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label57_true-unreach-call.c [2018-07-24 15:16:08,256 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43bed1b83/d8d3bc16f5764d2fb89e6cba77657be8/FLAGab476965c [2018-07-24 15:16:08,276 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43bed1b83/d8d3bc16f5764d2fb89e6cba77657be8 [2018-07-24 15:16:08,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 15:16:08,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 15:16:08,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 15:16:08,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 15:16:08,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 15:16:08,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:16:08" (1/1) ... [2018-07-24 15:16:08,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@926c7c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:08, skipping insertion in model container [2018-07-24 15:16:08,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 03:16:08" (1/1) ... [2018-07-24 15:16:08,793 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 15:16:10,457 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 15:16:10,477 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 15:16:11,587 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 15:16:12,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12 WrapperNode [2018-07-24 15:16:12,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 15:16:12,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 15:16:12,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 15:16:12,337 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 15:16:12,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:12,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:12,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 15:16:12,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 15:16:12,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 15:16:12,663 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 15:16:13,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:13,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:14,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:14,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:14,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:14,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:14,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (1/1) ... [2018-07-24 15:16:14,909 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 15:16:14,910 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 15:16:14,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 15:16:14,910 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 15:16:14,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (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 15:16:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 15:16:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 15:16:14,982 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-24 15:16:14,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output5 [2018-07-24 15:16:14,983 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 15:16:14,983 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 15:16:14,983 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-24 15:16:14,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output6 [2018-07-24 15:16:14,983 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 15:16:14,983 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 15:16:14,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 15:16:14,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 15:16:14,984 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 15:16:14,984 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 15:16:14,985 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 15:16:14,985 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 15:16:14,985 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 15:16:14,985 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 15:16:38,184 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 15:16:38,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:16:38 BoogieIcfgContainer [2018-07-24 15:16:38,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 15:16:38,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 15:16:38,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 15:16:38,190 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 15:16:38,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 03:16:08" (1/3) ... [2018-07-24 15:16:38,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afefb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:16:38, skipping insertion in model container [2018-07-24 15:16:38,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 03:16:12" (2/3) ... [2018-07-24 15:16:38,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1afefb3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 03:16:38, skipping insertion in model container [2018-07-24 15:16:38,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 03:16:38" (3/3) ... [2018-07-24 15:16:38,194 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label57_true-unreach-call.c [2018-07-24 15:16:38,203 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 15:16:38,212 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 15:16:38,275 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 15:16:38,276 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 15:16:38,276 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 15:16:38,277 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 15:16:38,277 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 15:16:38,277 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 15:16:38,277 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 15:16:38,277 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 15:16:38,277 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 15:16:38,326 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-07-24 15:16:38,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-07-24 15:16:38,336 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:16:38,337 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] [2018-07-24 15:16:38,337 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:16:38,343 INFO L82 PathProgramCache]: Analyzing trace with hash 679493504, now seen corresponding path program 1 times [2018-07-24 15:16:38,346 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:16:38,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:16:38,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:16:38,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:16:38,397 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:16:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:16:38,868 WARN L169 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 15:16:39,045 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 15:16:39,050 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:16:39,050 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-24 15:16:39,050 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:16:39,057 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 15:16:39,073 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 15:16:39,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 15:16:39,075 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-07-24 15:16:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:16:57,429 INFO L93 Difference]: Finished difference Result 4998 states and 9417 transitions. [2018-07-24 15:16:57,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 15:16:57,432 