java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 03:18:35,134 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 03:18:35,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 03:18:35,152 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 03:18:35,152 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 03:18:35,153 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 03:18:35,154 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 03:18:35,161 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 03:18:35,162 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 03:18:35,165 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 03:18:35,166 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 03:18:35,166 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 03:18:35,167 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 03:18:35,167 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 03:18:35,170 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 03:18:35,171 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 03:18:35,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 03:18:35,181 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 03:18:35,182 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 03:18:35,184 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 03:18:35,185 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 03:18:35,188 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 03:18:35,190 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-21 03:18:35,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-21 03:18:35,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-21 03:18:35,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-21 03:18:35,194 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-21 03:18:35,194 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-21 03:18:35,195 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-21 03:18:35,199 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-21 03:18:35,199 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-21 03:18:35,200 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-21 03:18:35,200 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 03:18:35,200 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 03:18:35,201 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 03:18:35,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 03:18:35,202 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 03:18:35,228 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 03:18:35,228 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 03:18:35,229 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 03:18:35,229 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 03:18:35,229 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 03:18:35,230 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 03:18:35,233 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 03:18:35,233 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 03:18:35,233 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 03:18:35,234 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 03:18:35,234 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 03:18:35,234 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 03:18:35,235 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 03:18:35,235 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 03:18:35,235 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 03:18:35,235 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 03:18:35,235 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 03:18:35,236 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 03:18:35,237 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 03:18:35,237 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 03:18:35,237 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 03:18:35,237 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 03:18:35,238 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 03:18:35,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 03:18:35,238 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 03:18:35,238 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 03:18:35,238 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 03:18:35,239 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 03:18:35,239 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 03:18:35,239 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 03:18:35,239 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 03:18:35,239 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 03:18:35,239 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 03:18:35,240 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 03:18:35,240 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 03:18:35,292 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 03:18:35,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 03:18:35,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 03:18:35,311 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 03:18:35,311 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 03:18:35,312 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c [2018-07-21 03:18:35,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5288669/2e647c2e1da640449dff6daebc341538/FLAG369f539e6 [2018-07-21 03:18:36,296 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 03:18:36,296 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label29_false-unreach-call.c [2018-07-21 03:18:36,389 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5288669/2e647c2e1da640449dff6daebc341538/FLAG369f539e6 [2018-07-21 03:18:36,484 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ab5288669/2e647c2e1da640449dff6daebc341538 [2018-07-21 03:18:36,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 03:18:36,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 03:18:36,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 03:18:36,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 03:18:36,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 03:18:36,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:18:36" (1/1) ... [2018-07-21 03:18:36,521 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee00b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:36, skipping insertion in model container [2018-07-21 03:18:36,521 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:18:36" (1/1) ... [2018-07-21 03:18:36,941 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 03:18:38,318 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:18:38,336 