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_1270d_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:19:39,400 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:19:39,402 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:19:39,416 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:19:39,416 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:19:39,417 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:19:39,419 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:19:39,422 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:19:39,423 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:19:39,424 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:19:39,427 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:19:39,427 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:19:39,428 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:19:39,432 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:19:39,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:19:39,434 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:19:39,437 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:19:39,442 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:19:39,451 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:19:39,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:19:39,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:19:39,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:19:39,463 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:19:39,463 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:19:39,463 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:19:39,464 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:19:39,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:19:39,468 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:19:39,469 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:19:39,470 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:19:39,470 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:19:39,471 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:19:39,471 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:19:39,471 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:19:39,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:19:39,475 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:19:39,476 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 16:19:39,505 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:19:39,506 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:19:39,510 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:19:39,510 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:19:39,511 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:19:39,511 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:19:39,511 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:19:39,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:19:39,512 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:19:39,512 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:19:39,513 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:19:39,514 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:19:39,514 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:19:39,514 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:19:39,514 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:19:39,514 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:19:39,515 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:19:39,515 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:19:39,515 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:19:39,515 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:19:39,515 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:19:39,516 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:19:39,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:19:39,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:19:39,518 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:19:39,518 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:19:39,519 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:19:39,519 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:19:39,519 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:19:39,520 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:19:39,520 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:19:39,520 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:19:39,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:19:39,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:19:39,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:19:39,617 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:19:39,617 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:19:39,618 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1270d_true-unreach-call.c [2018-09-19 16:19:39,967 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/601123ef8/9f8263264dbd4433a2edd4b85d48a3ef/FLAG3841806f7 [2018-09-19 16:19:40,167 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:19:40,168 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1270d_true-unreach-call.c [2018-09-19 16:19:40,177 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/601123ef8/9f8263264dbd4433a2edd4b85d48a3ef/FLAG3841806f7 [2018-09-19 16:19:40,193 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/601123ef8/9f8263264dbd4433a2edd4b85d48a3ef [2018-09-19 16:19:40,204 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:19:40,207 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:19:40,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:40,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:19:40,216 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:19:40,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb20a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40, skipping insertion in model container [2018-09-19 16:19:40,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,233 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:19:40,639 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:40,663 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:19:40,767 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:40,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40 WrapperNode [2018-09-19 16:19:40,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:40,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:19:40,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:19:40,824 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:19:40,837 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:19:40,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:19:40,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:19:40,934 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:19:40,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (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 16:19:41,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:19:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:19:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-19 16:19:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypot [2018-09-19 16:19:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:19:41,082 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:19:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:19:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:19:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-19 16:19:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:19:41,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:19:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:19:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:19:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:19:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:19:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypot [2018-09-19 16:19:41,084 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:19:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:19:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:19:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:19:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:19:41,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:19:41,381 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,415 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,451 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,780 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,821 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,848 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:44,617 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:44,669 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:44,790 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:44,994 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:45,116 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:45,255 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:45,301 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:45,333 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,083 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,124 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,254 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,281 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,315 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,378 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,772 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,779 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,796 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,808 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,851 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,024 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,203 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,210 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,237 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:48,758 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:19:48,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:48 BoogieIcfgContainer [2018-09-19 16:19:48,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:19:48,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:19:48,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:19:48,763 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:19:48,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:19:40" (1/3) ... [2018-09-19 16:19:48,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb8228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:48, skipping insertion in model container [2018-09-19 16:19:48,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (2/3) ... [2018-09-19 16:19:48,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb8228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:48, skipping insertion in model container [2018-09-19 16:19:48,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:48" (3/3) ... [2018-09-19 16:19:48,767 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1270d_true-unreach-call.c [2018-09-19 16:19:48,778 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:19:48,787 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:19:48,841 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:19:48,842 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:19:48,842 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:19:48,842 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:19:48,842 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:19:48,842 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:19:48,842 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:19:48,842 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:19:48,843 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:19:48,872 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2018-09-19 16:19:48,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:19:48,883 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:48,884 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 16:19:48,887 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:48,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1307480282, now seen corresponding path program 1 times [2018-09-19 16:19:48,896 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:48,897 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 16:19:48,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:49,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:49,082 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 16:19:49,082 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:49,100 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:49,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:19:49,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:19:49,121 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:19:49,122 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:49,125 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 2 states. [2018-09-19 16:19:49,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:19:49,197 INFO L93 Difference]: Finished difference Result 634 states and 789 transitions. [2018-09-19 16:19:49,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:19:49,198 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:19:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:19:49,215 INFO L225 Difference]: With dead ends: 634 [2018-09-19 16:19:49,215 INFO L226 Difference]: Without dead ends: 317 [2018-09-19 16:19:49,222 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 16:19:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-09-19 16:19:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2018-09-19 16:19:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-09-19 16:19:49,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 348 transitions. [2018-09-19 16:19:49,293 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 348 transitions. Word has length 27 [2018-09-19 16:19:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:19:49,294 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 348 transitions. [2018-09-19 16:19:49,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:19:49,294 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 348 transitions. [2018-09-19 16:19:49,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:19:49,299 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:49,299 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 16:19:49,299 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:49,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1824837538, now seen corresponding path program 1 times [2018-09-19 16:19:49,301 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:49,302 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 16:19:49,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:49,652 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:49,841 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 16:19:49,849 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 16:19:49,850 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:49,861 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:50,190 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 16:19:50,191 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-09-19 16:19:50,427 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-19 16:19:50,457 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 16:19:50,493 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 16:19:50,494 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:50,550 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:50,688 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:50,688 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:22 [2018-09-19 16:19:51,340 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 16:19:51,351 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 16:19:51,352 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,358 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,408 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 16:19:51,409 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:38 [2018-09-19 16:19:51,533 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 16:19:51,565 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:19:51,573 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 16:19:51,574 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,644 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,693 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 16:19:51,693 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:47 [2018-09-19 16:19:51,844 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 16:19:51,858 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:19:51,871 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 16:19:51,872 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,902 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,949 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 16:19:51,950 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:92, output treesize:48 [2018-09-19 16:19:52,375 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 16:19:52,400 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 16:19:52,401 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:52,435 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:52,501 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 16:19:52,501 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:61, output treesize:57 [2018-09-19 16:19:52,771 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 16:19:52,792 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:19:52,800 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 16:19:52,802 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 16:19:52,824 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 16:19:52,884 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 16:19:52,885 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:102, output treesize:63 [2018-09-19 16:19:55,778 WARN L178 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:19:59,461 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:20:00,054 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:00,054 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:00,056 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 16:20:00,065 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:20:00,085 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 16:20:00,086 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:20:00,104 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:20:00,158 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 16:20:00,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:20:02,336 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:02,350 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:02,352 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 16:20:02,370 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:20:02,393 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 16:20:02,394 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:20:02,428 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:20:02,473 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 16:20:02,474 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:20:03,230 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 16:20:03,237 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:20:03,242 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 16:20:03,243 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:20:03,261 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:20:03,278 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 16:20:03,278 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:20:11,366 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2018-09-19 16:20:11,519 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 16:20:11,520 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:20:11,537 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:20:11,537 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-09-19 16:20:11,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-19 16:20:11,540 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-19 16:20:11,541 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-09-19 16:20:11,541 INFO L87 Difference]: Start difference. First operand 317 states and 348 transitions. Second operand 28 states. [2018-09-19 16:20:13,577 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:20:14,334 WARN L178 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:20:15,681 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-09-19 16:20:17,422 WARN L178 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-09-19 16:20:18,296 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-09-19 16:20:19,772 WARN L178 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-09-19 16:20:21,563 WARN L178 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2018-09-19 16:20:22,851 WARN L178 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-19 16:20:23,864 WARN L178 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-19 16:20:25,587 WARN L178 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-09-19 16:20:26,935 WARN L178 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-09-19 16:20:28,292 WARN L178 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2018-09-19 16:20:30,804 WARN L178 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-09-19 16:20:31,590 WARN L178 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-19 16:20:41,191 WARN L178 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-09-19 16:20:48,787 WARN L178 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-19 16:20:55,910 WARN L178 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-19 16:21:05,614 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 16:21:06,835 WARN L178 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:21:10,649 WARN L178 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:21:12,705 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:21:27,992 WARN L178 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 73 [2018-09-19 16:23:11,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:23:11,398 INFO L93 Difference]: Finished difference Result 667 states and 722 transitions. [2018-09-19 16:23:11,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 16:23:11,631 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 80 [2018-09-19 16:23:11,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:23:11,639 INFO L225 Difference]: With dead ends: 667 [2018-09-19 16:23:11,639 INFO L226 Difference]: Without dead ends: 660 [2018-09-19 16:23:11,642 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 53.1s TimeCoverageRelationStatistics Valid=273, Invalid=2806, Unknown=1, NotChecked=0, Total=3080 [2018-09-19 16:23:11,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2018-09-19 16:23:11,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 342. [2018-09-19 16:23:11,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-09-19 16:23:11,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 373 transitions. [2018-09-19 16:23:11,679 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 373 transitions. Word has length 80 [2018-09-19 16:23:11,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:23:11,680 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 373 transitions. [2018-09-19 16:23:11,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-09-19 16:23:11,680 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 373 transitions. [2018-09-19 16:23:11,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:23:11,684 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:23:11,684 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 16:23:11,685 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:23:11,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1343757280, now seen corresponding path program 1 times [2018-09-19 16:23:11,686 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:23:11,686 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 16:23:11,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:23:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:23:11,915 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:23:12,047 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 16:23:12,055 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 16:23:12,055 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:23:12,061 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:23:12,086 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 16:23:12,086 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:25 [2018-09-19 16:23:12,182 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 16:23:12,195 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 16:23:12,195 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:23:12,200 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:23:12,216 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:23:12,217 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:34, output treesize:19 [2018-09-19 16:23:12,816 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 16:23:12,817 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:23:12,829 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:23:12,830 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:23:12,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:23:12,830 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:23:12,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:23:12,831 INFO L87 Difference]: Start difference. First operand 342 states and 373 transitions. Second operand 11 states. [2018-09-19 16:23:13,496 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:23:13,732 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:23:15,949 WARN L178 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 Received shutdown request... [2018-09-19 16:24:28,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 16:24:28,159 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 16:24:28,174 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 16:24:28,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:24:28 BoogieIcfgContainer [2018-09-19 16:24:28,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:24:28,176 INFO L168 Benchmark]: Toolchain (without parser) took 287971.53 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 863.5 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -487.3 MB). Peak memory consumption was 376.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:28,177 INFO L168 Benchmark]: CDTParser took 0.26 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 16:24:28,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 615.30 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 16:24:28,178 INFO L168 Benchmark]: Boogie Preprocessor took 109.66 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 16:24:28,179 INFO L168 Benchmark]: RCFGBuilder took 7825.15 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -716.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:28,180 INFO L168 Benchmark]: TraceAbstraction took 279415.34 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 134.7 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 208.3 MB). Peak memory consumption was 343.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:24:28,184 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 615.30 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 109.66 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 7825.15 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -716.8 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 279415.34 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 134.7 MB). Free memory was 2.1 GB in the beginning and 1.9 GB in the end (delta: 208.3 MB). Peak memory consumption was 343.1 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 (342states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement), while ReachableStatesComputation was computing reachable states (630 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 321 locations, 1 error locations. TIMEOUT Result, 279.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 255.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1274 SDtfs, 1700 SDslu, 9995 SDs, 0 SdLazy, 2287 SolverSat, 61 SolverUnsat, 79 SolverUnknown, 0 SolverNotchecked, 215.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 55.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=342occurred 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: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 318 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 187 NumberOfCodeBlocks, 187 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 184 ConstructedInterpolants, 95 QuantifiedInterpolants, 277018 SizeOfPredicates, 37 NumberOfNonLiveVariables, 398 ConjunctsInSsa, 52 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