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-07-24 15:16:57,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:16:57,491 INFO L225 Difference]: With dead ends: 4998 [2018-07-24 15:16:57,492 INFO L226 Difference]: Without dead ends: 3218 [2018-07-24 15:16:57,505 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 15:16:57,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3218 states. [2018-07-24 15:16:57,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3218 to 3215. [2018-07-24 15:16:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3215 states. [2018-07-24 15:16:57,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3215 states to 3215 states and 5854 transitions. [2018-07-24 15:16:57,706 INFO L78 Accepts]: Start accepts. Automaton has 3215 states and 5854 transitions. Word has length 63 [2018-07-24 15:16:57,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:16:57,707 INFO L471 AbstractCegarLoop]: Abstraction has 3215 states and 5854 transitions. [2018-07-24 15:16:57,707 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 15:16:57,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3215 states and 5854 transitions. [2018-07-24 15:16:57,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-07-24 15:16:57,721 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:16:57,721 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] [2018-07-24 15:16:57,722 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:16:57,722 INFO L82 PathProgramCache]: Analyzing trace with hash 189064106, now seen corresponding path program 1 times [2018-07-24 15:16:57,722 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:16:57,724 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:16:57,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:16:57,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:16:57,725 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:16:57,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:16:58,271 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 15:16:58,272 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:16:58,272 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:16:58,272 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:16:58,275 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:16:58,275 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:16:58,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:16:58,276 INFO L87 Difference]: Start difference. First operand 3215 states and 5854 transitions. Second operand 6 states. [2018-07-24 15:17:31,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:17:31,580 INFO L93 Difference]: Finished difference Result 9683 states and 17692 transitions. [2018-07-24 15:17:31,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:17:31,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-07-24 15:17:31,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:17:31,624 INFO L225 Difference]: With dead ends: 9683 [2018-07-24 15:17:31,624 INFO L226 Difference]: Without dead ends: 6474 [2018-07-24 15:17:31,636 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-07-24 15:17:31,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6474 states. [2018-07-24 15:17:31,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6474 to 6371. [2018-07-24 15:17:31,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6371 states. [2018-07-24 15:17:31,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6371 states to 6371 states and 9959 transitions. [2018-07-24 15:17:31,817 INFO L78 Accepts]: Start accepts. Automaton has 6371 states and 9959 transitions. Word has length 135 [2018-07-24 15:17:31,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:17:31,817 INFO L471 AbstractCegarLoop]: Abstraction has 6371 states and 9959 transitions. [2018-07-24 15:17:31,818 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:17:31,818 INFO L276 IsEmpty]: Start isEmpty. Operand 6371 states and 9959 transitions. [2018-07-24 15:17:31,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-24 15:17:31,822 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:17:31,823 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] [2018-07-24 15:17:31,823 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:17:31,823 INFO L82 PathProgramCache]: Analyzing trace with hash 642735413, now seen corresponding path program 1 times [2018-07-24 15:17:31,823 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:17:31,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:17:31,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:17:31,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:17:31,825 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:17:31,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:17:32,153 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 15:17:32,154 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:17:32,154 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:17:32,154 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:17:32,155 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:17:32,155 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:17:32,156 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:17:32,156 INFO L87 Difference]: Start difference. First operand 6371 states and 9959 transitions. Second operand 6 states. [2018-07-24 15:18:00,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:18:00,837 INFO L93 Difference]: Finished difference Result 24553 states and 39540 transitions. [2018-07-24 15:18:00,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 15:18:00,837 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 137 [2018-07-24 15:18:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:18:00,944 INFO L225 Difference]: With dead ends: 24553 [2018-07-24 15:18:00,944 INFO L226 Difference]: Without dead ends: 18188 [2018-07-24 15:18:00,973 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 15:18:00,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18188 states. [2018-07-24 15:18:01,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18188 to 17977. [2018-07-24 15:18:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17977 states. [2018-07-24 15:18:01,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17977 states to 17977 states and 26506 transitions. [2018-07-24 15:18:01,415 INFO L78 Accepts]: Start accepts. Automaton has 17977 states and 26506 transitions. Word has length 137 [2018-07-24 15:18:01,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:18:01,416 INFO L471 AbstractCegarLoop]: Abstraction has 17977 states and 26506 transitions. [2018-07-24 15:18:01,416 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:18:01,416 INFO L276 IsEmpty]: Start isEmpty. Operand 17977 states and 26506 transitions. [2018-07-24 15:18:01,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2018-07-24 15:18:01,428 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:18:01,428 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] [2018-07-24 15:18:01,429 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:18:01,429 INFO L82 PathProgramCache]: Analyzing trace with hash -518951826, now seen corresponding path program 1 times [2018-07-24 15:18:01,429 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:18:01,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:18:01,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:18:01,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:18:01,433 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:18:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:18:01,861 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 15:18:01,861 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:18:01,861 