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 03:18:39,442 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 03:18:39,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39 WrapperNode [2018-07-21 03:18:39,785 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 03:18:39,786 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 03:18:39,786 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 03:18:39,787 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 03:18:39,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 03:18:40,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 03:18:40,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 03:18:40,260 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 03:18:40,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... [2018-07-21 03:18:40,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 03:18:40,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 03:18:40,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 03:18:40,781 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 03:18:40,783 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 03:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 03:18:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 03:18:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:18:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4 [2018-07-21 03:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 03:18:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output3 [2018-07-21 03:18:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 03:18:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 03:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 03:18:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output2 [2018-07-21 03:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 03:18:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 03:18:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 03:18:41,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output [2018-07-21 03:18:52,986 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 03:18:52,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:18:52 BoogieIcfgContainer [2018-07-21 03:18:52,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 03:18:52,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 03:18:52,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 03:18:52,991 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 03:18:52,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:18:36" (1/3) ... [2018-07-21 03:18:52,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fe811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:18:52, skipping insertion in model container [2018-07-21 03:18:52,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:18:39" (2/3) ... [2018-07-21 03:18:52,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440fe811 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:18:52, skipping insertion in model container [2018-07-21 03:18:52,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:18:52" (3/3) ... [2018-07-21 03:18:52,995 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label29_false-unreach-call.c [2018-07-21 03:18:53,004 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 03:18:53,013 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 03:18:53,084 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 03:18:53,084 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 03:18:53,085 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 03:18:53,086 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 03:18:53,086 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 03:18:53,086 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 03:18:53,086 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 03:18:53,086 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 03:18:53,086 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 03:18:53,136 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-07-21 03:18:53,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-21 03:18:53,143 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:18:53,144 INFO L358 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:18:53,145 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:18:53,151 INFO L82 PathProgramCache]: Analyzing trace with hash 625893537, now seen corresponding path program 1 times [2018-07-21 03:18:53,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:18:53,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:18:53,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:18:53,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:18:53,202 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:18:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:18:53,587 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:18:53,590 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:18:53,590 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:18:53,590 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:18:53,598 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:18:53,622 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:18:53,623 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:18:53,627 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 4 states. [2018-07-21 03:19:07,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:19:07,331 INFO L93 Difference]: Finished difference Result 3968 states and 7392 transitions. [2018-07-21 03:19:07,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:19:07,333 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-07-21 03:19:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:19:07,379 INFO L225 Difference]: With dead ends: 3968 [2018-07-21 03:19:07,379 INFO L226 Difference]: Without dead ends: 2842 [2018-07-21 03:19:07,399 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:19:07,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2018-07-21 03:19:07,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 1981. [2018-07-21 03:19:07,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2018-07-21 03:19:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 3456 transitions. [2018-07-21 03:19:07,598 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 3456 transitions. Word has length 21 [2018-07-21 03:19:07,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:19:07,599 INFO L471 AbstractCegarLoop]: Abstraction has 1981 states and 3456 transitions. [2018-07-21 03:19:07,599 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:19:07,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 3456 transitions. [2018-07-21 