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/Problem04_label45_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-20 23:23:50,964 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-20 23:23:50,967 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-20 23:23:50,978 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-20 23:23:50,979 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-20 23:23:50,980 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-20 23:23:50,981 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-20 23:23:50,983 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-20 23:23:50,985 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-20 23:23:50,986 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-20 23:23:50,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-20 23:23:50,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-20 23:23:50,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-20 23:23:50,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-20 23:23:50,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-20 23:23:50,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-20 23:23:50,994 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-20 23:23:50,997 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-20 23:23:51,001 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-20 23:23:51,002 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-20 23:23:51,004 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-20 23:23:51,005 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-20 23:23:51,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-20 23:23:51,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-20 23:23:51,008 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-20 23:23:51,009 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-20 23:23:51,010 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-20 23:23:51,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-20 23:23:51,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-20 23:23:51,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-20 23:23:51,014 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-20 23:23:51,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-20 23:23:51,017 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-20 23:23:51,051 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-20 23:23:51,051 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-20 23:23:51,052 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-20 23:23:51,052 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-20 23:23:51,052 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-20 23:23:51,053 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-20 23:23:51,053 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-20 23:23:51,053 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-20 23:23:51,053 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-20 23:23:51,053 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-20 23:23:51,054 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-20 23:23:51,054 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-20 23:23:51,055 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-20 23:23:51,055 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-20 23:23:51,055 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-20 23:23:51,055 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-20 23:23:51,055 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-20 23:23:51,056 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-20 23:23:51,056 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-20 23:23:51,056 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-20 23:23:51,056 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-20 23:23:51,056 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-20 23:23:51,056 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-20 23:23:51,057 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-20 23:23:51,057 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-20 23:23:51,057 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-20 23:23:51,057 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-20 23:23:51,057 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-20 23:23:51,058 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-20 23:23:51,061 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-20 23:23:51,062 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-20 23:23:51,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-20 23:23:51,062 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-20 23:23:51,062 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-20 23:23:51,062 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-20 23:23:51,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-20 23:23:51,138 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-20 23:23:51,144 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-20 23:23:51,148 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-20 23:23:51,149 INFO L276 PluginConnector]: CDTParser initialized [2018-07-20 23:23:51,149 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label45_false-unreach-call.c [2018-07-20 23:23:51,516 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8bff98fa3/e65d35239ec741ba8698068b7faf9253/FLAG53df573ae [2018-07-20 23:23:52,135 INFO L276 CDTParser]: Found 1 translation units. [2018-07-20 23:23:52,137 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label45_false-unreach-call.c [2018-07-20 23:23:52,194 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8bff98fa3/e65d35239ec741ba8698068b7faf9253/FLAG53df573ae [2018-07-20 23:23:52,218 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/8bff98fa3/e65d35239ec741ba8698068b7faf9253 [2018-07-20 23:23:52,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-20 23:23:52,240 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-20 23:23:52,243 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-20 23:23:52,243 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-20 23:23:52,252 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-20 23:23:52,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:23:52" (1/1) ... [2018-07-20 23:23:52,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fd99a91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:52, skipping insertion in model container [2018-07-20 23:23:52,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 11:23:52" (1/1) ... [2018-07-20 23:23:52,679 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-20 23:23:54,061 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 23:23:54,081 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-20 23:23:55,082 