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-24 15:18:01,862 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:18:01,862 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-24 15:18:01,863 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-24 15:18:01,863 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-07-24 15:18:01,863 INFO L87 Difference]: Start difference. First operand 17977 states and 26506 transitions. Second operand 7 states. [2018-07-24 15:18:52,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:18:52,306 INFO L93 Difference]: Finished difference Result 72427 states and 117083 transitions. [2018-07-24 15:18:52,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 15:18:52,307 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 187 [2018-07-24 15:18:52,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:18:52,579 INFO L225 Difference]: With dead ends: 72427 [2018-07-24 15:18:52,579 INFO L226 Difference]: Without dead ends: 54456 [2018-07-24 15:18:52,698 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 15:18:52,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54456 states. [2018-07-24 15:18:53,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54456 to 54054. [2018-07-24 15:18:53,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54054 states. [2018-07-24 15:18:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54054 states to 54054 states and 76322 transitions. [2018-07-24 15:18:54,037 INFO L78 Accepts]: Start accepts. Automaton has 54054 states and 76322 transitions. Word has length 187 [2018-07-24 15:18:54,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:18:54,038 INFO L471 AbstractCegarLoop]: Abstraction has 54054 states and 76322 transitions. [2018-07-24 15:18:54,038 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-24 15:18:54,038 INFO L276 IsEmpty]: Start isEmpty. Operand 54054 states and 76322 transitions. [2018-07-24 15:18:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2018-07-24 15:18:54,046 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:18:54,046 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] [2018-07-24 15:18:54,046 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:18:54,047 INFO L82 PathProgramCache]: Analyzing trace with hash 12339429, now seen corresponding path program 1 times [2018-07-24 15:18:54,047 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:18:54,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:18:54,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:18:54,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:18:54,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:18:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:18:54,345 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-24 15:18:54,743 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 15:18:54,744 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 15:18:54,744 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 15:18:54,744 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:18:54,745 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 15:18:54,745 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 15:18:54,745 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 15:18:54,745 INFO L87 Difference]: Start difference. First operand 54054 states and 76322 transitions. Second operand 6 states. [2018-07-24 15:19:21,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:19:21,849 INFO L93 Difference]: Finished difference Result 144854 states and 218648 transitions. [2018-07-24 15:19:21,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 15:19:21,851 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2018-07-24 15:19:21,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:19:22,164 INFO L225 Difference]: With dead ends: 144854 [2018-07-24 15:19:22,167 INFO L226 Difference]: Without dead ends: 90806 [2018-07-24 15:19:22,291 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 15:19:22,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90806 states. [2018-07-24 15:19:23,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90806 to 90121. [2018-07-24 15:19:23,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90121 states. [2018-07-24 15:19:24,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90121 states to 90121 states and 127711 transitions. [2018-07-24 15:19:24,132 INFO L78 Accepts]: Start accepts. Automaton has 90121 states and 127711 transitions. Word has length 196 [2018-07-24 15:19:24,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:19:24,134 INFO L471 AbstractCegarLoop]: Abstraction has 90121 states and 127711 transitions. [2018-07-24 15:19:24,134 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 15:19:24,134 INFO L276 IsEmpty]: Start isEmpty. Operand 90121 states and 127711 transitions. [2018-07-24 15:19:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-07-24 15:19:24,152 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:19:24,152 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, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 15:19:24,152 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:19:24,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1484053045, now seen corresponding path program 1 times [2018-07-24 15:19:24,153 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:19:24,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:19:24,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:19:24,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:19:24,154 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:19:24,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:19:24,634 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 112 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 15:19:24,635 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:19:24,635 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 15:19:24,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:19:24,654 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:19:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:19:24,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:19:24,892 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2018-07-24 15:19:24,892 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:19:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 112 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-07-24 15:19:25,071 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:19:25,071 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-07-24 15:19:25,071 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:19:25,072 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 15:19:25,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 15:19:25,072 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 15:19:25,073 INFO L87 Difference]: Start difference. First operand 90121 states and 127711 transitions. Second operand 3 states. [2018-07-24 15:19:40,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 15:19:40,735 INFO L93 Difference]: Finished difference Result 209014 states and 312086 transitions. [2018-07-24 15:19:40,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 15:19:40,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 247 [2018-07-24 15:19:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 15:19:41,381 INFO L225 Difference]: With dead ends: 209014 [2018-07-24 15:19:41,381 INFO L226 Difference]: Without dead ends: 118899 [2018-07-24 15:19:41,690 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-07-24 15:19:41,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118899 states. [2018-07-24 