03:19:07,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2018-07-21 03:19:07,608 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:19:07,608 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:19:07,608 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:19:07,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1526000540, now seen corresponding path program 1 times [2018-07-21 03:19:07,610 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:19:07,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:07,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:19:07,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:07,612 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:19:07,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:19:08,135 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:19:08,136 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:19:08,136 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:19:08,136 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:19:08,140 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:19:08,140 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:19:08,141 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:19:08,141 INFO L87 Difference]: Start difference. First operand 1981 states and 3456 transitions. Second operand 6 states. [2018-07-21 03:19:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:19:24,114 INFO L93 Difference]: Finished difference Result 7236 states and 13035 transitions. [2018-07-21 03:19:24,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 03:19:24,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2018-07-21 03:19:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:19:24,160 INFO L225 Difference]: With dead ends: 7236 [2018-07-21 03:19:24,160 INFO L226 Difference]: Without dead ends: 5261 [2018-07-21 03:19:24,174 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 03:19:24,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2018-07-21 03:19:24,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5234. [2018-07-21 03:19:24,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5234 states. [2018-07-21 03:19:24,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5234 states to 5234 states and 8155 transitions. [2018-07-21 03:19:24,379 INFO L78 Accepts]: Start accepts. Automaton has 5234 states and 8155 transitions. Word has length 91 [2018-07-21 03:19:24,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:19:24,379 INFO L471 AbstractCegarLoop]: Abstraction has 5234 states and 8155 transitions. [2018-07-21 03:19:24,379 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:19:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 5234 states and 8155 transitions. [2018-07-21 03:19:24,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2018-07-21 03:19:24,384 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:19:24,385 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 03:19:24,385 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:19:24,385 INFO L82 PathProgramCache]: Analyzing trace with hash 209397768, now seen corresponding path program 1 times [2018-07-21 03:19:24,385 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:19:24,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:24,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:19:24,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:24,390 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:19:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:19:24,586 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:19:24,586 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:19:24,587 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:19:24,587 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:19:24,587 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:19:24,588 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:19:24,588 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:19:24,588 INFO L87 Difference]: Start difference. First operand 5234 states and 8155 transitions. Second operand 6 states. [2018-07-21 03:19:46,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:19:46,411 INFO L93 Difference]: Finished difference Result 16605 states and 27048 transitions. [2018-07-21 03:19:46,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-21 03:19:46,414 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 93 [2018-07-21 03:19:46,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:19:46,483 INFO L225 Difference]: With dead ends: 16605 [2018-07-21 03:19:46,486 INFO L226 Difference]: Without dead ends: 11377 [2018-07-21 03:19:46,508 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-21 03:19:46,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11377 states. [2018-07-21 03:19:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11377 to 11305. [2018-07-21 03:19:46,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11305 states. [2018-07-21 03:19:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11305 states to 11305 states and 16039 transitions. [2018-07-21 03:19:46,923 INFO L78 Accepts]: Start accepts. Automaton has 11305 states and 16039 transitions. Word has length 93 [2018-07-21 03:19:46,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:19:46,924 INFO L471 AbstractCegarLoop]: Abstraction has 11305 states and 16039 transitions. [2018-07-21 03:19:46,924 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:19:46,924 INFO L276 IsEmpty]: Start isEmpty. Operand 11305 states and 16039 transitions. [2018-07-21 03:19:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-07-21 03:19:46,927 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:19:46,927 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:19:46,927 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:19:46,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1738321329, now seen corresponding path program 1 times [2018-07-21 03:19:46,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:19:46,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:46,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:19:46,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:46,933 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:19:46,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:19:47,273 WARN L169 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 03:19:47,339 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:19:47,339 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:19:47,339 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 03:19:47,340 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:19:47,340 