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-20 23:23:55,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55 WrapperNode [2018-07-20 23:23:55,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-20 23:23:55,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-20 23:23:55,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-20 23:23:55,216 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-20 23:23:55,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-20 23:23:55,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-20 23:23:55,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-20 23:23:55,393 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-20 23:23:55,405 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (1/1) ... [2018-07-20 23:23:55,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-20 23:23:55,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-20 23:23:55,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-20 23:23:55,675 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-20 23:23:55,676 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (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 [2018-07-20 23:23:56,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-20 23:23:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-20 23:23:56,243 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 [2018-07-20 23:23:56,244 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 [2018-07-20 23:23:56,244 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 [2018-07-20 23:23:56,244 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 [2018-07-20 23:23:56,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-20 23:23:56,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-20 23:23:56,244 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 [2018-07-20 23:23:56,245 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 [2018-07-20 23:23:56,245 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-20 23:23:56,245 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-20 23:23:56,245 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 [2018-07-20 23:23:56,246 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 [2018-07-20 23:24:09,288 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-20 23:24:09,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:24:09 BoogieIcfgContainer [2018-07-20 23:24:09,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-20 23:24:09,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-20 23:24:09,290 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-20 23:24:09,294 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-20 23:24:09,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 11:23:52" (1/3) ... [2018-07-20 23:24:09,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d99cdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:24:09, skipping insertion in model container [2018-07-20 23:24:09,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 11:23:55" (2/3) ... [2018-07-20 23:24:09,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d99cdd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 11:24:09, skipping insertion in model container [2018-07-20 23:24:09,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 11:24:09" (3/3) ... [2018-07-20 23:24:09,300 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label45_false-unreach-call.c [2018-07-20 23:24:09,313 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-20 23:24:09,327 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-20 23:24:09,403 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-20 23:24:09,404 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-20 23:24:09,404 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-20 23:24:09,404 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-20 23:24:09,404 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-20 23:24:09,405 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-20 23:24:09,405 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-20 23:24:09,405 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-20 23:24:09,405 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-20 23:24:09,482 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-07-20 23:24:09,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 780 [2018-07-20 23:24:09,553 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 23:24:09,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 23:24:09,557 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-20 23:24:09,564 INFO L82 PathProgramCache]: Analyzing trace with hash 233862486, now seen corresponding path program 1 times [2018-07-20 23:24:09,567 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 23:24:09,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:09,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 23:24:09,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:09,624 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 23:24:10,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 23:24:11,281 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 23:24:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 23:24:12,124 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 23:24:12,125 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-20 23:24:12,125 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 23:24:12,132 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-20 23:24:12,148 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-20 23:24:12,149 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 23:24:12,153 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-07-20 23:24:18,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 23:24:18,087 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-07-20 23:24:18,089 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-20 23:24:18,090 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 779 [2018-07-20 23:24:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 23:24:18,133 INFO L225 Difference]: With dead ends: 2647 [2018-07-20 23:24:18,134 INFO L226 Difference]: Without dead ends: 1738 [2018-07-20 23:24:18,144 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-20 23:24:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-07-20 23:24:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-07-20 23:24:18,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-07-20 23:24:18,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3145 transitions. [2018-07-20 23:24:18,383 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3145 transitions. Word has length 779 [2018-07-20 23:24:18,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 23:24:18,389 INFO L471 AbstractCegarLoop]: Abstraction