15:19:44,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118899 to 118845. [2018-07-24 15:19:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118845 states. [2018-07-24 15:19:45,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118845 states to 118845 states and 167790 transitions. [2018-07-24 15:19:45,014 INFO L78 Accepts]: Start accepts. Automaton has 118845 states and 167790 transitions. Word has length 247 [2018-07-24 15:19:45,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 15:19:45,014 INFO L471 AbstractCegarLoop]: Abstraction has 118845 states and 167790 transitions. [2018-07-24 15:19:45,015 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 15:19:45,015 INFO L276 IsEmpty]: Start isEmpty. Operand 118845 states and 167790 transitions. [2018-07-24 15:19:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-07-24 15:19:45,045 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 15:19:45,045 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, 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, 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] [2018-07-24 15:19:45,045 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 15:19:45,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1731873858, now seen corresponding path program 1 times [2018-07-24 15:19:45,046 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 15:19:45,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:19:45,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:19:45,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 15:19:45,047 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 15:19:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:19:45,464 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 168 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-24 15:19:45,464 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 15:19:45,465 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 15:19:45,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 15:19:45,481 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 15:19:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 15:19:45,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 15:19:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2018-07-24 15:19:45,858 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 15:19:46,125 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-07-24 15:19:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 168 proven. 145 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2018-07-24 15:19:46,358 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 15:19:46,358 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 8 [2018-07-24 15:19:46,358 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 15:19:46,359 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 15:19:46,359 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 15:19:46,359 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-24 15:19:46,360 INFO L87 Difference]: Start difference. First operand 118845 states and 167790 transitions. Second operand 5 states. Received shutdown request... [2018-07-24 15:20:05,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-24 15:20:05,028 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 15:20:05,034 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 15:20:05,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 03:20:05 BoogieIcfgContainer [2018-07-24 15:20:05,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 15:20:05,035 INFO L168 Benchmark]: Toolchain (without parser) took 236745.45 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.8 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -274.4 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 15:20:05,036 INFO L168 Benchmark]: CDTParser took 0.26 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 15:20:05,037 INFO L168 Benchmark]: CACSL2BoogieTranslator took 4043.81 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 199.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -122.3 MB). Peak memory consumption was 489.0 MB. Max. memory is 7.1 GB. [2018-07-24 15:20:05,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 325.78 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. [2018-07-24 15:20:05,038 INFO L168 Benchmark]: Boogie Preprocessor took 2246.61 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 832.0 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -833.3 MB). Peak memory consumption was 127.0 MB. Max. memory is 7.1 GB. [2018-07-24 15:20:05,039 INFO L168 Benchmark]: RCFGBuilder took 23276.14 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 291.5 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 217.1 MB). Peak memory consumption was 998.9 MB. Max. memory is 7.1 GB. [2018-07-24 15:20:05,040 INFO L168 Benchmark]: TraceAbstraction took 206847.76 ms. Allocated memory was 2.9 GB in the beginning and 3.4 GB in the end (delta: 509.6 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 401.9 MB). Peak memory consumption was 911.5 MB. Max. memory is 7.1 GB. [2018-07-24 15:20:05,045 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 4043.81 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 199.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -122.3 MB). Peak memory consumption was 489.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 325.78 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 48.5 MB). Peak memory consumption was 48.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 2246.61 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 832.0 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -833.3 MB). Peak memory consumption was 127.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 23276.14 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 291.5 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 217.1 MB). Peak memory consumption was 998.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206847.76 ms. Allocated memory was 2.9 GB in the beginning and 3.4 GB in the end (delta: 509.6 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 401.9 MB). Peak memory consumption was 911.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 184]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 184). Cancelled while BasicCegarLoop was constructing difference of abstraction (118845states) and interpolant automaton (currently 8 states, 5 states before enhancement), while ReachableStatesComputation was computing reachable states (153995 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 206.7s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 194.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6671 SDtfs, 36223 SDslu, 5312 SDs, 0 SdLazy, 68355 SolverSat, 16660 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 168.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1181 GetRequests, 1133 SyntacticMatches, 5 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=118845occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 7.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 1458 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 1840 NumberOfCodeBlocks, 1840 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2390 ConstructedInterpolants, 0 QuantifiedInterpolants, 1453936 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1033 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1633/2006 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label57_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_15-20-05-060.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label57_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_15-20-05-060.csv Completed graceful shutdown