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_1232b_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:36:37,096 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:36:37,100 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:36:37,116 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:36:37,117 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:36:37,119 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:36:37,120 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:36:37,122 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:36:37,124 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:36:37,125 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:36:37,126 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:36:37,126 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:36:37,127 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:36:37,128 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:36:37,129 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:36:37,130 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:36:37,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:36:37,133 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:36:37,135 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:36:37,136 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:36:37,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:36:37,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:36:37,144 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:36:37,144 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:36:37,144 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:36:37,148 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:36:37,149 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:36:37,150 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:36:37,154 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:36:37,155 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:36:37,155 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:36:37,156 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:36:37,160 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:36:37,160 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:36:37,161 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:36:37,163 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:36:37,165 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 16:36:37,189 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:36:37,189 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:36:37,192 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:36:37,192 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:36:37,193 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:36:37,193 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:36:37,193 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:36:37,193 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:36:37,193 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:36:37,194 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:36:37,194 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:36:37,194 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:36:37,194 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:36:37,194 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:36:37,195 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:36:37,195 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:36:37,195 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:36:37,195 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:36:37,195 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:36:37,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:36:37,197 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:36:37,197 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:36:37,197 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:36:37,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:36:37,198 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:36:37,198 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:36:37,198 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:36:37,198 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:36:37,199 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:36:37,199 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:36:37,199 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:36:37,199 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:36:37,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:36:37,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:36:37,292 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:36:37,293 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:36:37,294 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:36:37,295 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_1232b_false-unreach-call.c [2018-09-19 16:36:37,688 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b71b062/b039b47bd88648a4ba99626afff79e98/FLAG94b452819 [2018-09-19 16:36:37,857 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:36:37,858 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_1232b_false-unreach-call.c [2018-09-19 16:36:37,865 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b71b062/b039b47bd88648a4ba99626afff79e98/FLAG94b452819 [2018-09-19 16:36:37,890 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5b71b062/b039b47bd88648a4ba99626afff79e98 [2018-09-19 16:36:37,900 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:36:37,904 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:36:37,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:36:37,905 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:36:37,912 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:36:37,913 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:36:37" (1/1) ... [2018-09-19 16:36:37,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65a5c5cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:37, skipping insertion in model container [2018-09-19 16:36:37,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:36:37" (1/1) ... [2018-09-19 16:36:37,929 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:36:38,167 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:36:38,187 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:36:38,204 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:36:38,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38 WrapperNode [2018-09-19 16:36:38,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:36:38,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:36:38,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:36:38,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:36:38,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,304 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (1/1) ... [2018-09-19 16:36:38,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:36:38,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:36:38,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:36:38,312 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:36:38,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (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 16:36:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:36:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:36:38,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2018-09-19 16:36:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure fmin_float [2018-09-19 16:36:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-19 16:36:38,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:36:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:36:38,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-19 16:36:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2018-09-19 16:36:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:36:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-19 16:36:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:36:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:36:38,383 INFO L130 BoogieDeclarations]: Found specification of procedure fmin_float [2018-09-19 16:36:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-19 16:36:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:36:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:36:38,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:36:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:36:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:36:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-19 16:36:38,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-19 16:36:38,872 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:38,912 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:39,060 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:39,070 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:36:39,081 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:36:39,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:36:39 BoogieIcfgContainer [2018-09-19 16:36:39,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:36:39,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:36:39,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:36:39,087 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:36:39,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:36:37" (1/3) ... [2018-09-19 16:36:39,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4bf572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:36:39, skipping insertion in model container [2018-09-19 16:36:39,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:36:38" (2/3) ... [2018-09-19 16:36:39,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d4bf572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:36:39, skipping insertion in model container [2018-09-19 16:36:39,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:36:39" (3/3) ... [2018-09-19 16:36:39,091 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232b_false-unreach-call.c [2018-09-19 16:36:39,101 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:36:39,111 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:36:39,153 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:36:39,154 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:36:39,154 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:36:39,154 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:36:39,154 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:36:39,154 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:36:39,155 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:36:39,155 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:36:39,155 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:36:39,175 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states. [2018-09-19 16:36:39,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-19 16:36:39,182 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:39,184 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] [2018-09-19 16:36:39,186 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:39,192 INFO L82 PathProgramCache]: Analyzing trace with hash 430535463, now seen corresponding path program 1 times [2018-09-19 16:36:39,197 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:39,198 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 16:36:39,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:39,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:39,296 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 16:36:39,296 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:39,312 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:39,313 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:36:39,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:36:39,332 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:36:39,333 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:36:39,335 INFO L87 Difference]: Start difference. First operand 58 states. Second operand 2 states. [2018-09-19 16:36:39,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:39,364 INFO L93 Difference]: Finished difference Result 107 states and 135 transitions. [2018-09-19 16:36:39,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:36:39,365 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-19 16:36:39,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:39,376 INFO L225 Difference]: With dead ends: 107 [2018-09-19 16:36:39,376 INFO L226 Difference]: Without dead ends: 54 [2018-09-19 16:36:39,381 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 16:36:39,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-09-19 16:36:39,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2018-09-19 16:36:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-09-19 16:36:39,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 62 transitions. [2018-09-19 16:36:39,433 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 62 transitions. Word has length 21 [2018-09-19 16:36:39,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:39,433 INFO L480 AbstractCegarLoop]: Abstraction has 54 states and 62 transitions. [2018-09-19 16:36:39,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:36:39,434 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 62 transitions. [2018-09-19 16:36:39,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-19 16:36:39,436 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:39,436 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] [2018-09-19 16:36:39,437 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:39,437 INFO L82 PathProgramCache]: Analyzing trace with hash 973147503, now seen corresponding path program 1 times [2018-09-19 16:36:39,438 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:39,438 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 16:36:39,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:39,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:39,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:39,596 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 16:36:39,597 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:39,614 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:39,614 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 16:36:39,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 16:36:39,616 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 16:36:39,616 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 16:36:39,617 INFO L87 Difference]: Start difference. First operand 54 states and 62 transitions. Second operand 4 states. [2018-09-19 16:36:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:39,700 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2018-09-19 16:36:39,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 16:36:39,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-09-19 16:36:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:39,705 INFO L225 Difference]: With dead ends: 80 [2018-09-19 16:36:39,706 INFO L226 Difference]: Without dead ends: 57 [2018-09-19 16:36:39,707 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 16:36:39,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-19 16:36:39,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-19 16:36:39,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-19 16:36:39,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 66 transitions. [2018-09-19 16:36:39,719 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 66 transitions. Word has length 30 [2018-09-19 16:36:39,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:39,720 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 66 transitions. [2018-09-19 16:36:39,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 16:36:39,720 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 66 transitions. [2018-09-19 16:36:39,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-09-19 16:36:39,722 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:39,722 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] [2018-09-19 16:36:39,723 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:39,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1744180640, now seen corresponding path program 1 times [2018-09-19 16:36:39,724 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:39,724 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) [2018-09-19 16:36:39,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-09-19 16:36:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:39,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:40,006 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-19 16:36:40,012 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 16:36:40,013 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:36:40,028 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:36:40,045 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 16:36:40,045 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:36:40,097 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 16:36:40,109 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 16:36:40,110 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:36:40,120 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:36:40,123 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 16:36:40,124 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:36:40,711 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 16:36:40,712 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:40,726 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:40,726 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:36:40,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:36:40,727 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:36:40,727 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:36:40,728 INFO L87 Difference]: Start difference. First operand 57 states and 66 transitions. Second operand 10 states. [2018-09-19 16:36:41,069 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-19 16:36:42,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:42,407 INFO L93 Difference]: Finished difference Result 84 states and 97 transitions. [2018-09-19 16:36:42,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:36:42,408 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-09-19 16:36:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:42,411 INFO L225 Difference]: With dead ends: 84 [2018-09-19 16:36:42,411 INFO L226 Difference]: Without dead ends: 56 [2018-09-19 16:36:42,412 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:36:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-09-19 16:36:42,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-09-19 16:36:42,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-09-19 16:36:42,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 63 transitions. [2018-09-19 16:36:42,421 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 63 transitions. Word has length 31 [2018-09-19 16:36:42,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:42,422 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 63 transitions. [2018-09-19 16:36:42,422 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:36:42,422 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 63 transitions. [2018-09-19 16:36:42,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-19 16:36:42,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:42,424 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 16:36:42,424 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:42,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1143554021, now seen corresponding path program 1 times [2018-09-19 16:36:42,426 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:42,426 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 16:36:42,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:42,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:42,523 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-09-19 16:36:42,523 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:42,536 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:42,536 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-19 16:36:42,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-19 16:36:42,537 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-19 16:36:42,537 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 16:36:42,538 INFO L87 Difference]: Start difference. First operand 56 states and 63 transitions. Second operand 4 states. [2018-09-19 16:36:42,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:42,574 INFO L93 Difference]: Finished difference Result 80 states and 88 transitions. [2018-09-19 16:36:42,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-19 16:36:42,575 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-09-19 16:36:42,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:42,577 INFO L225 Difference]: With dead ends: 80 [2018-09-19 16:36:42,577 INFO L226 Difference]: Without dead ends: 57 [2018-09-19 16:36:42,578 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-19 16:36:42,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-09-19 16:36:42,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-09-19 16:36:42,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-09-19 16:36:42,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 64 transitions. [2018-09-19 16:36:42,586 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 64 transitions. Word has length 46 [2018-09-19 16:36:42,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:42,587 INFO L480 AbstractCegarLoop]: Abstraction has 57 states and 64 transitions. [2018-09-19 16:36:42,587 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-19 16:36:42,587 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 64 transitions. [2018-09-19 16:36:42,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 16:36:42,588 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:42,589 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:36:42,589 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:42,589 INFO L82 PathProgramCache]: Analyzing trace with hash -113422118, now seen corresponding path program 1 times [2018-09-19 16:36:42,590 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:42,590 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 16:36:42,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:42,657 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:42,718 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 16:36:42,722 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 16:36:42,723 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:36:42,727 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:36:42,742 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 16:36:42,743 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-19 16:36:42,771 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-19 16:36:42,801 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 16:36:42,802 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-19 16:36:42,807 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-19 16:36:42,816 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 16:36:42,816 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-19 16:36:43,013 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-09-19 16:36:43,013 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:43,029 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:43,029 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-09-19 16:36:43,030 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-19 16:36:43,030 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-19 16:36:43,030 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-09-19 16:36:43,031 INFO L87 Difference]: Start difference. First operand 57 states and 64 transitions. Second operand 10 states. [2018-09-19 16:36:44,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:44,064 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2018-09-19 16:36:44,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-19 16:36:44,066 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 47 [2018-09-19 16:36:44,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:44,068 INFO L225 Difference]: With dead ends: 82 [2018-09-19 16:36:44,069 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:36:44,069 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-09-19 16:36:44,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:36:44,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:36:44,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:36:44,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 53 transitions. [2018-09-19 16:36:44,078 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 53 transitions. Word has length 47 [2018-09-19 16:36:44,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:44,079 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 53 transitions. [2018-09-19 16:36:44,079 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-19 16:36:44,079 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 53 transitions. [2018-09-19 16:36:44,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-19 16:36:44,080 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:44,081 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:36:44,081 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:44,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1826494496, now seen corresponding path program 1 times [2018-09-19 16:36:44,082 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:44,082 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) [2018-09-19 16:36:44,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-09-19 16:36:44,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:44,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-19 16:36:44,262 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:44,272 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:44,272 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-19 16:36:44,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-19 16:36:44,273 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-19 16:36:44,273 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-19 16:36:44,273 INFO L87 Difference]: Start difference. First operand 51 states and 53 transitions. Second operand 5 states. [2018-09-19 16:36:44,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:44,375 INFO L93 Difference]: Finished difference Result 75 states and 77 transitions. [2018-09-19 16:36:44,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-19 16:36:44,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 48 [2018-09-19 16:36:44,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:44,379 INFO L225 Difference]: With dead ends: 75 [2018-09-19 16:36:44,380 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:36:44,381 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-19 16:36:44,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:36:44,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:36:44,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:36:44,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2018-09-19 16:36:44,388 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 48 [2018-09-19 16:36:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:44,388 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2018-09-19 16:36:44,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-19 16:36:44,389 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2018-09-19 16:36:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-19 16:36:44,391 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:44,391 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 16:36:44,391 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:44,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1659126174, now seen corresponding path program 1 times [2018-09-19 16:36:44,392 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:44,392 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-09-19 16:36:44,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:44,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:36:44,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:36:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-09-19 16:36:44,580 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:36:44,590 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:36:44,590 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-19 16:36:44,591 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-19 16:36:44,591 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-19 16:36:44,591 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-09-19 16:36:44,592 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 8 states. [2018-09-19 16:36:44,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:36:44,857 INFO L93 Difference]: Finished difference Result 54 states and 54 transitions. [2018-09-19 16:36:44,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-19 16:36:44,858 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2018-09-19 16:36:44,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:36:44,860 INFO L225 Difference]: With dead ends: 54 [2018-09-19 16:36:44,860 INFO L226 Difference]: Without dead ends: 51 [2018-09-19 16:36:44,861 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2018-09-19 16:36:44,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-09-19 16:36:44,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-09-19 16:36:44,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-09-19 16:36:44,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2018-09-19 16:36:44,867 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 48 [2018-09-19 16:36:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:36:44,867 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2018-09-19 16:36:44,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-19 16:36:44,868 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2018-09-19 16:36:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-19 16:36:44,869 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:36:44,869 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:36:44,870 INFO L423 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:36:44,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1902635068, now seen corresponding path program 1 times [2018-09-19 16:36:44,870 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:36:44,870 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2018-09-19 16:36:44,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:36:44,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-19 16:36:45,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-19 16:36:45,112 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-19 16:36:45,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.09 04:36:45 BoogieIcfgContainer [2018-09-19 16:36:45,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-19 16:36:45,242 INFO L168 Benchmark]: Toolchain (without parser) took 7340.96 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -467.6 MB). Peak memory consumption was 260.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:45,244 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:36:45,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.29 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:45,246 INFO L168 Benchmark]: Boogie Preprocessor took 63.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-19 16:36:45,246 INFO L168 Benchmark]: RCFGBuilder took 770.68 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:45,247 INFO L168 Benchmark]: TraceAbstraction took 6157.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 282.3 MB). Peak memory consumption was 282.3 MB. Max. memory is 7.1 GB. [2018-09-19 16:36:45,252 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 342.29 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: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 63.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 770.68 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 728.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -760.4 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6157.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 282.3 MB). Peak memory consumption was 282.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 70]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L64] float x = -0.0f; [L65] float y = 0.0f; VAL [x=0.0, y=0.0] [L66] CALL, EXPR fmin_float(x, y) VAL [\old(x)=0.0, \old(y)=0.0] [L36] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0.0] [L13] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L16] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0.0, gf_u={2:0}, x=0.0] [L17] FCALL gf_u.value = (x) VAL [\old(x)=0.0, gf_u={2:0}, x=0.0] [L18] EXPR, FCALL gf_u.word VAL [\old(x)=0.0, gf_u={2:0}, gf_u.word=-2147483648, x=0.0] [L18] (w) = gf_u.word VAL [\old(x)=0.0, gf_u={2:0}, gf_u.word=-2147483648, w=2147483648, x=0.0] [L18] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=0.0, \old(x)=0.0, gf_u={2:0}, gf_u.word=-2147483648, w=2147483648, x=0.0] [L19] COND FALSE !(0) VAL [\old(x)=0.0, w=2147483648, x=0.0] [L21] COND TRUE w == 0x00000000 || w == 0x80000000 [L22] RET return 2; VAL [\old(x)=0.0, \result=2, w=2147483648, x=0.0] [L36] EXPR __fpclassify_float(x) VAL [\old(x)=0.0, \old(y)=0.0, __fpclassify_float(x)=2, x=0.0, y=0.0] [L36] COND FALSE !(__fpclassify_float(x) == 0) [L38] CALL, EXPR __fpclassify_float(y) VAL [\old(x)=0.0] [L13] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L16] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0.0, gf_u={2:0}, x=0.0] [L17] FCALL gf_u.value = (x) VAL [\old(x)=0.0, gf_u={2:0}, x=0.0] [L18] EXPR, FCALL gf_u.word VAL [\old(x)=0.0, gf_u={2:0}, gf_u.word=0, x=0.0] [L18] (w) = gf_u.word VAL [\old(x)=0.0, gf_u={2:0}, gf_u.word=0, w=0, x=0.0] [L18] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=0.0, \old(x)=0.0, gf_u={2:0}, gf_u.word=0, w=0, x=0.0] [L19] COND FALSE !(0) VAL [\old(x)=0.0, w=0, x=0.0] [L21] COND TRUE w == 0x00000000 || w == 0x80000000 [L22] RET return 2; VAL [\old(x)=0.0, \result=2, w=0, x=0.0] [L38] EXPR __fpclassify_float(y) VAL [\old(x)=0.0, \old(y)=0.0, __fpclassify_float(y)=2, x=0.0, y=0.0] [L38] COND FALSE !(__fpclassify_float(y) == 0) [L41] COND FALSE, EXPR !(x < y ? x : y) [L41] EXPR x < y ? x : y VAL [\old(x)=0.0, \old(y)=0.0, x=0.0, x < y ? x : y=0.0, y=0.0] [L41] RET return x < y ? x : y; [L66] EXPR fmin_float(x, y) VAL [fmin_float(x, y)=0.0, x=0.0, y=0.0] [L66] float res = fmin_float(x, y); [L69] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0.0, res == -0.0f && __signbit_float(res) == 1=1, x=0.0, y=0.0] [L69] COND TRUE, EXPR res == -0.0f && __signbit_float(res) == 1 VAL [res=0.0, res == -0.0f && __signbit_float(res) == 1=1, x=0.0, y=0.0] [L69] CALL, EXPR __signbit_float(res) VAL [\old(x)=0.0] [L45] __uint32_t w; VAL [\old(x)=0.0, x=0.0] [L48] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0.0, gf_u={2:0}, x=0.0] [L49] FCALL gf_u.value = (x) VAL [\old(x)=0.0, gf_u={2:0}, x=0.0] [L50] EXPR, FCALL gf_u.word VAL [\old(x)=0.0, gf_u={2:0}, gf_u.word=0, x=0.0] [L50] (w) = gf_u.word VAL [\old(x)=0.0, gf_u={2:0}, gf_u.word=0, w=0, x=0.0] [L50] FCALL (w) = gf_u.word VAL [(w) = gf_u.word=0.0, \old(x)=0.0, gf_u={2:0}, gf_u.word=0, w=0, x=0.0] [L51] COND FALSE !(0) VAL [\old(x)=0.0, w=0, x=0.0] [L53] RET return (w & 0x80000000) != 0; VAL [\old(x)=0.0, \result=0, w=0, x=0.0] [L69] EXPR __signbit_float(res) VAL [__signbit_float(res)=0, res=0.0, res == -0.0f && __signbit_float(res) == 1=1, x=0.0, y=0.0] [L69] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [__signbit_float(res)=0, res=0.0, res == -0.0f && __signbit_float(res) == 1=0, x=0.0, y=0.0] [L69] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L70] __VERIFIER_error() VAL [res=0.0, x=0.0, y=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 58 locations, 1 error locations. UNSAFE Result, 6.0s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 3.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 122 SDslu, 1261 SDs, 0 SdLazy, 423 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 284 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 264 ConstructedInterpolants, 12 QuantifiedInterpolants, 27895 SizeOfPredicates, 23 NumberOfNonLiveVariables, 599 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 56/56 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...