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_0663b_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:01:20,196 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:01:20,198 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:01:20,211 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:01:20,212 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:01:20,213 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:01:20,214 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:01:20,216 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:01:20,218 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:01:20,219 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:01:20,220 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:01:20,220 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:01:20,221 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:01:20,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:01:20,224 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:01:20,224 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:01:20,225 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:01:20,227 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:01:20,229 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:01:20,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:01:20,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:01:20,233 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:01:20,236 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:01:20,236 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:01:20,237 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:01:20,238 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:01:20,239 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:01:20,240 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:01:20,240 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:01:20,242 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:01:20,242 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:01:20,243 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:01:20,243 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:01:20,243 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:01:20,244 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:01:20,245 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:01:20,246 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 16:01:20,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:01:20,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:01:20,263 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:01:20,263 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:01:20,264 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:01:20,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:01:20,264 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:01:20,265 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:01:20,265 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:01:20,265 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:01:20,265 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:01:20,265 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:01:20,266 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:01:20,266 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:01:20,266 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:01:20,266 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:01:20,267 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:01:20,267 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:01:20,267 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:01:20,267 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:01:20,268 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:01:20,268 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:01:20,268 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:01:20,268 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:01:20,269 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:01:20,269 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:01:20,269 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:01:20,269 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:01:20,269 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:01:20,270 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:01:20,270 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:01:20,270 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:01:20,315 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:01:20,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:01:20,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:01:20,334 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:01:20,336 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:01:20,337 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c [2018-09-19 16:01:20,695 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b20f9a1/5fffd05853e54d56ab3f19c9050d955b/FLAG7f7815ba2 [2018-09-19 16:01:20,897 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:01:20,898 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_0663b_true-unreach-call.c [2018-09-19 16:01:20,913 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b20f9a1/5fffd05853e54d56ab3f19c9050d955b/FLAG7f7815ba2 [2018-09-19 16:01:20,930 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7b20f9a1/5fffd05853e54d56ab3f19c9050d955b [2018-09-19 16:01:20,942 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:01:20,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:01:20,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:01:20,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:01:20,956 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:01:20,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:01:20" (1/1) ... [2018-09-19 16:01:20,960 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51e72f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:20, skipping insertion in model container [2018-09-19 16:01:20,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:01:20" (1/1) ... [2018-09-19 16:01:20,973 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:01:21,270 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:01:21,306 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:01:21,387 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:01:21,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21 WrapperNode [2018-09-19 16:01:21,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:01:21,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:01:21,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:01:21,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:01:21,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,511 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (1/1) ... [2018-09-19 16:01:21,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:01:21,523 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:01:21,523 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:01:21,523 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:01:21,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (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 16:01:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:01:21,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:01:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2018-09-19 16:01:21,669 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2018-09-19 16:01:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_atan2 [2018-09-19 16:01:21,670 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:01:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:01:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:01:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2018-09-19 16:01:21,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:01:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:01:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:01:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:01:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:01:21,671 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:01:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2018-09-19 16:01:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_atan2 [2018-09-19 16:01:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:01:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:01:21,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:01:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:01:21,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:01:22,064 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:22,083 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:22,098 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:22,153 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:22,188 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:22,209 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:24,995 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:25,030 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:25,058 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:25,701 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:25,713 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:25,741 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:41,737 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:41,747 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:41,785 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:41,825 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:01:44,980 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:01:44,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:01:44 BoogieIcfgContainer [2018-09-19 16:01:44,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:01:44,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:01:44,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:01:44,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:01:44,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:01:20" (1/3) ... [2018-09-19 16:01:44,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7892aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:01:44, skipping insertion in model container [2018-09-19 16:01:44,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:01:21" (2/3) ... [2018-09-19 16:01:44,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7892aa29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:01:44, skipping insertion in model container [2018-09-19 16:01:44,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:01:44" (3/3) ... [2018-09-19 16:01:44,991 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0663b_true-unreach-call.c [2018-09-19 16:01:45,001 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:01:45,012 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:01:45,085 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:01:45,086 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:01:45,086 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:01:45,086 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:01:45,086 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:01:45,086 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:01:45,087 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:01:45,087 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:01:45,087 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:01:45,111 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states. [2018-09-19 16:01:45,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-09-19 16:01:45,118 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:01:45,119 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:01:45,121 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:01:45,127 INFO L82 PathProgramCache]: Analyzing trace with hash -1279955196, now seen corresponding path program 1 times [2018-09-19 16:01:45,131 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:01:45,132 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 16:01:45,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:01:45,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:01:45,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:01:45,343 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 16:01:45,343 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:01:45,358 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:01:45,358 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:01:45,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:01:45,374 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:01:45,375 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:01:45,377 INFO L87 Difference]: Start difference. First operand 179 states. Second operand 2 states. [2018-09-19 16:01:45,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:01:45,431 INFO L93 Difference]: Finished difference Result 349 states and 466 transitions. [2018-09-19 16:01:45,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:01:45,433 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-09-19 16:01:45,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:01:45,462 INFO L225 Difference]: With dead ends: 349 [2018-09-19 16:01:45,462 INFO L226 Difference]: Without dead ends: 174 [2018-09-19 16:01:45,471 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 16:01:45,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2018-09-19 16:01:45,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2018-09-19 16:01:45,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2018-09-19 16:01:45,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 213 transitions. [2018-09-19 16:01:45,542 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 213 transitions. Word has length 19 [2018-09-19 16:01:45,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:01:45,542 INFO L480 AbstractCegarLoop]: Abstraction has 174 states and 213 transitions. [2018-09-19 16:01:45,543 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:01:45,543 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 213 transitions. [2018-09-19 16:01:45,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-19 16:01:45,546 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:01:45,546 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] [2018-09-19 16:01:45,546 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:01:45,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1584750586, now seen corresponding path program 1 times [2018-09-19 16:01:45,548 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:01:45,548 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 16:01:45,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:01:45,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:01:45,916 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:01:46,197 INFO L303 Elim1Store]: Index analysis took 135 ms [2018-09-19 16:01:46,203 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 16:01:46,212 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 16:01:46,213 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:01:46,264 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:01:46,353 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 16:01:46,353 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:01:46,531 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 16:01:46,541 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 16:01:46,542 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:01:46,569 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:01:46,684 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 16:01:46,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:01:47,339 WARN L178 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-19 16:01:47,366 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:01:47,367 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:01:47,368 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 16:01:47,383 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:01:47,424 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 16:01:47,425 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:01:47,502 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:01:47,575 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 16:01:47,576 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:51, output treesize:43 [2018-09-19 16:01:48,111 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:01:48,112 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:01:48,114 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 16:01:48,131 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:01:48,156 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 16:01:48,158 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:01:48,205 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:01:48,297 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 16:01:48,298 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:78, output treesize:70 [2018-09-19 16:01:48,461 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 16:01:48,473 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:01:48,480 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 16:01:48,481 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:01:48,504 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:01:48,557 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 16:01:48,557 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:59, output treesize:33 [2018-09-19 16:01:49,625 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 38 [2018-09-19 16:01:49,662 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 16:01:49,662 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:01:49,680 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:01:49,680 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2018-09-19 16:01:49,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-19 16:01:49,683 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-19 16:01:49,683 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=208, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:01:49,683 INFO L87 Difference]: Start difference. First operand 174 states and 213 transitions. Second operand 16 states. [2018-09-19 16:01:51,299 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-19 16:01:51,911 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:01:52,330 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-19 16:01:53,858 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-09-19 16:01:54,657 WARN L178 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-19 16:01:55,159 WARN L178 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-19 16:01:55,984 WARN L178 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2018-09-19 16:01:56,537 WARN L178 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2018-09-19 16:01:57,523 WARN L178 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-19 16:01:58,173 WARN L178 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-19 16:02:00,027 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-19 16:02:00,628 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-09-19 16:02:00,976 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:02:01,943 WARN L178 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2018-09-19 16:02:27,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:02:27,613 INFO L93 Difference]: Finished difference Result 215 states and 262 transitions. [2018-09-19 16:02:27,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 16:02:27,615 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2018-09-19 16:02:27,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:02:27,618 INFO L225 Difference]: With dead ends: 215 [2018-09-19 16:02:27,619 INFO L226 Difference]: Without dead ends: 175 [2018-09-19 16:02:27,621 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=181, Invalid=811, Unknown=0, NotChecked=0, Total=992 [2018-09-19 16:02:27,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2018-09-19 16:02:27,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2018-09-19 16:02:27,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 175 states. [2018-09-19 16:02:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 205 transitions. [2018-09-19 16:02:27,642 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 205 transitions. Word has length 45 [2018-09-19 16:02:27,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:02:27,643 INFO L480 AbstractCegarLoop]: Abstraction has 175 states and 205 transitions. [2018-09-19 16:02:27,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-19 16:02:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 205 transitions. [2018-09-19 16:02:27,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:02:27,645 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:02:27,645 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] [2018-09-19 16:02:27,646 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:02:27,646 INFO L82 PathProgramCache]: Analyzing trace with hash 66485668, now seen corresponding path program 1 times [2018-09-19 16:02:27,646 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:02:27,647 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 16:02:27,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:02:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:02:27,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:02:27,881 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:02:27,882 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:02:27,883 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 16:02:27,893 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:02:27,912 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 16:02:27,914 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:02:27,932 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:02:27,952 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 16:02:27,952 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:02:28,276 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:02:28,279 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:02:28,281 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 16:02:28,293 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:02:28,315 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 16:02:28,316 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:02:28,350 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:02:28,392 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 16:02:28,393 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:02:28,460 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 16:02:28,466 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:02:28,471 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 16:02:28,472 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:02:28,482 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:02:28,495 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 16:02:28,495 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:02:28,868 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 16:02:28,868 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:02:28,887 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:02:28,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:02:28,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:02:28,888 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:02:28,889 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:02:28,889 INFO L87 Difference]: Start difference. First operand 175 states and 205 transitions. Second operand 11 states. [2018-09-19 16:02:29,978 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:02:30,371 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:02:30,662 WARN L178 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:02:40,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:02:40,569 INFO L93 Difference]: Finished difference Result 237 states and 280 transitions. [2018-09-19 16:02:40,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 16:02:40,572 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 50 [2018-09-19 16:02:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:02:40,575 INFO L225 Difference]: With dead ends: 237 [2018-09-19 16:02:40,575 INFO L226 Difference]: Without dead ends: 169 [2018-09-19 16:02:40,577 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2018-09-19 16:02:40,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-09-19 16:02:40,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-09-19 16:02:40,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-09-19 16:02:40,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 194 transitions. [2018-09-19 16:02:40,597 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 194 transitions. Word has length 50 [2018-09-19 16:02:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:02:40,598 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 194 transitions. [2018-09-19 16:02:40,598 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 16:02:40,598 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 194 transitions. [2018-09-19 16:02:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:02:40,600 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:02:40,600 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] [2018-09-19 16:02:40,600 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:02:40,600 INFO L82 PathProgramCache]: Analyzing trace with hash -52671134, now seen corresponding path program 1 times [2018-09-19 16:02:40,601 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:02:40,601 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 16:02:40,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:02:40,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:02:40,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:02:41,006 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 16:02:41,033 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 16:02:41,034 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:02:41,067 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:02:41,123 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 16:02:41,124 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:02:41,196 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 16:02:41,205 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 16:02:41,205 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:02:41,209 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:02:41,223 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 16:02:41,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:02:41,403 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 16:02:41,403 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:02:41,419 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:02:41,420 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:02:41,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:02:41,421 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:02:41,421 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:02:41,421 INFO L87 Difference]: Start difference. First operand 169 states and 194 transitions. Second operand 8 states. [2018-09-19 16:02:42,187 WARN L178 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-19 16:02:42,433 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:02:52,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:02:52,233 INFO L93 Difference]: Finished difference Result 177 states and 201 transitions. [2018-09-19 16:02:52,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-19 16:02:52,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 50 [2018-09-19 16:02:52,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:02:52,237 INFO L225 Difference]: With dead ends: 177 [2018-09-19 16:02:52,237 INFO L226 Difference]: Without dead ends: 169 [2018-09-19 16:02:52,238 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:02:52,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2018-09-19 16:02:52,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2018-09-19 16:02:52,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2018-09-19 16:02:52,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 192 transitions. [2018-09-19 16:02:52,258 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 192 transitions. Word has length 50 [2018-09-19 16:02:52,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:02:52,258 INFO L480 AbstractCegarLoop]: Abstraction has 169 states and 192 transitions. [2018-09-19 16:02:52,258 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:02:52,259 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 192 transitions. [2018-09-19 16:02:52,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-09-19 16:02:52,260 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:02:52,261 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] [2018-09-19 16:02:52,261 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:02:52,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1722336228, now seen corresponding path program 1 times [2018-09-19 16:02:52,262 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:02:52,262 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) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-19 16:02:52,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:02:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:02:52,466 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:02:52,855 WARN L178 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:02:53,463 WARN L178 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:02:53,743 WARN L178 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:02:54,020 WARN L178 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:02:54,032 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 16:02:54,033 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:02:54,045 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:02:54,045 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-19 16:02:54,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 16:02:54,046 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 16:02:54,046 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-19 16:02:54,046 INFO L87 Difference]: Start difference. First operand 169 states and 192 transitions. Second operand 7 states. [2018-09-19 16:03:03,847 WARN L178 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:03:07,693 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:03:12,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:03:12,119 INFO L93 Difference]: Finished difference Result 175 states and 197 transitions. [2018-09-19 16:03:12,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 16:03:12,121 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 50 [2018-09-19 16:03:12,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:03:12,123 INFO L225 Difference]: With dead ends: 175 [2018-09-19 16:03:12,123 INFO L226 Difference]: Without dead ends: 167 [2018-09-19 16:03:12,124 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:03:12,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-09-19 16:03:12,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-09-19 16:03:12,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-09-19 16:03:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 189 transitions. [2018-09-19 16:03:12,153 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 189 transitions. Word has length 50 [2018-09-19 16:03:12,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:03:12,154 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 189 transitions. [2018-09-19 16:03:12,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 16:03:12,154 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 189 transitions. [2018-09-19 16:03:12,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-19 16:03:12,155 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:03:12,156 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] [2018-09-19 16:03:12,156 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:03:12,156 INFO L82 PathProgramCache]: Analyzing trace with hash -808895176, now seen corresponding path program 1 times [2018-09-19 16:03:12,160 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:03:12,160 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:03:12,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:03:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:03:12,423 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:03:12,941 WARN L178 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:03:13,474 WARN L178 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:03:13,863 WARN L178 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:03:14,502 WARN L178 SmtUtils]: Spent 408.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-19 16:03:14,511 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 16:03:14,511 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:03:14,523 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:03:14,524 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-19 16:03:14,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 16:03:14,526 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 16:03:14,526 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-19 16:03:14,526 INFO L87 Difference]: Start difference. First operand 167 states and 189 transitions. Second operand 7 states. [2018-09-19 16:03:27,269 WARN L178 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:03:28,417 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-19 16:03:31,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:03:31,836 INFO L93 Difference]: Finished difference Result 173 states and 194 transitions. [2018-09-19 16:03:31,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 16:03:31,838 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2018-09-19 16:03:31,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:03:31,840 INFO L225 Difference]: With dead ends: 173 [2018-09-19 16:03:31,840 INFO L226 Difference]: Without dead ends: 153 [2018-09-19 16:03:31,841 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:03:31,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-09-19 16:03:31,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2018-09-19 16:03:31,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-09-19 16:03:31,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 172 transitions. [2018-09-19 16:03:31,857 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 172 transitions. Word has length 52 [2018-09-19 16:03:31,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:03:31,857 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 172 transitions. [2018-09-19 16:03:31,857 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 16:03:31,858 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 172 transitions. [2018-09-19 16:03:31,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2018-09-19 16:03:31,859 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:03:31,859 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] [2018-09-19 16:03:31,859 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:03:31,860 INFO L82 PathProgramCache]: Analyzing trace with hash 450754314, now seen corresponding path program 1 times [2018-09-19 16:03:31,860 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:03:31,860 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:03:31,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:03:32,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:03:32,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:03:34,746 WARN L178 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:03:37,600 WARN L178 SmtUtils]: Spent 1.78 s on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:03:37,941 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-19 16:03:38,328 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-09-19 16:03:38,340 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 16:03:38,341 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:03:38,355 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:03:38,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-19 16:03:38,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 16:03:38,356 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 16:03:38,356 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-19 16:03:38,356 INFO L87 Difference]: Start difference. First operand 153 states and 172 transitions. Second operand 7 states. [2018-09-19 16:03:59,248 WARN L178 SmtUtils]: Spent 2.15 s on a formula simplification that was a NOOP. DAG size: 18 [2018-09-19 16:04:02,073 WARN L178 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:04:03,380 WARN L178 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:04:09,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:04:09,965 INFO L93 Difference]: Finished difference Result 183 states and 205 transitions. [2018-09-19 16:04:09,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 16:04:09,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2018-09-19 16:04:09,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:04:09,972 INFO L225 Difference]: With dead ends: 183 [2018-09-19 16:04:09,972 INFO L226 Difference]: Without dead ends: 177 [2018-09-19 16:04:09,972 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:04:09,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-09-19 16:04:09,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 155. [2018-09-19 16:04:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2018-09-19 16:04:09,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 174 transitions. [2018-09-19 16:04:09,989 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 174 transitions. Word has length 53 [2018-09-19 16:04:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:04:09,989 INFO L480 AbstractCegarLoop]: Abstraction has 155 states and 174 transitions. [2018-09-19 16:04:09,990 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 16:04:09,990 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 174 transitions. [2018-09-19 16:04:09,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-09-19 16:04:09,990 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:04:09,991 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] [2018-09-19 16:04:09,991 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:04:09,991 INFO L82 PathProgramCache]: Analyzing trace with hash -2059390900, now seen corresponding path program 1 times [2018-09-19 16:04:09,991 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:04:09,992 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-19 16:04:09,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:04:10,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:04:10,150 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:04:10,187 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 16:04:10,193 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 16:04:10,193 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:10,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:10,215 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 16:04:10,215 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:04:10,258 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 16:04:10,262 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 16:04:10,263 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:10,266 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:10,277 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 16:04:10,277 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:04:10,873 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-19 16:04:11,023 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 16:04:11,024 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:04:11,035 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:04:11,036 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:04:11,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:04:11,037 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:04:11,037 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:04:11,037 INFO L87 Difference]: Start difference. First operand 155 states and 174 transitions. Second operand 11 states. [2018-09-19 16:04:13,098 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-19 16:04:13,647 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2018-09-19 16:04:15,732 WARN L178 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2018-09-19 16:04:21,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:04:21,763 INFO L93 Difference]: Finished difference Result 221 states and 246 transitions. [2018-09-19 16:04:21,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-19 16:04:21,766 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 54 [2018-09-19 16:04:21,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:04:21,767 INFO L225 Difference]: With dead ends: 221 [2018-09-19 16:04:21,768 INFO L226 Difference]: Without dead ends: 182 [2018-09-19 16:04:21,769 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2018-09-19 16:04:21,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2018-09-19 16:04:21,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 153. [2018-09-19 16:04:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-09-19 16:04:21,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 169 transitions. [2018-09-19 16:04:21,784 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 169 transitions. Word has length 54 [2018-09-19 16:04:21,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:04:21,785 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 169 transitions. [2018-09-19 16:04:21,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 16:04:21,785 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 169 transitions. [2018-09-19 16:04:21,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2018-09-19 16:04:21,786 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:04:21,786 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] [2018-09-19 16:04:21,787 INFO L423 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:04:21,787 INFO L82 PathProgramCache]: Analyzing trace with hash -233480410, now seen corresponding path program 1 times [2018-09-19 16:04:21,787 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:04:21,790 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2018-09-19 16:04:21,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:04:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:04:22,222 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:04:22,457 INFO L303 Elim1Store]: Index analysis took 121 ms [2018-09-19 16:04:22,457 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 16:04:22,467 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 16:04:22,467 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:22,532 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:22,626 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 16:04:22,626 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:27, output treesize:23 [2018-09-19 16:04:22,708 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 16:04:22,715 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 16:04:22,716 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:22,723 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:22,823 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 16:04:22,823 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:32, output treesize:17 [2018-09-19 16:04:23,045 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 16:04:23,063 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 16:04:23,064 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:23,095 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:23,169 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 16:04:23,169 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:37, output treesize:33 [2018-09-19 16:04:23,292 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 16:04:23,300 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 16:04:23,300 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:23,307 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:23,335 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 16:04:23,336 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:42, output treesize:27 [2018-09-19 16:04:23,995 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2018-09-19 16:04:24,286 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 16:04:24,286 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:04:24,308 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:04:24,308 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-19 16:04:24,309 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-19 16:04:24,309 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-19 16:04:24,309 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2018-09-19 16:04:24,311 INFO L87 Difference]: Start difference. First operand 153 states and 169 transitions. Second operand 14 states. [2018-09-19 16:04:25,172 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:04:25,625 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-19 16:04:28,064 WARN L178 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:04:28,469 WARN L178 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-09-19 16:04:29,055 WARN L178 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:04:30,028 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-19 16:04:30,600 WARN L178 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-09-19 16:04:31,151 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-09-19 16:04:35,504 WARN L178 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2018-09-19 16:04:40,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:04:40,732 INFO L93 Difference]: Finished difference Result 159 states and 174 transitions. [2018-09-19 16:04:40,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2018-09-19 16:04:40,736 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2018-09-19 16:04:40,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:04:40,737 INFO L225 Difference]: With dead ends: 159 [2018-09-19 16:04:40,737 INFO L226 Difference]: Without dead ends: 124 [2018-09-19 16:04:40,738 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=139, Invalid=617, Unknown=0, NotChecked=0, Total=756 [2018-09-19 16:04:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2018-09-19 16:04:40,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2018-09-19 16:04:40,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-09-19 16:04:40,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 135 transitions. [2018-09-19 16:04:40,752 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 135 transitions. Word has length 55 [2018-09-19 16:04:40,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:04:40,752 INFO L480 AbstractCegarLoop]: Abstraction has 124 states and 135 transitions. [2018-09-19 16:04:40,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-19 16:04:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 135 transitions. [2018-09-19 16:04:40,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2018-09-19 16:04:40,753 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:04:40,754 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:04:40,754 INFO L423 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:04:40,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1376327592, now seen corresponding path program 1 times [2018-09-19 16:04:40,755 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:04:40,755 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2018-09-19 16:04:40,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:04:41,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:04:41,899 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:04:42,084 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 16:04:42,098 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 16:04:42,100 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:42,128 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:42,201 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 16:04:42,201 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:04:42,267 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 16:04:42,275 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 16:04:42,276 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:42,279 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:42,291 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 16:04:42,291 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 [2018-09-19 16:04:42,403 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 16 treesize of output 13 [2018-09-19 16:04:42,410 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 13 treesize of output 12 [2018-09-19 16:04:42,411 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:04:42,416 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:04:42,435 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 16:04:42,435 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:26, output treesize:22 [2018-09-19 16:04:42,521 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 58 treesize of output 44 [2018-09-19 16:04:42,533 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:04:42,539 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 44 treesize of output 31 [2018-09-19 16:04:42,540 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 16:04:42,556 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 16:04:42,576 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:04:42,577 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:67, output treesize:34 [2018-09-19 16:05:09,989 WARN L178 SmtUtils]: Spent 2.41 s on a formula simplification that was a NOOP. DAG size: 23 [2018-09-19 16:05:16,546 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 16:05:16,565 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 16:05:16,565 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:05:16,590 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:05:16,635 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 16:05:16,636 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:20 [2018-09-19 16:05:19,239 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 16:05:19,245 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 16:05:19,245 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:05:19,248 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:05:19,260 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 16:05:19,260 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:29, output treesize:14 Received shutdown request... [2018-09-19 16:06:05,090 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-19 16:06:05,291 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2018-09-19 16:06:05,292 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 16:06:05,298 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 16:06:05,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:06:05 BoogieIcfgContainer [2018-09-19 16:06:05,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:06:05,299 INFO L168 Benchmark]: Toolchain (without parser) took 284355.97 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 1.7 GB in the end (delta: -318.8 MB). Peak memory consumption was 544.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:06:05,299 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 16:06:05,300 INFO L168 Benchmark]: CACSL2BoogieTranslator took 500.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-19 16:06:05,300 INFO L168 Benchmark]: Boogie Preprocessor took 74.10 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 16:06:05,301 INFO L168 Benchmark]: RCFGBuilder took 23458.75 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -735.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:06:05,301 INFO L168 Benchmark]: TraceAbstraction took 260315.62 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 137.9 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 395.4 MB). Peak memory consumption was 533.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:06:05,305 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 500.22 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.10 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 23458.75 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 725.6 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -735.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 260315.62 ms. Allocated memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: 137.9 MB). Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 395.4 MB). Peak memory consumption was 533.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 260]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 260). Cancelled while BasicCegarLoop was analyzing trace of length 102 with TraceHistMax 1, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 19 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 179 locations, 1 error locations. TIMEOUT Result, 260.2s OverallTime, 10 OverallIterations, 1 TraceHistogramMax, 154.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1706 SDtfs, 2135 SDslu, 8573 SDs, 0 SdLazy, 1610 SolverSat, 127 SolverUnsat, 27 SolverUnknown, 0 SolverNotchecked, 126.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 482 GetRequests, 349 SyntacticMatches, 5 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 35.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=0, 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 51 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 428 NumberOfCodeBlocks, 428 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 419 ConstructedInterpolants, 149 QuantifiedInterpolants, 281550 SizeOfPredicates, 72 NumberOfNonLiveVariables, 1143 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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