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 03:19:47,340 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 03:19:47,341 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 03:19:47,341 INFO L87 Difference]: Start difference. First operand 11305 states and 16039 transitions. Second operand 6 states. [2018-07-21 03:19:53,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:19:53,583 INFO L93 Difference]: Finished difference Result 31458 states and 48117 transitions. [2018-07-21 03:19:53,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 03:19:53,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 104 [2018-07-21 03:19:53,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:19:53,825 INFO L225 Difference]: With dead ends: 31458 [2018-07-21 03:19:53,825 INFO L226 Difference]: Without dead ends: 20159 [2018-07-21 03:19:53,874 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 03:19:53,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20159 states. [2018-07-21 03:19:54,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20159 to 20086. [2018-07-21 03:19:54,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20086 states. [2018-07-21 03:19:54,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20086 states to 20086 states and 28144 transitions. [2018-07-21 03:19:54,473 INFO L78 Accepts]: Start accepts. Automaton has 20086 states and 28144 transitions. Word has length 104 [2018-07-21 03:19:54,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:19:54,474 INFO L471 AbstractCegarLoop]: Abstraction has 20086 states and 28144 transitions. [2018-07-21 03:19:54,474 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 03:19:54,474 INFO L276 IsEmpty]: Start isEmpty. Operand 20086 states and 28144 transitions. [2018-07-21 03:19:54,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2018-07-21 03:19:54,479 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:19:54,479 INFO L358 BasicCegarLoop]: trace histogram [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] [2018-07-21 03:19:54,479 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:19:54,479 INFO L82 PathProgramCache]: Analyzing trace with hash 744061440, now seen corresponding path program 1 times [2018-07-21 03:19:54,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:19:54,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:54,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:19:54,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:19:54,485 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:19:54,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:19:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:19:54,738 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 03:19:54,738 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 03:19:54,738 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:19:54,739 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 03:19:54,739 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 03:19:54,739 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:19:54,739 INFO L87 Difference]: Start difference. First operand 20086 states and 28144 transitions. Second operand 4 states. [2018-07-21 03:20:02,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 03:20:02,729 INFO L93 Difference]: Finished difference Result 73868 states and 112518 transitions. [2018-07-21 03:20:02,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 03:20:02,732 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 137 [2018-07-21 03:20:02,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 03:20:02,987 INFO L225 Difference]: With dead ends: 73868 [2018-07-21 03:20:02,987 INFO L226 Difference]: Without dead ends: 53788 [2018-07-21 03:20:03,067 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 03:20:03,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53788 states. [2018-07-21 03:20:04,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53788 to 53754. [2018-07-21 03:20:04,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53754 states. [2018-07-21 03:20:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53754 states to 53754 states and 75526 transitions. [2018-07-21 03:20:04,825 INFO L78 Accepts]: Start accepts. Automaton has 53754 states and 75526 transitions. Word has length 137 [2018-07-21 03:20:04,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 03:20:04,827 INFO L471 AbstractCegarLoop]: Abstraction has 53754 states and 75526 transitions. [2018-07-21 03:20:04,827 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 03:20:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 53754 states and 75526 transitions. [2018-07-21 03:20:04,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-07-21 03:20:04,843 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 03:20:04,844 INFO L358 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 03:20:04,844 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 03:20:04,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1955206018, now seen corresponding path program 1 times [2018-07-21 03:20:04,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 03:20:04,845 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:20:04,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 03:20:04,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 03:20:04,846 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 03:20:04,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 03:20:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 03:20:05,472 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 03:20:05,472 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 03:20:05,473 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 226 with the following transitions: [2018-07-21 03:20:05,477 INFO L201 CegarAbsIntRunner]: [0], [1], [2631], [2635], [2641], [2645], [2647], [2652], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2719], [2721], [2724], [2732], [2740], [2748], [2756], [2764], [2772], [2780], [2788], [2796], [2804], [2812], [2820], [2828], [2836], [2844], [2852], [2860], [2868], [2876], [2884], [2892], [2900], [2908], [2916], [2924], [2932], [2940], [2948], [2956], [2964], [2972], [2980], [2988], [2996], [3004], [3012], [3020], [3028], [3036], [3044], [3052], [3060], [3068], [3076], [3084], [3092], [3100], [3108], [3116], [3124], [3132], [3140], [3145], [3149], [3153], [3157], [3161], [3172], [3176], [3180], [3184], [3188], [3192], [3203], [3207], [3210], [3211], [3215], [3219], [3223], [3227], [3231], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3329], [3333], [3337], [3341], [3345], [3349], [3353], [3357], [3368], [3379], [3382], [3387], [3389], [4262], [4265], [4266], [4267], [4271], [4272] [2018-07-21 03:20:05,568 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 03:20:05,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 03:20:21,856 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-21 03:20:21,858 INFO L272 AbstractInterpreter]: Visited 124 different actions 124 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-07-21 03:20:21,873 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-21 03:20:31,986 INFO L232 lantSequenceWeakener]: Weakened 215 states. On average, predicates are now at 70.87% of their original sizes. [2018-07-21 03:20:31,986 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-21 03:20:33,117 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-21 03:20:33,118 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-21 03:20:33,118 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-07-21 03:20:33,118 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 03:20:33,119 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-21 03:20:33,119 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-21 03:20:33,119 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-07-21 03:20:33,120 INFO L87 Difference]: Start difference. First operand 53754 states and 75526 transitions. Second operand 8 states. [2018-07-21 03:20:59,386 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 03:22:04,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-21 03:22:04,325 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 03:22:04,330 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 03:22:04,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:22:04 BoogieIcfgContainer [2018-07-21 03:22:04,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 03:22:04,331 INFO L168 Benchmark]: Toolchain (without parser) took 207832.37 ms. Allocated memory was 309.9 MB in the beginning and 2.6 GB in the end (delta: 2.3 GB). Free memory was 239.8 MB in the beginning and 2.0 GB in the end (delta: -1.7 GB). Peak memory consumption was 593.7 MB. Max. memory is 5.3 GB. [2018-07-21 03:22:04,333 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 03:22:04,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3279.43 ms. Allocated memory was 309.9 MB in the beginning and 381.2 MB in the end (delta: 71.3 MB). Free memory was 237.8 MB in the beginning and 178.9 MB in the end (delta: 58.9 MB). Peak memory consumption was 130.2 MB. Max. memory is 5.3 GB. [2018-07-21 03:22:04,334 INFO L168 Benchmark]: Boogie Procedure Inliner took 472.93 ms. Allocated memory was 381.2 MB in the beginning and 393.7 MB in the end (delta: 12.6 MB). Free memory was 178.9 MB in the beginning and 260.7 MB in the end (delta: -81.8 MB). Peak memory consumption was 78.9 MB. Max. memory is 5.3 GB. [2018-07-21 03:22:04,335 INFO L168 Benchmark]: Boogie Preprocessor took 521.11 ms. Allocated memory is still 393.7 MB. Free memory was 260.7 MB in the beginning and 194.3 MB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 5.3 GB. [2018-07-21 03:22:04,335 INFO L168 Benchmark]: RCFGBuilder took 12206.17 ms. Allocated memory was 393.7 MB in the beginning and 851.4 MB in the end (delta: 457.7 MB). Free memory was 194.3 MB in the beginning and 540.6 MB in the end (delta: -346.2 MB). Peak memory consumption was 222.4 MB. Max. memory is 5.3 GB. [2018-07-21 03:22:04,336 INFO L168 Benchmark]: TraceAbstraction took 191342.76 ms. Allocated memory was 851.4 MB in the beginning and 2.6 GB in the end (delta: 1.8 GB). Free memory was 540.6 MB in the beginning and 2.0 GB in the end (delta: -1.4 GB). Peak memory consumption was 352.9 MB. Max. memory is 5.3 GB. [2018-07-21 03:22:04,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 309.9 MB. Free memory is still 274.3 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 3279.43 ms. Allocated memory was 309.9 MB in the beginning and 381.2 MB in the end (delta: 71.3 MB). Free memory was 237.8 MB in the beginning and 178.9 MB in the end (delta: 58.9 MB). Peak memory consumption was 130.2 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 472.93 ms. Allocated memory was 381.2 MB in the beginning and 393.7 MB in the end (delta: 12.6 MB). Free memory was 178.9 MB in the beginning and 260.7 MB in the end (delta: -81.8 MB). Peak memory consumption was 78.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 521.11 ms. Allocated memory is still 393.7 MB. Free memory was 260.7 MB in the beginning and 194.3 MB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 12206.17 ms. Allocated memory was 393.7 MB in the beginning and 851.4 MB in the end (delta: 457.7 MB). Free memory was 194.3 MB in the beginning and 540.6 MB in the end (delta: -346.2 MB). Peak memory consumption was 222.4 MB. Max. memory is 5.3 GB. * TraceAbstraction took 191342.76 ms. Allocated memory was 851.4 MB in the beginning and 2.6 GB in the end (delta: 1.8 GB). Free memory was 540.6 MB in the beginning and 2.0 GB in the end (delta: -1.4 GB). Peak memory consumption was 352.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 54). Cancelled while BasicCegarLoop was constructing difference of abstraction (53754states) and interpolant automaton (currently 8 states, 8 states before enhancement), while ReachableStatesComputation was computing reachable states (5882 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 1120 locations, 1 error locations. TIMEOUT Result, 191.2s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 157.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2575 SDtfs, 20601 SDslu, 2457 SDs, 0 SdLazy, 28085 SolverSat, 8645 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 125.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 268 GetRequests, 232 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53754occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 16.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9958516483516483 AbsIntWeakeningRatio, 0.13392857142857142 AbsIntAvgWeakeningVarsNumRemoved, 44.625 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 1067 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 671 NumberOfCodeBlocks, 671 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 665 ConstructedInterpolants, 0 QuantifiedInterpolants, 300318 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 165/167 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label29_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_03-22-04-368.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem13_label29_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_03-22-04-368.csv Completed graceful shutdown