has 1738 states and 3145 transitions. [2018-07-20 23:24:18,389 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-20 23:24:18,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3145 transitions. [2018-07-20 23:24:18,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2018-07-20 23:24:18,426 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 23:24:18,427 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 23:24:18,427 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-20 23:24:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1162705155, now seen corresponding path program 1 times [2018-07-20 23:24:18,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 23:24:18,430 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:18,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 23:24:18,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:18,431 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 23:24:18,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 23:24:20,075 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 23:24:20,077 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 23:24:20,077 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-20 23:24:20,077 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 23:24:20,082 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-20 23:24:20,082 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-20 23:24:20,083 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-20 23:24:20,083 INFO L87 Difference]: Start difference. First operand 1738 states and 3145 transitions. Second operand 4 states. [2018-07-20 23:24:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 23:24:28,762 INFO L93 Difference]: Finished difference Result 6810 states and 12576 transitions. [2018-07-20 23:24:28,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-20 23:24:28,765 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 788 [2018-07-20 23:24:28,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 23:24:28,804 INFO L225 Difference]: With dead ends: 6810 [2018-07-20 23:24:28,805 INFO L226 Difference]: Without dead ends: 5078 [2018-07-20 23:24:28,813 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-20 23:24:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2018-07-20 23:24:28,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2018-07-20 23:24:28,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2018-07-20 23:24:29,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8141 transitions. [2018-07-20 23:24:29,019 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 8141 transitions. Word has length 788 [2018-07-20 23:24:29,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 23:24:29,024 INFO L471 AbstractCegarLoop]: Abstraction has 5078 states and 8141 transitions. [2018-07-20 23:24:29,024 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-20 23:24:29,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 8141 transitions. [2018-07-20 23:24:29,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 796 [2018-07-20 23:24:29,050 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 23:24:29,051 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 23:24:29,051 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-20 23:24:29,051 INFO L82 PathProgramCache]: Analyzing trace with hash 378010187, now seen corresponding path program 1 times [2018-07-20 23:24:29,052 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 23:24:29,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:29,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 23:24:29,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:29,053 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 23:24:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 23:24:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 23:24:29,540 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 23:24:29,551 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-20 23:24:29,552 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 23:24:29,553 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-20 23:24:29,553 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-20 23:24:29,554 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-20 23:24:29,554 INFO L87 Difference]: Start difference. First operand 5078 states and 8141 transitions. Second operand 6 states. [2018-07-20 23:24:36,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 23:24:36,312 INFO L93 Difference]: Finished difference Result 10354 states and 16685 transitions. [2018-07-20 23:24:36,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-20 23:24:36,315 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 795 [2018-07-20 23:24:36,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 23:24:36,351 INFO L225 Difference]: With dead ends: 10354 [2018-07-20 23:24:36,351 INFO L226 Difference]: Without dead ends: 5282 [2018-07-20 23:24:36,365 INFO L578 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 [2018-07-20 23:24:36,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5282 states. [2018-07-20 23:24:36,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5282 to 5242. [2018-07-20 23:24:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5242 states. [2018-07-20 23:24:36,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5242 states to 5242 states and 8004 transitions. [2018-07-20 23:24:36,594 INFO L78 Accepts]: Start accepts. Automaton has 5242 states and 8004 transitions. Word has length 795 [2018-07-20 23:24:36,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 23:24:36,594 INFO L471 AbstractCegarLoop]: Abstraction has 5242 states and 8004 transitions. [2018-07-20 23:24:36,594 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-20 23:24:36,594 INFO L276 IsEmpty]: Start isEmpty. Operand 5242 states and 8004 transitions. [2018-07-20 23:24:36,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2018-07-20 23:24:36,616 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 23:24:36,617 INFO L358 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 23:24:36,617 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-20 23:24:36,617 INFO L82 PathProgramCache]: Analyzing trace with hash -455123429, now seen corresponding path program 1 times [2018-07-20 23:24:36,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 23:24:36,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:36,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 23:24:36,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:36,620 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 23:24:36,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 23:24:36,947 WARN L169 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-20 23:24:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 23:24:37,342 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-20 23:24:37,342 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-20 23:24:37,342 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-20 23:24:37,344 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-20 23:24:37,344 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-20 23:24:37,344 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-20 23:24:37,344 INFO L87 Difference]: Start difference. First operand 5242 states and 8004 transitions. Second operand 6 states. [2018-07-20 23:24:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-20 23:24:42,260 INFO L93 Difference]: Finished difference Result 13302 states and 20477 transitions. [2018-07-20 23:24:42,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-20 23:24:42,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 800 [2018-07-20 23:24:42,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-20 23:24:42,315 INFO L225 Difference]: With dead ends: 13302 [2018-07-20 23:24:42,315 INFO L226 Difference]: Without dead ends: 8066 [2018-07-20 23:24:42,336 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-20 23:24:42,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8066 states. [2018-07-20 23:24:42,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8066 to 7996. [2018-07-20 23:24:42,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7996 states. [2018-07-20 23:24:42,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7996 states to 7996 states and 10977 transitions. [2018-07-20 23:24:42,640 INFO L78 Accepts]: Start accepts. Automaton has 7996 states and 10977 transitions. Word has length 800 [2018-07-20 23:24:42,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-20 23:24:42,640 INFO L471 AbstractCegarLoop]: Abstraction has 7996 states and 10977 transitions. [2018-07-20 23:24:42,640 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-20 23:24:42,641 INFO L276 IsEmpty]: Start isEmpty. Operand 7996 states and 10977 transitions. [2018-07-20 23:24:42,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2018-07-20 23:24:42,679 INFO L350 BasicCegarLoop]: Found error trace [2018-07-20 23:24:42,679 INFO L358 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-20 23:24:42,680 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_c__calculate_output4Err0AssertViolationERROR_FUNCTION]=== [2018-07-20 23:24:42,680 INFO L82 PathProgramCache]: Analyzing trace with hash 407723848, now seen corresponding path program 1 times [2018-07-20 23:24:42,680 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-20 23:24:42,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:42,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 23:24:42,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-20 23:24:42,682 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-20 23:24:42,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 23:24:43,647 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-20 23:24:43,648 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 23:24:43,648 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-20 23:24:43,650 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 816 with the following transitions: [2018-07-20 23:24:43,656 INFO L201 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [294], [298], [302], [306], [310], [314], [318], [322], [326], [330], [334], [338], [342], [346], [350], [354], [358], [362], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [445], [447], [854], [858], [862], [866], [870], [874], [878], [882], [886], [890], [894], [898], [902], [906], [910], [914], [918], [922], [926], [930], [934], [938], [942], [946], [950], [954], [958], [962], [966], [970], [974], [978], [982], [986], [990], [994], [998], [1002], [1006], [1010], [1014], [1018], [1022], [1026], [1030], [1034], [1038], [1042], [1046], [1050], [1054], [1058], [1062], [1066], [1070], [1074], [1078], [1082], [1086], [1090], [1094], [1098], [1102], [1106], [1110], [1114], [1118], [1122], [1126], [1130], [1134], [1138], [1142], [1146], [1150], [1154], [1158], [1162], [1166], [1170], [1174], [1178], [1182], [1186], [1190], [1194], [1198], [1202], [1206], [1210], [1214], [1218], [1222], [1226], [1230], [1234], [1238], [1242], [1246], [1250], [1254], [1258], [1262], [1266], [1270], [1274], [1278], [1282], [1286], [1290], [1294], [1298], [1302], [1306], [1310], [1314], [1318], [1322], [1326], [1330], [1334], [1338], [1342], [1346], [1350], [1354], [1358], [1362], [1366], [1370], [1374], [1378], [1382], [1386], [1390], [1394], [1398], [1402], [1406], [1410], [1414], [1418], [1422], [1426], [1430], [1434], [1438], [1442], [1446], [1450], [1454], [1458], [1462], [1466], [1470], [1474], [1478], [1482], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1574], [1578], [1582], [1586], [1590], [1594], [1598], [1602], [1606], [1610], [1614], [1618], [1622], [1626], [1630], [1634], [1638], [1642], [1646], [1650], [1654], [1658], [1662], [1666], [1670], [1674], [1678], [1682], [1686], [1690], [1694], [1698], [1702], [1706], [1710], [1714], [1718], [1722], [1726], [1730], [1734], [1741], [1745], [1749], [1753], [1757], [1761], [1765], [1769], [1773], [1777], [1781], [1785], [1789], [1793], [1797], [1801], [1805], [1809], [1813], [1817], [1821], [1825], [1829], [1833], [1837], [1841], [1845], [1849], [1853], [1857], [1861], [1865], [1869], [1873], [1877], [1881], [1885], [1889], [1893], [1897], [1901], [1905], [1909], [1913], [1917], [1921], [1925], [1929], [1933], [1937], [1941], [1945], [1949], [1953], [1957], [1961], [1965], [1969], [1973], [1977], [1981], [1985], [1989], [1993], [1997], [2001], [2005], [2009], [2013], [2017], [2021], [2025], [2029], [2033], [2037], [2041], [2045], [2049], [2053], [2057], [2061], [2065], [2069], [2073], [2077], [2081], [2085], [2089], [2093], [2097], [2101], [2105], [2109], [2113], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2635], [2639], [2641], [2646], [2650], [2654], [2658], [2662], [2666], [2670], [2674], [2677], [2678], [2682], [2686], [2690], [2693], [2694], [2698], [2702], [2706], [2710], [2714], [2718], [2722], [2726], [2730], [2734], [2738], [2742], [2746], [2750], [2754], [2758], [2762], [2766], [2770], [2774], [2778], [2782], [2786], [2790], [2794], [2798], [2802], [2806], [2810], [2814], [2818], [2822], [2826], [2830], [2834], [2838], [2842], [2846], [2850], [2854], [2858], [2862], [2866], [2870], [2874], [2878], [2882], [2886], [2890], [2894], [2898], [2902], [2906], [2910], [2914], [2918], [2922], [2926], [2930], [2934], [2938], [2942], [2946], [2950], [2954], [2958], [2962], [2966], [2970], [2974], [2978], [2982], [2986], [2990], [2994], [2998], [3002], [3006], [3010], [3014], [3018], [3022], [3026], [3030], [3034], [3038], [3042], [3046], [3050], [3054], [3058], [3062], [3066], [3070], [3074], [3078], [3082], [3086], [3090], [3094], [3098], [3102], [3106], [3110], [3114], [3118], [3122], [3126], [3130], [3134], [3138], [3142], [3146], [3150], [3154], [3158], [3162], [3166], [3170], [3174], [3178], [3182], [3186], [3190], [3194], [3198], [3202], [3206], [3210], [3214], [3218], [3222], [3226], [3230], [3234], [3238], [3242], [3246], [3250], [3254], [3258], [3262], [3266], [3270], [3274], [3278], [3282], [3286], [3290], [3294], [3298], [3302], [3306], [3310], [3314], [3318], [3322], [3326], [3330], [3334], [3338], [3342], [3346], [3350], [3354], [3358], [3362], [3366], [3370], [3374], [3378], [3382], [3386], [3390], [3394], [3398], [3402], [3406], [3410], [3414], [3418], [3422], [3426], [3430], [3434], [3438], [3442], [3446], [3450], [3454], [3458], [3462], [3466], [3470], [3474], [3478], [3482], [3486], [3490], [3494], [3498], [3502], [3506], [3510], [3514], [3518], [3522], [3526], [3529], [3530], [3532], [3533], [3534], [3536], [3538], [3539], [3540] [2018-07-20 23:24:43,823 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-20 23:24:43,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-20 23:27:57,608 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-20 23:27:57,609 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-20 23:27:57,610 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-20 23:27:57,611 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-20 23:27:57,611 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-07-20 23:27:57,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-20 23:27:57,623 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-20 23:27:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-20 23:27:58,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-20 23:27:58,134 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-20 23:27:58,336 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-20 23:27:58,336 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-20 23:27:58,341 WARN L202 ceAbstractionStarter]: Timeout [2018-07-20 23:27:58,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 11:27:58 BoogieIcfgContainer [2018-07-20 23:27:58,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-20 23:27:58,343 INFO L168 Benchmark]: Toolchain (without parser) took 246108.85 ms. Allocated memory was 306.2 MB in the beginning and 2.4 GB in the end (delta: 2.0 GB). Free memory was 237.2 MB in the beginning and 615.1 MB in the end (delta: -377.9 MB). Peak memory consumption was 1.7 GB. Max. memory is 5.3 GB. [2018-07-20 23:27:58,344 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 306.2 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-20 23:27:58,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2972.58 ms. Allocated memory was 306.2 MB in the beginning and 377.0 MB in the end (delta: 70.8 MB). Free memory was 237.2 MB in the beginning and 293.0 MB in the end (delta: -55.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 5.3 GB. [2018-07-20 23:27:58,345 INFO L168 Benchmark]: Boogie Procedure Inliner took 176.22 ms. Allocated memory is still 377.0 MB. Free memory was 293.0 MB in the beginning and 283.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-07-20 23:27:58,345 INFO L168 Benchmark]: Boogie Preprocessor took 281.23 ms. Allocated memory is still 377.0 MB. Free memory was 283.0 MB in the beginning and 255.4 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 5.3 GB. [2018-07-20 23:27:58,346 INFO L168 Benchmark]: RCFGBuilder took 13615.00 ms. Allocated memory was 377.0 MB in the beginning and 666.9 MB in the end (delta: 289.9 MB). Free memory was 255.4 MB in the beginning and 459.9 MB in the end (delta: -204.5 MB). Peak memory consumption was 236.0 MB. Max. memory is 5.3 GB. [2018-07-20 23:27:58,346 INFO L168 Benchmark]: TraceAbstraction took 229051.12 ms. Allocated memory was 666.9 MB in the beginning and 2.4 GB in the end (delta: 1.7 GB). Free memory was 459.9 MB in the beginning and 615.1 MB in the end (delta: -155.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. [2018-07-20 23:27:58,356 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 306.2 MB. Free memory is still 271.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 2972.58 ms. Allocated memory was 306.2 MB in the beginning and 377.0 MB in the end (delta: 70.8 MB). Free memory was 237.2 MB in the beginning and 293.0 MB in the end (delta: -55.8 MB). Peak memory consumption was 99.8 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 176.22 ms. Allocated memory is still 377.0 MB. Free memory was 293.0 MB in the beginning and 283.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 281.23 ms. Allocated memory is still 377.0 MB. Free memory was 283.0 MB in the beginning and 255.4 MB in the end (delta: 27.6 MB). Peak memory consumption was 27.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 13615.00 ms. Allocated memory was 377.0 MB in the beginning and 666.9 MB in the end (delta: 289.9 MB). Free memory was 255.4 MB in the beginning and 459.9 MB in the end (delta: -204.5 MB). Peak memory consumption was 236.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 229051.12 ms. Allocated memory was 666.9 MB in the beginning and 2.4 GB in the end (delta: 1.7 GB). Free memory was 459.9 MB in the beginning and 615.1 MB in the end (delta: -155.2 MB). Peak memory consumption was 1.5 GB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4655]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4655). Cancelled while BasicCegarLoop was analyzing trace of length 816 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 228.9s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 26.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2200 SDtfs, 8572 SDslu, 515 SDs, 0 SdLazy, 16267 SolverSat, 4606 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 21.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 13 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7996occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 193.9s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 4 MinimizatonAttempts, 110 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 3162 NumberOfCodeBlocks, 3162 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 3158 ConstructedInterpolants, 0 QuantifiedInterpolants, 5757861 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 37/37 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/Problem04_label45_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-20_23-27-58-371.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem04_label45_false-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-20_23-27-58-371.csv Completed graceful shutdown