java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 16:18:31,374 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 16:18:31,376 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 16:18:31,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 16:18:31,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 16:18:31,390 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 16:18:31,391 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 16:18:31,393 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 16:18:31,395 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 16:18:31,396 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 16:18:31,397 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 16:18:31,398 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 16:18:31,399 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 16:18:31,400 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 16:18:31,401 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 16:18:31,402 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 16:18:31,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 16:18:31,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 16:18:31,407 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 16:18:31,409 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 16:18:31,410 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 16:18:31,411 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 16:18:31,414 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-19 16:18:31,415 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-19 16:18:31,415 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-19 16:18:31,416 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-19 16:18:31,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-19 16:18:31,418 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-19 16:18:31,419 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-19 16:18:31,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-19 16:18:31,421 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-19 16:18:31,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-19 16:18:31,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-19 16:18:31,422 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-19 16:18:31,424 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-19 16:18:31,424 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-19 16:18:31,425 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 16:18:31,447 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 16:18:31,447 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 16:18:31,448 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 16:18:31,449 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 16:18:31,449 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 16:18:31,453 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 16:18:31,453 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 16:18:31,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 16:18:31,453 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 16:18:31,454 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 16:18:31,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 16:18:31,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 16:18:31,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 16:18:31,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 16:18:31,455 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 16:18:31,455 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 16:18:31,455 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 16:18:31,455 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 16:18:31,455 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 16:18:31,457 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 16:18:31,457 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 16:18:31,457 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 16:18:31,457 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 16:18:31,458 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 16:18:31,458 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 16:18:31,458 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 16:18:31,458 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 16:18:31,458 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 16:18:31,459 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 16:18:31,459 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 16:18:31,459 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 16:18:31,460 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 16:18:31,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 16:18:31,536 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 16:18:31,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 16:18:31,541 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 16:18:31,542 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 16:18:31,543 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c [2018-09-19 16:18:31,892 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4bdc193/be6f62837e6b4e78958a82792764ff26/FLAG05632c58f [2018-09-19 16:18:32,147 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 16:18:32,148 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/double_req_bl_1122b_true-unreach-call.c [2018-09-19 16:18:32,162 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4bdc193/be6f62837e6b4e78958a82792764ff26/FLAG05632c58f [2018-09-19 16:18:32,186 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd4bdc193/be6f62837e6b4e78958a82792764ff26 [2018-09-19 16:18:32,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 16:18:32,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 16:18:32,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 16:18:32,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 16:18:32,219 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 16:18:32,220 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732f910c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32, skipping insertion in model container [2018-09-19 16:18:32,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,237 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 16:18:32,606 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:18:32,630 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 16:18:32,687 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 16:18:32,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32 WrapperNode [2018-09-19 16:18:32,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 16:18:32,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 16:18:32,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 16:18:32,739 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 16:18:32,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (1/1) ... [2018-09-19 16:18:32,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 16:18:32,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 16:18:32,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 16:18:32,808 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 16:18:32,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (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 16:18:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 16:18:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 16:18:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2018-09-19 16:18:32,973 INFO L138 BoogieDeclarations]: Found implementation of procedure fmod_double [2018-09-19 16:18:32,974 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 16:18:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 16:18:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 16:18:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2018-09-19 16:18:32,974 INFO L130 BoogieDeclarations]: Found specification of procedure fmod_double [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-09-19 16:18:32,975 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 16:18:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 16:18:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 16:18:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-09-19 16:18:32,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-19 16:18:33,459 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:18:33,482 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:18:33,504 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:18:33,587 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:18:33,606 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:18:34,149 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-19 16:18:37,058 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 16:18:37,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:18:37 BoogieIcfgContainer [2018-09-19 16:18:37,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 16:18:37,060 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 16:18:37,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 16:18:37,063 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 16:18:37,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 04:18:32" (1/3) ... [2018-09-19 16:18:37,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe7554c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:18:37, skipping insertion in model container [2018-09-19 16:18:37,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 04:18:32" (2/3) ... [2018-09-19 16:18:37,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fe7554c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 04:18:37, skipping insertion in model container [2018-09-19 16:18:37,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 04:18:37" (3/3) ... [2018-09-19 16:18:37,067 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122b_true-unreach-call.c [2018-09-19 16:18:37,078 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 16:18:37,087 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 16:18:37,139 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 16:18:37,140 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 16:18:37,140 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 16:18:37,140 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 16:18:37,140 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 16:18:37,140 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 16:18:37,141 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 16:18:37,141 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 16:18:37,141 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 16:18:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states. [2018-09-19 16:18:37,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-19 16:18:37,170 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:37,171 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 16:18:37,174 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:37,179 INFO L82 PathProgramCache]: Analyzing trace with hash -370038965, now seen corresponding path program 1 times [2018-09-19 16:18:37,184 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:37,185 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) [2018-09-19 16:18:37,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 16:18:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:38,234 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:38,253 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 16:18:38,253 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:18:38,277 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:18:38,277 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-19 16:18:38,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-19 16:18:38,296 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-19 16:18:38,296 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-19 16:18:38,299 INFO L87 Difference]: Start difference. First operand 117 states. Second operand 2 states. [2018-09-19 16:18:38,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 16:18:38,336 INFO L93 Difference]: Finished difference Result 226 states and 308 transitions. [2018-09-19 16:18:38,336 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-19 16:18:38,338 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-19 16:18:38,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 16:18:38,351 INFO L225 Difference]: With dead ends: 226 [2018-09-19 16:18:38,351 INFO L226 Difference]: Without dead ends: 113 [2018-09-19 16:18:38,355 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 16:18:38,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2018-09-19 16:18:38,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2018-09-19 16:18:38,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2018-09-19 16:18:38,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 139 transitions. [2018-09-19 16:18:38,409 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 139 transitions. Word has length 21 [2018-09-19 16:18:38,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 16:18:38,409 INFO L480 AbstractCegarLoop]: Abstraction has 113 states and 139 transitions. [2018-09-19 16:18:38,410 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-19 16:18:38,410 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 139 transitions. [2018-09-19 16:18:38,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-09-19 16:18:38,412 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 16:18:38,412 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] [2018-09-19 16:18:38,413 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 16:18:38,413 INFO L82 PathProgramCache]: Analyzing trace with hash 1914081903, now seen corresponding path program 1 times [2018-09-19 16:18:38,414 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 16:18:38,415 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 16:18:38,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 16:18:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 16:18:39,529 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 16:18:42,008 WARN L797 $PredicateComparison]: unable to prove that (exists ((fmod_double_~y (_ FloatingPoint 11 53))) (= (let ((.cse0 (fp.mul RNE |c_fmod_double_#in~x| fmod_double_~y))) (fp.div RNE .cse0 .cse0)) |c_fmod_double_#res|)) is different from false [2018-09-19 16:18:57,918 WARN L178 SmtUtils]: Spent 3.77 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-19 16:19:14,634 WARN L178 SmtUtils]: Spent 3.64 s on a formula simplification that was a NOOP. DAG size: 12 [2018-09-19 16:19:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 16:19:33,005 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 16:19:33,035 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 16:19:33,035 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-19 16:19:33,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-19 16:19:33,037 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-19 16:19:33,038 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=36, Unknown=9, NotChecked=12, Total=72 [2018-09-19 16:19:33,038 INFO L87 Difference]: Start difference. First operand 113 states and 139 transitions. Second operand 9 states. [2018-09-19 16:21:05,530 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:102) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.pop(ManagedScript.java:130) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertPostcondition(IncrementalHoareTripleChecker.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:254) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:269) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.ProtectiveHoareTripleChecker.releaseLock(ProtectiveHoareTripleChecker.java:94) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.EfficientHoareTripleChecker.releaseLock(EfficientHoareTripleChecker.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:202) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:690) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:603) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:472) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: java.io.IOException: Broken pipe at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:326) at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82) at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:297) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.io.BufferedWriter.flush(BufferedWriter.java:254) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:120) ... 28 more [2018-09-19 16:21:05,537 INFO L168 Benchmark]: Toolchain (without parser) took 153336.79 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -639.9 MB). Peak memory consumption was 79.9 MB. Max. memory is 7.1 GB. [2018-09-19 16:21:05,539 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 16:21:05,539 INFO L168 Benchmark]: CACSL2BoogieTranslator took 527.94 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 16:21:05,541 INFO L168 Benchmark]: Boogie Preprocessor took 71.24 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 16:21:05,542 INFO L168 Benchmark]: RCFGBuilder took 4250.74 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -738.7 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. [2018-09-19 16:21:05,543 INFO L168 Benchmark]: TraceAbstraction took 148476.68 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. [2018-09-19 16:21:05,551 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 527.94 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 71.24 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. * RCFGBuilder took 4250.74 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 719.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -738.7 MB). Peak memory consumption was 19.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 148476.68 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 77.6 MB). Peak memory consumption was 77.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:123) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...