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/float_req_bl_0882_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:30:53,511 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:30:53,513 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:30:53,526 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:30:53,526 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:30:53,527 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:30:53,528 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:30:53,530 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:30:53,532 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:30:53,533 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:30:53,534 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:30:53,534 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:30:53,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:30:53,536 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:30:53,537 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:30:53,538 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:30:53,539 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:30:53,541 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:30:53,543 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:30:53,545 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:30:53,546 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:30:53,547 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:30:53,552 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:30:53,552 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:30:53,555 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:30:53,556 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:30:53,557 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:30:53,558 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:30:53,558 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:30:53,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:30:53,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:30:53,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:30:53,561 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:30:53,561 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:30:53,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:30:53,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:30:53,563 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 16:30:53,578 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:30:53,578 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:30:53,579 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:30:53,579 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:30:53,580 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:30:53,580 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:30:53,580 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:30:53,581 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:30:53,581 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:30:53,581 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:30:53,581 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:30:53,581 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:30:53,582 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:30:53,582 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:30:53,582 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:30:53,582 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:30:53,582 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:30:53,583 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:30:53,583 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:30:53,583 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:30:53,583 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:30:53,583 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:30:53,583 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:30:53,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:30:53,584 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:30:53,584 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:30:53,584 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:30:53,584 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:30:53,585 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:30:53,585 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:30:53,585 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:30:53,585 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:30:53,634 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:30:53,651 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:30:53,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:30:53,657 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:30:53,657 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:30:53,658 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0882_true-unreach-call.c [2018-09-19 16:30:54,053 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b17697439/7d8b7a3b2294445ba47cc050d3a6b4e2/FLAGa6ab14acf [2018-09-19 16:30:54,235 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:30:54,236 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0882_true-unreach-call.c [2018-09-19 16:30:54,249 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b17697439/7d8b7a3b2294445ba47cc050d3a6b4e2/FLAGa6ab14acf [2018-09-19 16:30:54,265 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b17697439/7d8b7a3b2294445ba47cc050d3a6b4e2 [2018-09-19 16:30:54,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:30:54,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:30:54,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:30:54,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:30:54,289 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:30:54,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:54,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72d54a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54, skipping insertion in model container [2018-09-19 16:30:54,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:54,306 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:30:54,731 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:30:54,757 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:30:54,874 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:30:54,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54 WrapperNode [2018-09-19 16:30:54,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:30:54,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:30:54,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:30:54,940 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:30:54,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:54,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:54,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:54,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:55,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:55,085 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:55,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (1/1) ... [2018-09-19 16:30:55,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:30:55,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:30:55,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:30:55,119 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:30:55,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (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 16:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_float [2018-09-19 16:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-19 16:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-19 16:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-19 16:30:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-19 16:30:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_powf [2018-09-19 16:30:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:30:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:30:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:30:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_float [2018-09-19 16:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-19 16:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-19 16:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-19 16:30:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-19 16:30:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_powf [2018-09-19 16:30:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:30:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:30:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:30:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:30:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:30:55,848 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:55,887 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:55,965 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:55,987 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:56,174 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:56,215 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:56,334 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:30:56,377 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:01,676 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:01,706 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:01,942 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:01,950 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:03,223 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:03,234 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:05,662 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:05,670 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:07,798 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:07,830 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:09,957 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:09,964 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:10,480 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:10,488 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:12,558 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:12,564 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:14,501 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:14,509 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:16,802 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:16,810 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:19,093 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:19,135 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:19,889 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:19,896 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:20,050 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:20,088 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:20,606 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:20,613 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:20,707 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:20,717 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:22,007 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:22,014 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:31:22,916 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:31:22,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:31:22 BoogieIcfgContainer [2018-09-19 16:31:22,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:31:22,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:31:22,919 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:31:22,922 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:31:22,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:30:54" (1/3) ... [2018-09-19 16:31:22,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7fd6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:31:22, skipping insertion in model container [2018-09-19 16:31:22,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:30:54" (2/3) ... [2018-09-19 16:31:22,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d7fd6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:31:22, skipping insertion in model container [2018-09-19 16:31:22,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:31:22" (3/3) ... [2018-09-19 16:31:22,926 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0882_true-unreach-call.c [2018-09-19 16:31:22,937 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:31:22,949 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:31:23,004 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:31:23,005 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:31:23,005 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:31:23,006 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:31:23,006 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:31:23,006 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:31:23,006 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:31:23,006 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:31:23,006 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:31:23,040 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states. [2018-09-19 16:31:23,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-09-19 16:31:23,049 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:31:23,050 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:31:23,053 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:31:23,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1709427335, now seen corresponding path program 1 times [2018-09-19 16:31:23,063 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:31:23,063 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 16:31:23,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:31:23,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:31:23,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:31:23,281 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 16:31:23,281 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:31:23,294 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:31:23,295 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:31:23,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:31:23,310 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:31:23,311 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:31:23,313 INFO L87 Difference]: Start difference. First operand 485 states. Second operand 2 states. [2018-09-19 16:31:23,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:31:23,407 INFO L93 Difference]: Finished difference Result 961 states and 1234 transitions. [2018-09-19 16:31:23,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:31:23,409 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-09-19 16:31:23,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:31:23,429 INFO L225 Difference]: With dead ends: 961 [2018-09-19 16:31:23,429 INFO L226 Difference]: Without dead ends: 480 [2018-09-19 16:31:23,443 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 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 16:31:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2018-09-19 16:31:23,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2018-09-19 16:31:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-09-19 16:31:23,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 542 transitions. [2018-09-19 16:31:23,534 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 542 transitions. Word has length 18 [2018-09-19 16:31:23,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:31:23,534 INFO L480 AbstractCegarLoop]: Abstraction has 480 states and 542 transitions. [2018-09-19 16:31:23,534 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:31:23,535 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 542 transitions. [2018-09-19 16:31:23,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-09-19 16:31:23,536 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:31:23,536 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] [2018-09-19 16:31:23,537 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:31:23,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1459716733, now seen corresponding path program 1 times [2018-09-19 16:31:23,538 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:31:23,538 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 16:31:23,543 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:31:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:31:23,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:31:23,786 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 11 treesize of output 8 [2018-09-19 16:31:23,792 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 8 treesize of output 7 [2018-09-19 16:31:23,793 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:23,797 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:23,809 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:23,810 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:31:23,889 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 29 treesize of output 21 [2018-09-19 16:31:23,893 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 21 treesize of output 9 [2018-09-19 16:31:23,894 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:23,899 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:23,902 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:23,903 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:31:24,271 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 16:31:24,272 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:31:24,287 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:31:24,288 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:31:24,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:31:24,290 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:31:24,290 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:31:24,291 INFO L87 Difference]: Start difference. First operand 480 states and 542 transitions. Second operand 9 states. [2018-09-19 16:31:31,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:31:31,105 INFO L93 Difference]: Finished difference Result 488 states and 549 transitions. [2018-09-19 16:31:31,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:31:31,107 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-09-19 16:31:31,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:31:31,115 INFO L225 Difference]: With dead ends: 488 [2018-09-19 16:31:31,115 INFO L226 Difference]: Without dead ends: 482 [2018-09-19 16:31:31,117 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:31:31,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2018-09-19 16:31:31,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 480. [2018-09-19 16:31:31,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-09-19 16:31:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 541 transitions. [2018-09-19 16:31:31,167 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 541 transitions. Word has length 36 [2018-09-19 16:31:31,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:31:31,167 INFO L480 AbstractCegarLoop]: Abstraction has 480 states and 541 transitions. [2018-09-19 16:31:31,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:31:31,167 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 541 transitions. [2018-09-19 16:31:31,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 16:31:31,169 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:31:31,169 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] [2018-09-19 16:31:31,169 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:31:31,170 INFO L82 PathProgramCache]: Analyzing trace with hash -772013735, now seen corresponding path program 1 times [2018-09-19 16:31:31,170 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:31:31,170 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 16:31:31,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:31:31,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:31:31,332 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:31:31,362 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 11 treesize of output 8 [2018-09-19 16:31:31,366 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 8 treesize of output 7 [2018-09-19 16:31:31,367 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:31,375 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:31,386 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:31,387 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:31:31,414 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 29 treesize of output 21 [2018-09-19 16:31:31,423 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 21 treesize of output 9 [2018-09-19 16:31:31,424 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:31,427 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:31,431 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:31,431 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:31:31,571 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 16:31:31,572 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:31:31,587 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:31:31,587 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:31:31,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:31:31,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:31:31,589 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:31:31,589 INFO L87 Difference]: Start difference. First operand 480 states and 541 transitions. Second operand 9 states. [2018-09-19 16:31:38,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:31:38,074 INFO L93 Difference]: Finished difference Result 595 states and 667 transitions. [2018-09-19 16:31:38,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:31:38,077 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 38 [2018-09-19 16:31:38,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:31:38,081 INFO L225 Difference]: With dead ends: 595 [2018-09-19 16:31:38,081 INFO L226 Difference]: Without dead ends: 588 [2018-09-19 16:31:38,082 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:31:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2018-09-19 16:31:38,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 480. [2018-09-19 16:31:38,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-09-19 16:31:38,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 538 transitions. [2018-09-19 16:31:38,110 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 538 transitions. Word has length 38 [2018-09-19 16:31:38,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:31:38,111 INFO L480 AbstractCegarLoop]: Abstraction has 480 states and 538 transitions. [2018-09-19 16:31:38,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:31:38,111 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 538 transitions. [2018-09-19 16:31:38,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-09-19 16:31:38,113 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:31:38,113 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] [2018-09-19 16:31:38,113 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:31:38,113 INFO L82 PathProgramCache]: Analyzing trace with hash -743384584, now seen corresponding path program 1 times [2018-09-19 16:31:38,114 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:31:38,114 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-19 16:31:38,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:31:38,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:31:38,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:31:38,513 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 11 treesize of output 8 [2018-09-19 16:31:38,520 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 8 treesize of output 7 [2018-09-19 16:31:38,521 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,533 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,552 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,553 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:25 [2018-09-19 16:31:38,615 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 29 treesize of output 21 [2018-09-19 16:31:38,620 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 21 treesize of output 9 [2018-09-19 16:31:38,621 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,633 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,654 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,654 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:13 [2018-09-19 16:31:38,747 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 11 treesize of output 8 [2018-09-19 16:31:38,753 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 8 treesize of output 7 [2018-09-19 16:31:38,753 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,759 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,784 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,784 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:30, output treesize:31 [2018-09-19 16:31:38,869 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 29 treesize of output 21 [2018-09-19 16:31:38,875 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 21 treesize of output 9 [2018-09-19 16:31:38,876 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,881 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,893 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:31:38,894 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:38, output treesize:19 [2018-09-19 16:31:39,311 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 16:31:39,311 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:31:39,322 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:31:39,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-09-19 16:31:39,323 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-19 16:31:39,323 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-19 16:31:39,324 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2018-09-19 16:31:39,324 INFO L87 Difference]: Start difference. First operand 480 states and 538 transitions. Second operand 13 states. [2018-09-19 16:31:40,068 WARN L178 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:31:40,446 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:31:41,060 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-19 16:31:41,417 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:31:59,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:31:59,720 INFO L93 Difference]: Finished difference Result 512 states and 570 transitions. [2018-09-19 16:31:59,722 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-09-19 16:31:59,722 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 38 [2018-09-19 16:31:59,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:31:59,725 INFO L225 Difference]: With dead ends: 512 [2018-09-19 16:31:59,725 INFO L226 Difference]: Without dead ends: 505 [2018-09-19 16:31:59,726 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=112, Invalid=488, Unknown=0, NotChecked=0, Total=600 [2018-09-19 16:31:59,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2018-09-19 16:31:59,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 479. [2018-09-19 16:31:59,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2018-09-19 16:31:59,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 536 transitions. [2018-09-19 16:31:59,748 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 536 transitions. Word has length 38 [2018-09-19 16:31:59,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:31:59,749 INFO L480 AbstractCegarLoop]: Abstraction has 479 states and 536 transitions. [2018-09-19 16:31:59,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-19 16:31:59,749 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 536 transitions. [2018-09-19 16:31:59,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-09-19 16:31:59,750 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:31:59,750 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] [2018-09-19 16:31:59,751 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:31:59,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1740676164, now seen corresponding path program 1 times [2018-09-19 16:31:59,751 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:31:59,752 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 16:31:59,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 16:32:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:32:00,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:32:06,999 WARN L178 SmtUtils]: Spent 3.39 s on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:32:09,834 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 16:32:09,834 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:32:09,852 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:32:09,852 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:32:09,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:32:09,853 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:32:09,854 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=39, Unknown=1, NotChecked=0, Total=56 [2018-09-19 16:32:09,854 INFO L87 Difference]: Start difference. First operand 479 states and 536 transitions. Second operand 8 states. [2018-09-19 16:32:22,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 16:32:22,262 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:140) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:893) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:732) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:338) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:381) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:78) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:674) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 43 more [2018-09-19 16:32:22,266 INFO L168 Benchmark]: Toolchain (without parser) took 87987.85 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 897.1 MB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -955.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:32:22,267 INFO L168 Benchmark]: CDTParser took 0.23 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 16:32:22,267 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.98 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:32:22,268 INFO L168 Benchmark]: Boogie Preprocessor took 178.19 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 16:32:22,269 INFO L168 Benchmark]: RCFGBuilder took 27798.93 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -678.3 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2018-09-19 16:32:22,269 INFO L168 Benchmark]: TraceAbstraction took 59346.51 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 161.5 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -308.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:32:22,273 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 657.98 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.19 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 27798.93 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 735.6 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -678.3 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 59346.51 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 161.5 MB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -308.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...