java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0520_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:23:24,201 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:23:24,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:23:24,223 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:23:24,223 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:23:24,226 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:23:24,228 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:23:24,230 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:23:24,233 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:23:24,235 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:23:24,236 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:23:24,236 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:23:24,239 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:23:24,240 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:23:24,241 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:23:24,244 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:23:24,245 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:23:24,248 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:23:24,259 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:23:24,263 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:23:24,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:23:24,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:23:24,269 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:23:24,269 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:23:24,270 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:23:24,273 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:23:24,274 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:23:24,275 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:23:24,276 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:23:24,278 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:23:24,278 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:23:24,279 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:23:24,279 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:23:24,279 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:23:24,281 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:23:24,282 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:23:24,282 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 16:23:24,309 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:23:24,310 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:23:24,311 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:23:24,311 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:23:24,311 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:23:24,312 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:23:24,312 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:23:24,312 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:23:24,312 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:23:24,312 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:23:24,313 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:23:24,313 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:23:24,313 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:23:24,313 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:23:24,313 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:23:24,314 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:23:24,314 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:23:24,314 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:23:24,314 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:23:24,314 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:23:24,314 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:23:24,315 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:23:24,315 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:23:24,315 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:23:24,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:23:24,315 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:23:24,316 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:23:24,316 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:23:24,316 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:23:24,316 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:23:24,316 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:23:24,317 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:23:24,360 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:23:24,375 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:23:24,379 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:23:24,381 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:23:24,381 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:23:24,382 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0520_true-unreach-call.c [2018-09-19 16:23:24,756 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fde1eccc/9c620fe5eb6146ffbd5fbde226cba8ff/FLAG006f4dc4c [2018-09-19 16:23:24,971 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:23:24,972 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0520_true-unreach-call.c [2018-09-19 16:23:24,985 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fde1eccc/9c620fe5eb6146ffbd5fbde226cba8ff/FLAG006f4dc4c [2018-09-19 16:23:25,001 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9fde1eccc/9c620fe5eb6146ffbd5fbde226cba8ff [2018-09-19 16:23:25,010 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:23:25,014 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:23:25,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:23:25,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:23:25,023 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:23:25,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:25,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68af5a8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25, skipping insertion in model container [2018-09-19 16:23:25,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:25,041 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:23:25,564 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:23:25,658 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:23:25,848 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:23:25,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25 WrapperNode [2018-09-19 16:23:25,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:23:25,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:23:25,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:23:25,984 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:23:26,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,161 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (1/1) ... [2018-09-19 16:23:26,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:23:26,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:23:26,289 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:23:26,289 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:23:26,290 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (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 16:23:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:23:26,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:23:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_float [2018-09-19 16:23:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-09-19 16:23:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-19 16:23:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-09-19 16:23:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure scalbn_float [2018-09-19 16:23:26,374 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-09-19 16:23:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_rem_pio2f [2018-09-19 16:23:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_rem_pio2f [2018-09-19 16:23:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __kernel_tanf [2018-09-19 16:23:26,375 INFO L138 BoogieDeclarations]: Found implementation of procedure tan_float [2018-09-19 16:23:26,377 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:23:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:23:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:23:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure floor_float [2018-09-19 16:23:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:23:26,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:23:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:23:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:23:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:23:26,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:23:26,381 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-09-19 16:23:26,381 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-19 16:23:26,381 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-09-19 16:23:26,381 INFO L130 BoogieDeclarations]: Found specification of procedure scalbn_float [2018-09-19 16:23:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-09-19 16:23:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_rem_pio2f [2018-09-19 16:23:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_rem_pio2f [2018-09-19 16:23:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure __kernel_tanf [2018-09-19 16:23:26,382 INFO L130 BoogieDeclarations]: Found specification of procedure tan_float [2018-09-19 16:23:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:23:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:23:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:23:26,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:23:26,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:23:35,361 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:35,480 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:35,607 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,077 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,081 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,103 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,129 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,146 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,158 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,303 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,310 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,355 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:39,374 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:40,288 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:40,319 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:40,349 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:40,375 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:47,882 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:47,889 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:47,997 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:48,002 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:48,013 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:48,021 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:51,598 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:51,632 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:52,205 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:52,254 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:52,857 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,057 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,118 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,141 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,234 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,240 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,249 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,253 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,323 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,415 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,484 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,582 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,663 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,783 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,870 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:53,960 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:55,488 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:55,527 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:55,534 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:55,557 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:57,085 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:57,093 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:57,100 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:59,193 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:59,284 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:59,292 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:59,301 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:59,332 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:23:59,357 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:24:00,057 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:24:00,065 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:24:00,202 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:24:00,226 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:24:00,243 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:24:00,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:24:00 BoogieIcfgContainer [2018-09-19 16:24:00,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:24:00,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:24:00,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:24:00,248 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:24:00,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:23:25" (1/3) ... [2018-09-19 16:24:00,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bb8585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:24:00, skipping insertion in model container [2018-09-19 16:24:00,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:23:25" (2/3) ... [2018-09-19 16:24:00,250 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14bb8585 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:24:00, skipping insertion in model container [2018-09-19 16:24:00,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:24:00" (3/3) ... [2018-09-19 16:24:00,252 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0520_true-unreach-call.c [2018-09-19 16:24:00,263 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:24:00,273 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:24:00,353 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:24:00,354 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:24:00,354 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:24:00,354 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:24:00,354 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:24:00,354 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:24:00,355 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:24:00,355 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:24:00,355 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:24:00,397 INFO L276 IsEmpty]: Start isEmpty. Operand 745 states. [2018-09-19 16:24:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2018-09-19 16:24:00,429 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:00,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:00,438 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:00,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1069402802, now seen corresponding path program 1 times [2018-09-19 16:24:00,458 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:00,459 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 16:24:00,474 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:00,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:00,855 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:00,971 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 16:24:00,972 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:00,989 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:00,990 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:24:00,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:24:01,007 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:24:01,008 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:24:01,011 INFO L87 Difference]: Start difference. First operand 745 states. Second operand 2 states. [2018-09-19 16:24:01,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:01,103 INFO L93 Difference]: Finished difference Result 1280 states and 1604 transitions. [2018-09-19 16:24:01,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:24:01,105 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 225 [2018-09-19 16:24:01,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:01,132 INFO L225 Difference]: With dead ends: 1280 [2018-09-19 16:24:01,133 INFO L226 Difference]: Without dead ends: 741 [2018-09-19 16:24:01,143 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 224 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 16:24:01,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-09-19 16:24:01,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741. [2018-09-19 16:24:01,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 741 states. [2018-09-19 16:24:01,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 832 transitions. [2018-09-19 16:24:01,258 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 832 transitions. Word has length 225 [2018-09-19 16:24:01,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:01,260 INFO L480 AbstractCegarLoop]: Abstraction has 741 states and 832 transitions. [2018-09-19 16:24:01,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:24:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 832 transitions. [2018-09-19 16:24:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2018-09-19 16:24:01,265 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:01,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:01,266 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:01,267 INFO L82 PathProgramCache]: Analyzing trace with hash 54165777, now seen corresponding path program 1 times [2018-09-19 16:24:01,270 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:01,270 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) [2018-09-19 16:24:01,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 16:24:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:01,597 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:02,313 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 16:24:02,313 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:02,325 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:02,326 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:24:02,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:24:02,328 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:24:02,329 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:24:02,329 INFO L87 Difference]: Start difference. First operand 741 states and 832 transitions. Second operand 9 states. [2018-09-19 16:24:02,857 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-19 16:24:03,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:03,692 INFO L93 Difference]: Finished difference Result 748 states and 839 transitions. [2018-09-19 16:24:03,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-19 16:24:03,696 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 234 [2018-09-19 16:24:03,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:03,703 INFO L225 Difference]: With dead ends: 748 [2018-09-19 16:24:03,703 INFO L226 Difference]: Without dead ends: 739 [2018-09-19 16:24:03,704 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-19 16:24:03,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2018-09-19 16:24:03,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 739. [2018-09-19 16:24:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2018-09-19 16:24:03,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 829 transitions. [2018-09-19 16:24:03,744 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 829 transitions. Word has length 234 [2018-09-19 16:24:03,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:03,745 INFO L480 AbstractCegarLoop]: Abstraction has 739 states and 829 transitions. [2018-09-19 16:24:03,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:24:03,746 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 829 transitions. [2018-09-19 16:24:03,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-09-19 16:24:03,752 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:03,753 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:03,753 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:03,754 INFO L82 PathProgramCache]: Analyzing trace with hash -91224987, now seen corresponding path program 1 times [2018-09-19 16:24:03,756 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:03,756 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 16:24:03,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:05,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:06,142 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:06,161 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:06,161 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:06,189 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:06,253 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:06,253 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:06,331 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:06,338 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:06,339 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:06,345 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:06,349 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:06,349 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:06,620 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 16:24:06,620 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:06,656 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:06,657 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:24:06,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:24:06,658 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:24:06,658 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-19 16:24:06,658 INFO L87 Difference]: Start difference. First operand 739 states and 829 transitions. Second operand 9 states. [2018-09-19 16:24:11,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:11,939 INFO L93 Difference]: Finished difference Result 749 states and 838 transitions. [2018-09-19 16:24:11,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-19 16:24:11,946 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 253 [2018-09-19 16:24:11,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:11,950 INFO L225 Difference]: With dead ends: 749 [2018-09-19 16:24:11,951 INFO L226 Difference]: Without dead ends: 735 [2018-09-19 16:24:11,952 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-09-19 16:24:11,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2018-09-19 16:24:11,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 735. [2018-09-19 16:24:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 735 states. [2018-09-19 16:24:11,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 823 transitions. [2018-09-19 16:24:11,974 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 823 transitions. Word has length 253 [2018-09-19 16:24:11,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:11,975 INFO L480 AbstractCegarLoop]: Abstraction has 735 states and 823 transitions. [2018-09-19 16:24:11,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-19 16:24:11,975 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 823 transitions. [2018-09-19 16:24:11,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2018-09-19 16:24:11,980 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:11,980 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:11,981 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:11,981 INFO L82 PathProgramCache]: Analyzing trace with hash 2147089199, now seen corresponding path program 1 times [2018-09-19 16:24:11,983 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:11,983 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 16:24:11,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:14,183 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:14,357 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:14,373 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:14,374 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:14,377 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:14,389 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:14,389 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:14,414 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:14,436 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:14,437 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:14,455 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:14,458 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:14,458 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:14,942 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 16:24:14,943 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:14,983 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:14,984 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-09-19 16:24:14,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-19 16:24:14,984 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-19 16:24:14,985 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2018-09-19 16:24:14,985 INFO L87 Difference]: Start difference. First operand 735 states and 823 transitions. Second operand 11 states. [2018-09-19 16:24:23,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:24:23,468 INFO L93 Difference]: Finished difference Result 754 states and 842 transitions. [2018-09-19 16:24:23,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-19 16:24:23,472 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 280 [2018-09-19 16:24:23,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:24:23,477 INFO L225 Difference]: With dead ends: 754 [2018-09-19 16:24:23,477 INFO L226 Difference]: Without dead ends: 730 [2018-09-19 16:24:23,479 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2018-09-19 16:24:23,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 730 states. [2018-09-19 16:24:23,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 730 to 730. [2018-09-19 16:24:23,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 730 states. [2018-09-19 16:24:23,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 817 transitions. [2018-09-19 16:24:23,519 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 817 transitions. Word has length 280 [2018-09-19 16:24:23,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:24:23,520 INFO L480 AbstractCegarLoop]: Abstraction has 730 states and 817 transitions. [2018-09-19 16:24:23,520 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-19 16:24:23,520 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 817 transitions. [2018-09-19 16:24:23,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-09-19 16:24:23,525 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:24:23,526 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:23,526 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:24:23,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1477406000, now seen corresponding path program 1 times [2018-09-19 16:24:23,528 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:24:23,528 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 16:24:23,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:24:25,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:24:25,955 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:24:26,111 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:26,158 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:26,159 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:26,199 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:26,339 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:26,339 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:24 [2018-09-19 16:24:26,944 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 46 treesize of output 34 [2018-09-19 16:24:26,985 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2018-09-19 16:24:26,986 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 16:24:27,106 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 16:24:27,222 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:24:27,223 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:22 [2018-09-19 16:24:28,047 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:24:28,051 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:24:28,052 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:28,056 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:28,068 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:28,069 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:24:28,279 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:24:28,282 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-19 16:24:28,283 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:24:28,285 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:28,289 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:24:28,289 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:24:30,669 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 16:24:30,669 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:24:30,716 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:24:30,717 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-09-19 16:24:30,717 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-19 16:24:30,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-19 16:24:30,718 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=180, Unknown=3, NotChecked=0, Total=210 [2018-09-19 16:24:30,718 INFO L87 Difference]: Start difference. First operand 730 states and 817 transitions. Second operand 15 states. [2018-09-19 16:24:50,744 WARN L178 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-19 16:25:01,307 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:25:02,668 WARN L178 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-19 16:25:43,996 WARN L178 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-09-19 16:25:47,277 WARN L178 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-19 16:25:48,750 WARN L178 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:26:08,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:26:08,459 INFO L93 Difference]: Finished difference Result 855 states and 951 transitions. [2018-09-19 16:26:08,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-09-19 16:26:08,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 283 [2018-09-19 16:26:08,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:26:08,472 INFO L225 Difference]: With dead ends: 855 [2018-09-19 16:26:08,472 INFO L226 Difference]: Without dead ends: 787 [2018-09-19 16:26:08,473 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 269 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=107, Invalid=700, Unknown=5, NotChecked=0, Total=812 [2018-09-19 16:26:08,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2018-09-19 16:26:08,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 783. [2018-09-19 16:26:08,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 783 states. [2018-09-19 16:26:08,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 783 states to 783 states and 872 transitions. [2018-09-19 16:26:08,508 INFO L78 Accepts]: Start accepts. Automaton has 783 states and 872 transitions. Word has length 283 [2018-09-19 16:26:08,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:26:08,509 INFO L480 AbstractCegarLoop]: Abstraction has 783 states and 872 transitions. [2018-09-19 16:26:08,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-19 16:26:08,509 INFO L276 IsEmpty]: Start isEmpty. Operand 783 states and 872 transitions. [2018-09-19 16:26:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2018-09-19 16:26:08,514 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:26:08,514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:26:08,514 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:26:08,515 INFO L82 PathProgramCache]: Analyzing trace with hash 685483947, now seen corresponding path program 1 times [2018-09-19 16:26:08,516 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:26:08,516 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 16:26:08,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:26:10,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:26:10,972 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:26:11,219 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:26:11,260 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-19 16:26:11,260 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:26:11,301 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:26:11,420 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:26:11,421 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:24, output treesize:24 [2018-09-19 16:26:12,025 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 46 treesize of output 34 [2018-09-19 16:26:12,087 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 22 [2018-09-19 16:26:12,088 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 16:26:12,334 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 16:26:12,512 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-09-19 16:26:12,512 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:46, output treesize:22 [2018-09-19 16:26:21,444 WARN L178 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-19 16:26:23,569 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24))) (= (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE c_~pio4_ktan~0 (fp.neg |c___kernel_tanf_#in~x|)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1))))) |c___kernel_tanf_#res|)) is different from false [2018-09-19 16:26:25,656 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24))) (= (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE c_~pio4_ktan~0 (fp.neg |c___kernel_tanf_#in~x|)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1))))) |c___kernel_tanf_#res|)) is different from true [2018-09-19 16:26:27,778 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (= (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE c_~pio4_ktan~0 (fp.neg .cse0)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1))))) |c_tan_float_#t~ret106|) (= .cse0 (fp.sub RNE |c_tan_float_#in~x| |c_tan_float_#in~x|))))) is different from false [2018-09-19 16:26:29,873 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (= (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE c_~pio4_ktan~0 (fp.neg .cse0)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1))))) |c_tan_float_#t~ret106|) (= .cse0 (fp.sub RNE |c_tan_float_#in~x| |c_tan_float_#in~x|))))) is different from true [2018-09-19 16:26:31,989 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (= |c_tan_float_#res| (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE c_~pio4_ktan~0 (fp.neg .cse0)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1)))))) (= .cse0 (fp.sub RNE |c_tan_float_#in~x| |c_tan_float_#in~x|))))) is different from false [2018-09-19 16:26:34,101 WARN L819 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (= |c_tan_float_#res| (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE c_~pio4_ktan~0 (fp.neg .cse0)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1)))))) (= .cse0 (fp.sub RNE |c_tan_float_#in~x| |c_tan_float_#in~x|))))) is different from true [2018-09-19 16:26:36,252 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24)) (~pio4_ktan~0 (_ FloatingPoint 8 24))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (= |c_main_#t~ret107| (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE ~pio4_ktan~0 (fp.neg .cse0)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1)))))) (= .cse0 (let ((.cse1 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub RNE .cse1 .cse1)))))) is different from false [2018-09-19 16:26:38,405 WARN L797 $PredicateComparison]: unable to prove that (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24)) (~pio4_ktan~0 (_ FloatingPoint 8 24))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (= c_main_~res~0 (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE ~pio4_ktan~0 (fp.neg .cse0)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1)))))) (= .cse0 (let ((.cse1 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub RNE .cse1 .cse1)))))) is different from false [2018-09-19 16:26:46,459 WARN L797 $PredicateComparison]: unable to prove that (and (= (_ bv1 32) |c_main_#t~ret108|) (exists ((v_prenex_1 (_ FloatingPoint 8 24)) (__kernel_tanf_~hx~2 (_ BitVec 32)) (__kernel_tanf_~w~1 (_ FloatingPoint 8 24)) (__kernel_tanf_~v~0 (_ FloatingPoint 8 24)) (v_arrayElimCell_12 (_ BitVec 32)) (__kernel_tanf_~r~1 (_ FloatingPoint 8 24)) (~pio4_ktan~0 (_ FloatingPoint 8 24))) (let ((.cse1 (fp ((_ extract 31 31) v_arrayElimCell_12) ((_ extract 30 23) v_arrayElimCell_12) ((_ extract 22 0) v_arrayElimCell_12)))) (and (not (let ((.cse0 (fp.mul RNE ((_ to_fp 8 24) RNE (bvsub (_ bv1 32) (bvand (bvashr __kernel_tanf_~hx~2 (_ bv30 32)) (_ bv2 32)))) (fp.sub RNE __kernel_tanf_~v~0 (fp.mul RNE ((_ to_fp 8 24) RNE ((_ to_fp 11 53) RNE 2.0)) (fp.sub RNE (fp.add RNE (fp.sub RNE ~pio4_ktan~0 (fp.neg .cse1)) v_prenex_1) (fp.sub RNE (fp.div RNE (fp.mul RNE __kernel_tanf_~w~1 __kernel_tanf_~w~1) (fp.add RNE __kernel_tanf_~w~1 __kernel_tanf_~v~0)) __kernel_tanf_~r~1))))))) (fp.eq .cse0 .cse0))) (= .cse1 (let ((.cse2 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (fp.sub RNE .cse2 .cse2))))))) is different from false [2018-09-19 16:26:46,536 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 16:26:46,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:26:46,577 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:26:46,577 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2018-09-19 16:26:46,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-19 16:26:46,578 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-19 16:26:46,580 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=114, Unknown=9, NotChecked=150, Total=306 [2018-09-19 16:26:46,580 INFO L87 Difference]: Start difference. First operand 783 states and 872 transitions. Second operand 18 states. [2018-09-19 16:27:10,180 WARN L178 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-19 16:27:27,843 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-19 16:27:29,879 WARN L178 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 26 Received shutdown request... [2018-09-19 16:28:06,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:28:06,100 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-19 16:28:06,105 WARN L206 ceAbstractionStarter]: Timeout [2018-09-19 16:28:06,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:28:06 BoogieIcfgContainer [2018-09-19 16:28:06,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:28:06,106 INFO L168 Benchmark]: Toolchain (without parser) took 281095.71 ms. Allocated memory was 1.5 GB in the beginning and 2.6 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -689.0 MB). Peak memory consumption was 324.9 MB. Max. memory is 7.1 GB. [2018-09-19 16:28:06,107 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:28:06,108 INFO L168 Benchmark]: CACSL2BoogieTranslator took 967.42 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:28:06,108 INFO L168 Benchmark]: Boogie Preprocessor took 301.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:28:06,110 INFO L168 Benchmark]: RCFGBuilder took 33955.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 197.8 MB). Peak memory consumption was 197.8 MB. Max. memory is 7.1 GB. [2018-09-19 16:28:06,110 INFO L168 Benchmark]: TraceAbstraction took 245861.36 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 263.2 MB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -90.0 MB). Peak memory consumption was 173.2 MB. Max. memory is 7.1 GB. [2018-09-19 16:28:06,114 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 967.42 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 301.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -839.1 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 33955.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 197.8 MB). Peak memory consumption was 197.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 245861.36 ms. Allocated memory was 2.3 GB in the beginning and 2.6 GB in the end (delta: 263.2 MB). Free memory was 2.0 GB in the beginning and 2.1 GB in the end (delta: -90.0 MB). Peak memory consumption was 173.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 629]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 629). Cancelled while BasicCegarLoop was constructing difference of abstraction (783states) and FLOYD_HOARE automaton (currently 12 states, 18 states before enhancement), while ReachableStatesComputation was computing reachable states (410 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 759 locations, 1 error locations. TIMEOUT Result, 245.7s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 192.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4410 SDtfs, 842 SDslu, 30239 SDs, 0 SdLazy, 3449 SolverSat, 35 SolverUnsat, 37 SolverUnknown, 0 SolverNotchecked, 169.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1590 GetRequests, 1502 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 45.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=783occurred in iteration=5, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 8.5s SatisfiabilityAnalysisTime, 43.5s InterpolantComputationTime, 1560 NumberOfCodeBlocks, 1560 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 1554 ConstructedInterpolants, 51 QuantifiedInterpolants, 1136899 SizeOfPredicates, 55 NumberOfNonLiveVariables, 2459 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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