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_1270c_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:19:39,241 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:19:39,243 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:19:39,257 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:19:39,257 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:19:39,258 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:19:39,259 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:19:39,261 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:19:39,263 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:19:39,264 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:19:39,265 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:19:39,265 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:19:39,266 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:19:39,267 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:19:39,269 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:19:39,269 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:19:39,270 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:19:39,272 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:19:39,274 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:19:39,276 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:19:39,277 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:19:39,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:19:39,281 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:19:39,281 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:19:39,282 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:19:39,283 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:19:39,284 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:19:39,285 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:19:39,286 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:19:39,287 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:19:39,287 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:19:39,288 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:19:39,288 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:19:39,288 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:19:39,289 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:19:39,290 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:19:39,290 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-19 16:19:39,311 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:19:39,312 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:19:39,313 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:19:39,313 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:19:39,314 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:19:39,314 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:19:39,315 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:19:39,315 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:19:39,315 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:19:39,316 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:19:39,317 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:19:39,317 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:19:39,317 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:19:39,317 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:19:39,317 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:19:39,318 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:19:39,318 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:19:39,318 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:19:39,318 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:19:39,319 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:19:39,320 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:19:39,320 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:19:39,320 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:19:39,320 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:19:39,321 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:19:39,321 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:19:39,321 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:19:39,321 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:19:39,321 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:19:39,322 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:19:39,322 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:19:39,322 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:19:39,387 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:19:39,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:19:39,408 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:19:39,409 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:19:39,410 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:19:39,411 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1270c_true-unreach-call.c [2018-09-19 16:19:39,768 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c733f7b/7f59d8bd07234c49926d007650279850/FLAG20639552d [2018-09-19 16:19:39,974 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:19:39,975 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1270c_true-unreach-call.c [2018-09-19 16:19:39,985 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c733f7b/7f59d8bd07234c49926d007650279850/FLAG20639552d [2018-09-19 16:19:40,001 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22c733f7b/7f59d8bd07234c49926d007650279850 [2018-09-19 16:19:40,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:19:40,017 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:19:40,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:40,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:19:40,028 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:19:40,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,032 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f1a77a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40, skipping insertion in model container [2018-09-19 16:19:40,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,046 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:19:40,371 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:40,395 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:19:40,495 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:19:40,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40 WrapperNode [2018-09-19 16:19:40,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:19:40,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:19:40,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:19:40,576 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:19:40,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,617 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,618 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... [2018-09-19 16:19:40,668 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:19:40,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:19:40,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:19:40,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:19:40,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:19:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:19:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:19:40,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2018-09-19 16:19:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_hypot [2018-09-19 16:19:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_double [2018-09-19 16:19:40,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:19:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:19:40,861 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:19:40,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_hypot [2018-09-19 16:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_double [2018-09-19 16:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:19:40,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:19:40,866 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:19:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:19:40,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:19:41,224 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,253 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,274 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,512 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,550 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:41,585 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:45,832 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:45,902 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,117 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,320 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,443 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,574 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,612 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:46,708 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,243 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,270 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,394 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,435 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,487 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,585 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,907 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,917 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,935 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,943 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:47,971 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:48,032 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:48,087 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:48,102 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:48,126 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:19:49,603 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:19:49,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:49 BoogieIcfgContainer [2018-09-19 16:19:49,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:19:49,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:19:49,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:19:49,610 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:19:49,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:19:40" (1/3) ... [2018-09-19 16:19:49,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f10d652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:49, skipping insertion in model container [2018-09-19 16:19:49,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:19:40" (2/3) ... [2018-09-19 16:19:49,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f10d652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:19:49, skipping insertion in model container [2018-09-19 16:19:49,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:19:49" (3/3) ... [2018-09-19 16:19:49,615 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1270c_true-unreach-call.c [2018-09-19 16:19:49,627 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:19:49,637 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:19:49,711 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:19:49,712 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:19:49,712 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:19:49,713 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:19:49,713 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:19:49,713 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:19:49,713 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:19:49,713 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:19:49,714 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:19:49,767 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2018-09-19 16:19:49,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-19 16:19:49,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:49,787 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:19:49,791 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:49,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1307480282, now seen corresponding path program 1 times [2018-09-19 16:19:49,803 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:49,804 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 16:19:49,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:49,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:50,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:50,032 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 16:19:50,032 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:50,050 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:50,050 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:19:50,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:19:50,067 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:19:50,067 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:50,070 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 2 states. [2018-09-19 16:19:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:19:50,135 INFO L93 Difference]: Finished difference Result 634 states and 789 transitions. [2018-09-19 16:19:50,135 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:19:50,137 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-09-19 16:19:50,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:19:50,158 INFO L225 Difference]: With dead ends: 634 [2018-09-19 16:19:50,158 INFO L226 Difference]: Without dead ends: 317 [2018-09-19 16:19:50,166 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:19:50,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2018-09-19 16:19:50,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2018-09-19 16:19:50,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2018-09-19 16:19:50,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 348 transitions. [2018-09-19 16:19:50,243 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 348 transitions. Word has length 27 [2018-09-19 16:19:50,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:19:50,244 INFO L480 AbstractCegarLoop]: Abstraction has 317 states and 348 transitions. [2018-09-19 16:19:50,244 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:19:50,245 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 348 transitions. [2018-09-19 16:19:50,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:19:50,249 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:19:50,250 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:19:50,250 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:19:50,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1824837538, now seen corresponding path program 1 times [2018-09-19 16:19:50,252 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:19:50,253 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:19:50,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:19:50,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:19:50,670 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:19:50,875 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:19:50,883 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:19:50,884 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:50,923 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,279 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:51,279 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:32, output treesize:28 [2018-09-19 16:19:51,472 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:19:51,512 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:19:51,513 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:51,700 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:52,142 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:52,143 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:37, output treesize:22 [2018-09-19 16:19:52,355 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-19 16:19:52,855 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2018-09-19 16:19:52,862 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 8 [2018-09-19 16:19:52,863 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:52,894 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:52,941 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:52,941 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:42, output treesize:38 [2018-09-19 16:19:53,070 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 17 [2018-09-19 16:19:53,081 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:19:53,091 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 24 [2018-09-19 16:19:53,092 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:53,116 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:53,167 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:53,168 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:51, output treesize:47 [2018-09-19 16:19:53,333 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 47 [2018-09-19 16:19:53,347 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:19:53,359 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2018-09-19 16:19:53,360 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:53,380 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:53,460 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:53,461 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:92, output treesize:48 [2018-09-19 16:19:53,930 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 10 [2018-09-19 16:19:53,939 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2018-09-19 16:19:53,939 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:19:53,950 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:19:54,019 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 3 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:54,020 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:61, output treesize:57 [2018-09-19 16:19:54,255 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 41 [2018-09-19 16:19:54,294 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:19:54,321 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 22 [2018-09-19 16:19:54,322 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:54,361 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:54,424 INFO L267 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 1 dim-2 vars, End of recursive call: 4 dim-0 vars, and 1 xjuncts. [2018-09-19 16:19:54,424 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 6 variables, input treesize:102, output treesize:63 [2018-09-19 16:19:56,648 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2018-09-19 16:19:58,464 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2018-09-19 16:20:02,080 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:02,081 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:02,082 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 35 [2018-09-19 16:20:02,092 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:20:02,112 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 25 [2018-09-19 16:20:02,112 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:20:02,133 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:20:02,158 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:20:02,159 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:36, output treesize:28 [2018-09-19 16:20:04,608 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:04,608 INFO L682 Elim1Store]: detected equality via solver [2018-09-19 16:20:04,610 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 56 [2018-09-19 16:20:04,644 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:20:04,668 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 52 [2018-09-19 16:20:04,669 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:20:04,718 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:20:04,764 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:20:04,765 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:63, output treesize:55 [2018-09-19 16:20:05,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2018-09-19 16:20:05,716 INFO L700 Elim1Store]: detected not equals via solver [2018-09-19 16:20:05,721 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-09-19 16:20:05,722 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:20:05,830 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:20:05,858 INFO L267 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:20:05,859 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:44, output treesize:18 [2018-09-19 16:20:11,157 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-19 16:20:11,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:20:11,324 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:20:11,342 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:20:11,342 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2018-09-19 16:20:11,345 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2018-09-19 16:20:11,345 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2018-09-19 16:20:11,346 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=688, Unknown=0, NotChecked=0, Total=756 [2018-09-19 16:20:11,346 INFO L87 Difference]: Start difference. First operand 317 states and 348 transitions. Second operand 28 states. [2018-09-19 16:20:12,561 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:20:14,219 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:20:15,747 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 24 [2018-09-19 16:20:17,349 WARN L178 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-09-19 16:20:18,454 WARN L178 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2018-09-19 16:20:20,756 WARN L178 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2018-09-19 16:20:22,423 WARN L178 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2018-09-19 16:20:23,643 WARN L178 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2018-09-19 16:20:24,620 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2018-09-19 16:20:26,579 WARN L178 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2018-09-19 16:20:28,018 WARN L178 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2018-09-19 16:20:29,654 WARN L178 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2018-09-19 16:20:31,568 WARN L178 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2018-09-19 16:20:32,580 WARN L178 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-19 16:20:44,104 WARN L178 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2018-09-19 16:20:52,769 WARN L178 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:21:01,826 WARN L178 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2018-09-19 16:21:12,467 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 16:21:13,869 WARN L178 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2018-09-19 16:21:19,140 WARN L178 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2018-09-19 16:21:21,522 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:21:32,748 WARN L178 SmtUtils]: Spent 979.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2018-09-19 16:23:19,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:23:19,954 INFO L93 Difference]: Finished difference Result 594 states and 645 transitions. [2018-09-19 16:23:20,164 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-19 16:23:20,165 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 80 [2018-09-19 16:23:20,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:23:20,179 INFO L225 Difference]: With dead ends: 594 [2018-09-19 16:23:20,180 INFO L226 Difference]: Without dead ends: 587 [2018-09-19 16:23:20,183 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 693 ImplicationChecksByTransitivity, 53.1s TimeCoverageRelationStatistics Valid=273, Invalid=2806, Unknown=1, NotChecked=0, Total=3080 [2018-09-19 16:23:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2018-09-19 16:23:20,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 342. [2018-09-19 16:23:20,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2018-09-19 16:23:20,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 373 transitions. [2018-09-19 16:23:20,229 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 373 transitions. Word has length 80 [2018-09-19 16:23:20,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:23:20,230 INFO L480 AbstractCegarLoop]: Abstraction has 342 states and 373 transitions. [2018-09-19 16:23:20,230 INFO L481 AbstractCegarLoop]: Interpolant automaton has 28 states. [2018-09-19 16:23:20,230 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 373 transitions. [2018-09-19 16:23:20,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2018-09-19 16:23:20,240 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:23:20,241 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:23:20,241 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:23:20,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1343757280, now seen corresponding path program 1 times [2018-09-19 16:23:20,242 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:23:20,244 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:23:20,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:23:20,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:23:20,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:23:20,641 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 11 [2018-09-19 16:23:20,648 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 10 [2018-09-19 16:23:20,648 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:23:20,656 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:23:20,685 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:23:20,686 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:25 [2018-09-19 16:23:20,776 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2018-09-19 16:23:20,783 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 4 [2018-09-19 16:23:20,783 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:23:20,789 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:23:20,808 INFO L267 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2018-09-19 16:23:20,809 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 5 variables, input treesize:34, output treesize:19 [2018-09-19 16:23:21,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:23:21,455 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:23:21,469 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:23:21,469 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:23:21,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:23:21,470 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:23:21,470 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:23:21,470 INFO L87 Difference]: Start difference. First operand 342 states and 373 transitions. Second operand 11 states. [2018-09-19 16:23:22,163 WARN L178 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:23:22,674 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-19 16:23:24,791 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown