java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1270a_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:19:30,428 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:19:30,430 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:19:30,442 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:19:30,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:19:30,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:19:30,445 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:19:30,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:19:30,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:19:30,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:19:30,451 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:19:30,451 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:19:30,452 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:19:30,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:19:30,454 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:19:30,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:19:30,456 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:19:30,458 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:19:30,460 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:19:30,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:19:30,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:19:30,464 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:19:30,466 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:19:30,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:19:30,467 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:19:30,468 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:19:30,469 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:19:30,469 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:19:30,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:19:30,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:19:30,472 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:19:30,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:19:30,473 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:19:30,473 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:19:30,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:19:30,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:19:30,475 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 16:19:30,499 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:19:30,499 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:19:30,500 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:19:30,500 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:19:30,501 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:19:30,501 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:19:30,501 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:19:30,501 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:19:30,502 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:19:30,502 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:19:30,502 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:19:30,502 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:19:30,502 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:19:30,502 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:19:30,503 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:19:30,503 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:19:30,503 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:19:30,503 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:19:30,503 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:19:30,504 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:19:30,504 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:19:30,504 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:19:30,504 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:19:30,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:19:30,505 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:19:30,505 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:19:30,505 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:19:30,505 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:19:30,505 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:19:30,506 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:19:30,506 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:19:30,506 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:19:30,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:19:30,567 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:19:30,572 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:19:30,573 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:19:30,574 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:19:30,574 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1270a_true-unreach-call.c [2018-09-19 16:19:30,936 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc680b89/1941bc7059994a3e902d699c3fdba9d5/FLAGc40b887c4 [2018-09-19 16:19:31,162 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:19:31,163 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1270a_true-unreach-call.c [2018-09-19 16:19:31,173 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc680b89/1941bc7059994a3e902d699c3fdba9d5/FLAGc40b887c4 [2018-09-19 16:19:31,190 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdc680b89/1941bc7059994a3e902d699c3fdba9d5 [2018-09-19 16:19:31,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:19:31,203 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:19:31,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:31,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:19:31,212 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:19:31,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32abb614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31, skipping insertion in model container [2018-09-19 16:19:31,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,230 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:19:31,604 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:31,632 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:19:31,781 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:31,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31 WrapperNode [2018-09-19 16:19:31,853 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:31,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:19:31,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:19:31,855 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:19:31,872 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,935 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... [2018-09-19 16:19:31,985 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:19:31,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:19:31,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:19:31,986 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:19:31,987 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:19:32,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:19:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:19:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-19 16:19:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypot [2018-09-19 16:19:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:19:32,155 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:19:32,155 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:19:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:19:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-19 16:19:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:19:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:19:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:19:32,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:19:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:19:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:19:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypot [2018-09-19 16:19:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:19:32,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:19:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:19:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:19:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:19:32,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:19:32,436 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:32,484 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:32,545 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:32,986 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:33,044 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:33,084 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:36,938 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,132 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,269 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,474 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,589 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,705 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,750 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:37,831 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,281 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,302 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,329 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,365 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,393 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,444 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,904 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,926 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,958 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:38,970 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,124 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,285 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,502 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,547 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:39,592 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:40,981 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:19:40,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:40 BoogieIcfgContainer [2018-09-19 16:19:40,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:19:40,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:19:40,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:19:40,987 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:19:40,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:19:31" (1/3) ... [2018-09-19 16:19:40,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b81b016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:40, skipping insertion in model container [2018-09-19 16:19:40,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:31" (2/3) ... [2018-09-19 16:19:40,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b81b016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:40, skipping insertion in model container [2018-09-19 16:19:40,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:40" (3/3) ... [2018-09-19 16:19:40,991 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1270a_true-unreach-call.c [2018-09-19 16:19:41,003 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:19:41,012 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:19:41,064 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:19:41,065 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:19:41,065 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:19:41,066 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:19:41,066 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:19:41,066 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:19:41,066 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:19:41,066 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:19:41,066 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:19:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2018-09-19 16:19:41,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:19:41,114 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:41,117 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:19:41,120 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:41,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1307480282, now seen corresponding path program 1 times [2018-09-19 16:19:41,129 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:41,130 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 16:19:41,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:41,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:41,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:19:41,329 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:41,349 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:41,349 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:19:41,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:19:41,367 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:19:41,368 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:41,371 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 2 states. [2018-09-19 16:19:41,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:19:41,441 INFO L93 Difference]: Finished difference Result 634 states and 789 transitions. [2018-09-19 16:19:41,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:19:41,442 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:19:41,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:19:41,464 INFO L225 Difference]: With dead ends: 634 [2018-09-19 16:19:41,464 INFO L226 Difference]: Without dead ends: 317 [2018-09-19 16:19:41,478 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:41,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-09-19 16:19:41,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2018-09-19 16:19:41,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-09-19 16:19:41,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 348 transitions. [2018-09-19 16:19:41,552 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 348 transitions. Word has length 27 [2018-09-19 16:19:41,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:19:41,556 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 348 transitions. [2018-09-19 16:19:41,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:19:41,556 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 348 transitions. [2018-09-19 16:19:41,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:19:41,565 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:41,566 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:19:41,566 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:41,566 INFO L82 PathProgramCache]: Analyzing trace with hash 1824837538, now seen corresponding path program 1 times [2018-09-19 16:19:41,570 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:41,571 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:19:41,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:41,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:41,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:41,935 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:19:41,940 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:19:41,941 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:41,946 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:41,962 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:41,963 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:19:42,011 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:19:42,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:19:42,017 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:42,021 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:42,095 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:42,095 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:19:43,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:19:43,072 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:43,090 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:43,090 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:19:43,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:19:43,094 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:19:43,095 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:19:43,095 INFO L87 Difference]: Start difference. First operand 317 states and 348 transitions. Second operand 11 states. [2018-09-19 16:19:44,324 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-19 16:19:44,791 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-19 16:21:50,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:21:50,246 INFO L93 Difference]: Finished difference Result 725 states and 781 transitions. [2018-09-19 16:21:50,437 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-19 16:21:50,437 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2018-09-19 16:21:50,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:21:50,447 INFO L225 Difference]: With dead ends: 725 [2018-09-19 16:21:50,447 INFO L226 Difference]: Without dead ends: 618 [2018-09-19 16:21:50,450 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=85, Invalid=377, Unknown=0, NotChecked=0, Total=462 [2018-09-19 16:21:50,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2018-09-19 16:21:50,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 372. [2018-09-19 16:21:50,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 372 states. [2018-09-19 16:21:50,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 407 transitions. [2018-09-19 16:21:50,497 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 407 transitions. Word has length 80 [2018-09-19 16:21:50,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:21:50,498 INFO L480 AbstractCegarLoop]: Abstraction has 372 states and 407 transitions. [2018-09-19 16:21:50,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 16:21:50,498 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 407 transitions. [2018-09-19 16:21:50,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:21:50,502 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:21:50,502 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:21:50,502 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:21:50,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1343757280, now seen corresponding path program 1 times [2018-09-19 16:21:50,503 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:21:50,503 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:21:50,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:21:50,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:21:50,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:21:50,924 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:21:50,931 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:21:50,932 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:50,940 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:51,060 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:51,061 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:21:51,318 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-19 16:21:51,716 INFO L303 Elim1Store]: Index analysis took 393 ms [2018-09-19 16:21:51,717 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:21:51,737 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:21:51,738 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:51,773 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:51,921 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:51,922 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:21:52,529 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2018-09-19 16:21:52,542 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-09-19 16:21:52,543 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:52,572 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:52,614 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:52,614 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:38 [2018-09-19 16:21:52,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-09-19 16:21:52,819 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:52,832 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-09-19 16:21:52,833 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:52,865 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:52,927 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:52,927 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:47 [2018-09-19 16:21:53,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-09-19 16:21:53,100 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:53,107 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2018-09-19 16:21:53,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:53,133 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:53,235 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:53,236 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:92, output treesize:48 [2018-09-19 16:21:53,723 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-19 16:21:53,743 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-19 16:21:53,744 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:21:53,769 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:21:53,842 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:53,842 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:61, output treesize:57 [2018-09-19 16:21:54,060 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2018-09-19 16:21:54,078 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:21:54,088 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 22 [2018-09-19 16:21:54,089 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:54,113 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:54,195 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-09-19 16:21:54,196 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:102, output treesize:63 [2018-09-19 16:21:56,834 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:22:00,455 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-19 16:22:03,234 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-19 16:22:03,794 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:22:03,794 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:22:03,796 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-09-19 16:22:03,805 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:22:03,829 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-19 16:22:03,830 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:22:03,879 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:22:03,906 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:22:03,907 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:22:06,755 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:22:06,756 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:22:06,758 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2018-09-19 16:22:06,771 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:22:06,793 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-19 16:22:06,794 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:22:06,831 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:22:06,878 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:22:06,879 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:22:07,680 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-09-19 16:22:07,689 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:22:07,693 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-19 16:22:07,694 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:22:07,707 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:22:07,724 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:22:07,724 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:22:14,272 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-19 16:22:14,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:22:14,406 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:22:14,420 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:22:14,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-09-19 16:22:14,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-19 16:22:14,421 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-19 16:22:14,422 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=690, Unknown=1, NotChecked=0, Total=756 [2018-09-19 16:22:14,422 INFO L87 Difference]: Start difference. First operand 372 states and 407 transitions. Second operand 28 states. [2018-09-19 16:22:21,177 WARN L178 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2018-09-19 16:22:23,161 WARN L178 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2018-09-19 16:22:24,307 WARN L178 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2018-09-19 16:22:25,446 WARN L178 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2018-09-19 16:22:26,769 WARN L178 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2018-09-19 16:22:28,121 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2018-09-19 16:22:29,186 WARN L178 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2018-09-19 16:22:31,215 WARN L178 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2018-09-19 16:22:32,778 WARN L178 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2018-09-19 16:22:34,305 WARN L178 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2018-09-19 16:22:36,662 WARN L178 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2018-09-19 16:22:38,042 WARN L178 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2018-09-19 16:22:53,975 WARN L178 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2018-09-19 16:23:01,949 WARN L178 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:23:11,300 WARN L178 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:23:23,098 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:23:38,107 WARN L178 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 72 Received shutdown request... [2018-09-19 16:24:16,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 16:24:16,663 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 16:24:16,668 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 16:24:16,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:24:16 BoogieIcfgContainer [2018-09-19 16:24:16,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:24:16,670 INFO L168 Benchmark]: Toolchain (without parser) took 285469.57 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 866.6 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -528.3 MB). Peak memory consumption was 338.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:16,671 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:24:16,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:16,673 INFO L168 Benchmark]: Boogie Preprocessor took 130.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:24:16,673 INFO L168 Benchmark]: RCFGBuilder took 8996.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -714.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:16,674 INFO L168 Benchmark]: TraceAbstraction took 275685.72 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 138.9 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 165.1 MB). Peak memory consumption was 304.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:16,682 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.14 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 8996.84 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 727.7 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -714.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 275685.72 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 138.9 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 165.1 MB). Peak memory consumption was 304.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 322]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 322). Cancelled while BasicCegarLoop was constructing difference of abstraction (372states) and FLOYD_HOARE automaton (currently 37 states, 28 states before enhancement), while ReachableStatesComputation was computing reachable states (369 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 321 locations, 1 error locations. TIMEOUT Result, 275.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 249.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1163 SDtfs, 1748 SDslu, 8240 SDs, 0 SdLazy, 2076 SolverSat, 66 SolverUnsat, 74 SolverUnknown, 0 SolverNotchecked, 203.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 62.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 246 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 24.9s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 184 ConstructedInterpolants, 111 QuantifiedInterpolants, 295820 SizeOfPredicates, 37 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown