java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/bitvector/soft_float_1-2.c.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-07 12:53:47,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-07 12:53:47,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-07 12:53:47,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-07 12:53:47,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-07 12:53:47,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-07 12:53:47,114 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-07 12:53:47,124 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-07 12:53:47,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-07 12:53:47,128 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-07 12:53:47,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-07 12:53:47,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-07 12:53:47,131 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-07 12:53:47,132 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-07 12:53:47,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-07 12:53:47,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-07 12:53:47,134 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-07 12:53:47,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-07 12:53:47,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-07 12:53:47,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-07 12:53:47,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-07 12:53:47,144 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-07 12:53:47,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-07 12:53:47,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-07 12:53:47,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-07 12:53:47,151 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-07 12:53:47,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-07 12:53:47,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-07 12:53:47,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-07 12:53:47,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-07 12:53:47,155 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-07 12:53:47,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-07 12:53:47,156 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-07 12:53:47,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-07 12:53:47,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-07 12:53:47,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-07 12:53:47,158 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-07 12:53:47,182 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-07 12:53:47,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-07 12:53:47,183 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-07 12:53:47,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-07 12:53:47,184 INFO L138 SettingsManager]: * Use SBE=true [2019-09-07 12:53:47,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-07 12:53:47,185 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-07 12:53:47,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-07 12:53:47,185 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-07 12:53:47,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-07 12:53:47,186 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-07 12:53:47,187 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-07 12:53:47,187 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-07 12:53:47,187 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-07 12:53:47,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-07 12:53:47,188 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-07 12:53:47,188 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-07 12:53:47,188 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-07 12:53:47,188 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-07 12:53:47,189 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-07 12:53:47,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-07 12:53:47,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-07 12:53:47,189 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-07 12:53:47,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-07 12:53:47,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-07 12:53:47,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-07 12:53:47,190 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-07 12:53:47,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-07 12:53:47,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-07 12:53:47,231 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-07 12:53:47,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-07 12:53:47,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-07 12:53:47,248 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-07 12:53:47,249 INFO L275 PluginConnector]: CDTParser initialized [2019-09-07 12:53:47,249 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/soft_float_1-2.c.cil.c [2019-09-07 12:53:47,319 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812dd3978/2516a5904bdc476680fb86bfd7eed7ad/FLAGf44c5cab7 [2019-09-07 12:53:47,835 INFO L306 CDTParser]: Found 1 translation units. [2019-09-07 12:53:47,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/bitvector/soft_float_1-2.c.cil.c [2019-09-07 12:53:47,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812dd3978/2516a5904bdc476680fb86bfd7eed7ad/FLAGf44c5cab7 [2019-09-07 12:53:48,159 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/812dd3978/2516a5904bdc476680fb86bfd7eed7ad [2019-09-07 12:53:48,170 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-07 12:53:48,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-07 12:53:48,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-07 12:53:48,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-07 12:53:48,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-07 12:53:48,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,180 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74af2c69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48, skipping insertion in model container [2019-09-07 12:53:48,180 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,187 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-07 12:53:48,227 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-07 12:53:48,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 12:53:48,516 INFO L188 MainTranslator]: Completed pre-run [2019-09-07 12:53:48,570 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-07 12:53:48,586 INFO L192 MainTranslator]: Completed translation [2019-09-07 12:53:48,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48 WrapperNode [2019-09-07 12:53:48,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-07 12:53:48,587 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-07 12:53:48,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-07 12:53:48,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-07 12:53:48,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,607 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,618 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,630 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (1/1) ... [2019-09-07 12:53:48,634 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-07 12:53:48,634 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-07 12:53:48,635 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-07 12:53:48,635 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-07 12:53:48,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (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 [2019-09-07 12:53:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-07 12:53:48,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-07 12:53:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-07 12:53:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2019-09-07 12:53:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure addflt [2019-09-07 12:53:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure mulflt [2019-09-07 12:53:48,699 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-07 12:53:48,699 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-07 12:53:48,700 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-07 12:53:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-07 12:53:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-07 12:53:48,702 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-07 12:53:48,703 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2019-09-07 12:53:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure addflt [2019-09-07 12:53:48,704 INFO L130 BoogieDeclarations]: Found specification of procedure mulflt [2019-09-07 12:53:48,705 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-07 12:53:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-07 12:53:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-07 12:53:49,237 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-07 12:53:49,238 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-07 12:53:49,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:53:49 BoogieIcfgContainer [2019-09-07 12:53:49,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-07 12:53:49,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-07 12:53:49,240 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-07 12:53:49,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-07 12:53:49,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 12:53:48" (1/3) ... [2019-09-07 12:53:49,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d56166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:53:49, skipping insertion in model container [2019-09-07 12:53:49,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 12:53:48" (2/3) ... [2019-09-07 12:53:49,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56d56166 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 12:53:49, skipping insertion in model container [2019-09-07 12:53:49,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 12:53:49" (3/3) ... [2019-09-07 12:53:49,247 INFO L109 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2019-09-07 12:53:49,257 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-07 12:53:49,265 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-07 12:53:49,281 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-07 12:53:49,312 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-07 12:53:49,313 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-07 12:53:49,313 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-07 12:53:49,313 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-07 12:53:49,313 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-07 12:53:49,314 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-07 12:53:49,314 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-07 12:53:49,314 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-07 12:53:49,314 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-07 12:53:49,333 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states. [2019-09-07 12:53:49,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-09-07 12:53:49,340 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:49,340 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 12:53:49,342 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:49,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1749181333, now seen corresponding path program 1 times [2019-09-07 12:53:49,348 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:49,349 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:49,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:49,392 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:49,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:49,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:49,737 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-07 12:53:49,739 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 12:53:49,740 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 12:53:49,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:49,806 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-07 12:53:49,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 12:53:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-07 12:53:49,940 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 12:53:49,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 12 [2019-09-07 12:53:49,947 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-07 12:53:49,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-07 12:53:49,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-09-07 12:53:49,966 INFO L87 Difference]: Start difference. First operand 82 states. Second operand 12 states. [2019-09-07 12:53:50,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:50,535 INFO L93 Difference]: Finished difference Result 220 states and 359 transitions. [2019-09-07 12:53:50,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-07 12:53:50,537 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 36 [2019-09-07 12:53:50,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:50,551 INFO L225 Difference]: With dead ends: 220 [2019-09-07 12:53:50,551 INFO L226 Difference]: Without dead ends: 141 [2019-09-07 12:53:50,555 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2019-09-07 12:53:50,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2019-09-07 12:53:50,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 118. [2019-09-07 12:53:50,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-07 12:53:50,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 174 transitions. [2019-09-07 12:53:50,616 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 174 transitions. Word has length 36 [2019-09-07 12:53:50,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:50,617 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 174 transitions. [2019-09-07 12:53:50,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-07 12:53:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 174 transitions. [2019-09-07 12:53:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-09-07 12:53:50,626 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:50,626 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-07 12:53:50,626 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:50,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:50,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1691923031, now seen corresponding path program 1 times [2019-09-07 12:53:50,627 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:50,627 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:50,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:50,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:50,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:50,821 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-07 12:53:50,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 12:53:50,822 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-07 12:53:50,823 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-07 12:53:50,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-07 12:53:50,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-07 12:53:50,824 INFO L87 Difference]: Start difference. First operand 118 states and 174 transitions. Second operand 8 states. [2019-09-07 12:53:51,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:51,021 INFO L93 Difference]: Finished difference Result 255 states and 383 transitions. [2019-09-07 12:53:51,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-07 12:53:51,022 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2019-09-07 12:53:51,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:51,030 INFO L225 Difference]: With dead ends: 255 [2019-09-07 12:53:51,030 INFO L226 Difference]: Without dead ends: 182 [2019-09-07 12:53:51,034 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-07 12:53:51,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2019-09-07 12:53:51,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2019-09-07 12:53:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-09-07 12:53:51,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 257 transitions. [2019-09-07 12:53:51,084 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 257 transitions. Word has length 36 [2019-09-07 12:53:51,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:51,085 INFO L475 AbstractCegarLoop]: Abstraction has 178 states and 257 transitions. [2019-09-07 12:53:51,085 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-07 12:53:51,085 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 257 transitions. [2019-09-07 12:53:51,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-07 12:53:51,087 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:51,087 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-09-07 12:53:51,088 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:51,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:51,089 INFO L82 PathProgramCache]: Analyzing trace with hash -705713894, now seen corresponding path program 1 times [2019-09-07 12:53:51,089 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:51,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:51,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:51,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:51,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:51,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:51,291 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-07 12:53:51,291 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 12:53:51,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-07 12:53:51,292 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-07 12:53:51,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-07 12:53:51,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-07 12:53:51,293 INFO L87 Difference]: Start difference. First operand 178 states and 257 transitions. Second operand 7 states. [2019-09-07 12:53:51,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:51,434 INFO L93 Difference]: Finished difference Result 304 states and 453 transitions. [2019-09-07 12:53:51,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-07 12:53:51,435 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 40 [2019-09-07 12:53:51,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:51,440 INFO L225 Difference]: With dead ends: 304 [2019-09-07 12:53:51,441 INFO L226 Difference]: Without dead ends: 233 [2019-09-07 12:53:51,442 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-07 12:53:51,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-07 12:53:51,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2019-09-07 12:53:51,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-09-07 12:53:51,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 337 transitions. [2019-09-07 12:53:51,501 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 337 transitions. Word has length 40 [2019-09-07 12:53:51,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:51,502 INFO L475 AbstractCegarLoop]: Abstraction has 230 states and 337 transitions. [2019-09-07 12:53:51,502 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-07 12:53:51,502 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 337 transitions. [2019-09-07 12:53:51,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-07 12:53:51,506 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:51,507 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-09-07 12:53:51,507 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:51,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:51,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1271405986, now seen corresponding path program 1 times [2019-09-07 12:53:51,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:51,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:51,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:51,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:51,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:51,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:51,668 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-07 12:53:51,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 12:53:51,668 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 12:53:51,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:51,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-07 12:53:51,719 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 12:53:51,776 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-07 12:53:51,781 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 12:53:51,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 9 [2019-09-07 12:53:51,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-07 12:53:51,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-07 12:53:51,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-07 12:53:51,783 INFO L87 Difference]: Start difference. First operand 230 states and 337 transitions. Second operand 9 states. [2019-09-07 12:53:51,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:51,974 INFO L93 Difference]: Finished difference Result 412 states and 609 transitions. [2019-09-07 12:53:51,975 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-07 12:53:51,975 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2019-09-07 12:53:51,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:51,978 INFO L225 Difference]: With dead ends: 412 [2019-09-07 12:53:51,978 INFO L226 Difference]: Without dead ends: 242 [2019-09-07 12:53:51,979 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2019-09-07 12:53:51,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-09-07 12:53:51,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 230. [2019-09-07 12:53:51,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-09-07 12:53:51,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 327 transitions. [2019-09-07 12:53:51,995 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 327 transitions. Word has length 40 [2019-09-07 12:53:51,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:51,996 INFO L475 AbstractCegarLoop]: Abstraction has 230 states and 327 transitions. [2019-09-07 12:53:51,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-07 12:53:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 327 transitions. [2019-09-07 12:53:51,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-07 12:53:51,998 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:51,999 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-09-07 12:53:51,999 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:51,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:51,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1973628860, now seen corresponding path program 1 times [2019-09-07 12:53:52,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:52,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:52,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:52,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:52,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:52,160 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-07 12:53:52,160 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 12:53:52,160 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-07 12:53:52,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 12:53:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:52,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-07 12:53:52,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 12:53:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-07 12:53:52,309 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-07 12:53:52,309 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 12 [2019-09-07 12:53:52,311 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-07 12:53:52,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-07 12:53:52,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2019-09-07 12:53:52,312 INFO L87 Difference]: Start difference. First operand 230 states and 327 transitions. Second operand 12 states. [2019-09-07 12:53:52,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:52,727 INFO L93 Difference]: Finished difference Result 315 states and 454 transitions. [2019-09-07 12:53:52,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-07 12:53:52,728 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 44 [2019-09-07 12:53:52,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:52,730 INFO L225 Difference]: With dead ends: 315 [2019-09-07 12:53:52,730 INFO L226 Difference]: Without dead ends: 258 [2019-09-07 12:53:52,731 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2019-09-07 12:53:52,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-09-07 12:53:52,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 222. [2019-09-07 12:53:52,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2019-09-07 12:53:52,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 313 transitions. [2019-09-07 12:53:52,745 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 313 transitions. Word has length 44 [2019-09-07 12:53:52,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:52,745 INFO L475 AbstractCegarLoop]: Abstraction has 222 states and 313 transitions. [2019-09-07 12:53:52,745 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-07 12:53:52,746 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 313 transitions. [2019-09-07 12:53:52,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-07 12:53:52,748 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:52,748 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-09-07 12:53:52,748 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:52,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:52,749 INFO L82 PathProgramCache]: Analyzing trace with hash 1181423851, now seen corresponding path program 1 times [2019-09-07 12:53:52,749 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:52,749 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:52,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:52,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:52,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:52,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:52,858 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-07 12:53:52,859 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-07 12:53:52,859 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-07 12:53:52,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:52,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-07 12:53:52,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-07 12:53:53,021 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-07 12:53:53,025 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-07 12:53:53,025 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 12 [2019-09-07 12:53:53,026 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-07 12:53:53,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-07 12:53:53,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-09-07 12:53:53,027 INFO L87 Difference]: Start difference. First operand 222 states and 313 transitions. Second operand 12 states. [2019-09-07 12:53:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:53,418 INFO L93 Difference]: Finished difference Result 413 states and 606 transitions. [2019-09-07 12:53:53,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-07 12:53:53,423 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 48 [2019-09-07 12:53:53,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:53,425 INFO L225 Difference]: With dead ends: 413 [2019-09-07 12:53:53,426 INFO L226 Difference]: Without dead ends: 342 [2019-09-07 12:53:53,427 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2019-09-07 12:53:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2019-09-07 12:53:53,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 325. [2019-09-07 12:53:53,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-09-07 12:53:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 461 transitions. [2019-09-07 12:53:53,444 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 461 transitions. Word has length 48 [2019-09-07 12:53:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:53,444 INFO L475 AbstractCegarLoop]: Abstraction has 325 states and 461 transitions. [2019-09-07 12:53:53,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-07 12:53:53,444 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 461 transitions. [2019-09-07 12:53:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-07 12:53:53,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:53,446 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-09-07 12:53:53,446 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:53,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:53,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1238682153, now seen corresponding path program 1 times [2019-09-07 12:53:53,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:53,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:53,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:53,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:53,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-07 12:53:53,757 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-07 12:53:53,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-07 12:53:53,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-07 12:53:53,758 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-07 12:53:53,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-07 12:53:53,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2019-09-07 12:53:53,759 INFO L87 Difference]: Start difference. First operand 325 states and 461 transitions. Second operand 13 states. [2019-09-07 12:53:54,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-07 12:53:54,215 INFO L93 Difference]: Finished difference Result 348 states and 491 transitions. [2019-09-07 12:53:54,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-07 12:53:54,215 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2019-09-07 12:53:54,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-07 12:53:54,218 INFO L225 Difference]: With dead ends: 348 [2019-09-07 12:53:54,218 INFO L226 Difference]: Without dead ends: 346 [2019-09-07 12:53:54,219 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2019-09-07 12:53:54,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2019-09-07 12:53:54,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 329. [2019-09-07 12:53:54,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 329 states. [2019-09-07 12:53:54,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 464 transitions. [2019-09-07 12:53:54,236 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 464 transitions. Word has length 48 [2019-09-07 12:53:54,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-07 12:53:54,236 INFO L475 AbstractCegarLoop]: Abstraction has 329 states and 464 transitions. [2019-09-07 12:53:54,236 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-07 12:53:54,236 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 464 transitions. [2019-09-07 12:53:54,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-07 12:53:54,238 INFO L391 BasicCegarLoop]: Found error trace [2019-09-07 12:53:54,238 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2019-09-07 12:53:54,238 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-07 12:53:54,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-07 12:53:54,239 INFO L82 PathProgramCache]: Analyzing trace with hash -350830227, now seen corresponding path program 1 times [2019-09-07 12:53:54,239 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-07 12:53:54,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-07 12:53:54,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:54,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-07 12:53:54,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-07 12:53:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-07 12:53:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-07 12:53:54,316 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-07 12:53:54,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.09 12:53:54 BoogieIcfgContainer [2019-09-07 12:53:54,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-07 12:53:54,381 INFO L168 Benchmark]: Toolchain (without parser) took 6208.13 ms. Allocated memory was 135.3 MB in the beginning and 293.6 MB in the end (delta: 158.3 MB). Free memory was 89.8 MB in the beginning and 158.1 MB in the end (delta: -68.2 MB). Peak memory consumption was 90.1 MB. Max. memory is 7.1 GB. [2019-09-07 12:53:54,383 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-07 12:53:54,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.80 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 89.6 MB in the beginning and 176.0 MB in the end (delta: -86.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-09-07 12:53:54,385 INFO L168 Benchmark]: Boogie Preprocessor took 46.80 ms. Allocated memory is still 201.9 MB. Free memory was 176.0 MB in the beginning and 174.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-09-07 12:53:54,386 INFO L168 Benchmark]: RCFGBuilder took 605.02 ms. Allocated memory is still 201.9 MB. Free memory was 173.6 MB in the beginning and 145.6 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. [2019-09-07 12:53:54,391 INFO L168 Benchmark]: TraceAbstraction took 5137.22 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 145.0 MB in the beginning and 158.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. [2019-09-07 12:53:54,398 INFO L335 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 135.3 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 414.80 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 89.6 MB in the beginning and 176.0 MB in the end (delta: -86.4 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 46.80 ms. Allocated memory is still 201.9 MB. Free memory was 176.0 MB in the beginning and 174.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 605.02 ms. Allocated memory is still 201.9 MB. Free memory was 173.6 MB in the beginning and 145.6 MB in the end (delta: 27.9 MB). Peak memory consumption was 27.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5137.22 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 145.0 MB in the beginning and 158.1 MB in the end (delta: -13.0 MB). Peak memory consumption was 78.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 101, overapproximation of bitwiseAnd at line 99. Possible FailurePath: [L217] unsigned int a ; [L218] unsigned int ma = __VERIFIER_nondet_uint(); [L219] signed char ea = __VERIFIER_nondet_char(); [L220] unsigned int b ; [L221] unsigned int mb = __VERIFIER_nondet_uint(); [L222] signed char eb = __VERIFIER_nondet_char(); [L223] unsigned int r_add ; [L224] unsigned int zero ; [L225] int sa ; [L226] int sb ; [L227] int tmp ; [L228] int tmp___0 ; [L229] int tmp___1 ; [L230] int tmp___2 ; [L231] int tmp___3 ; [L232] int tmp___4 ; [L233] int tmp___5 ; [L234] int tmp___6 ; [L235] int tmp___7 ; [L236] int tmp___8 ; [L237] int tmp___9 ; [L238] int __retres23 ; VAL [ea=127, eb=0, ma=33554432, mb=16777216] [L242] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L16] unsigned int res ; [L17] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L20] COND TRUE ! m [L21] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L71] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L242] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=127, eb=0, ma=33554432, mb=16777216] [L242] zero = base2flt(0, 0) [L243] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=127, \old(m)=33554432] [L16] unsigned int res ; [L17] unsigned int __retres4 ; VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L20] COND FALSE !(! m) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L26] COND FALSE !(m < 1U << 24U) VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L48] COND TRUE 1 VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L50] COND TRUE m >= 1U << 25U VAL [\old(e)=127, \old(m)=33554432, e=127, m=33554432] [L55] COND TRUE e >= 127 [L56] __retres4 = 4294967295U VAL [\old(e)=127, \old(m)=33554432, __retres4=4294967295, e=127, m=33554432] [L71] return (__retres4); VAL [\old(e)=127, \old(m)=33554432, \result=4294967295, __retres4=4294967295, e=127, m=33554432] [L243] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=4294967295, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L243] a = base2flt(ma, ea) [L244] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L16] unsigned int res ; [L17] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L20] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L26] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L48] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L50] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L67] m = m & ~ (1U << 24U) [L68] res = m | (unsigned int )((e + 128) << 24U) [L69] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=1, e=0, res=1] [L71] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=4294967297, __retres4=1, e=0, res=1] [L244] RET, EXPR base2flt(mb, eb) VAL [a=4294967295, base2flt(mb, eb)=4294967297, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L244] b = base2flt(mb, eb) [L246] COND FALSE !(a < zero) VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, zero=0] [L249] COND TRUE a > zero [L250] tmp = 1 VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, tmp=1, zero=0] [L254] sa = tmp VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, tmp=1, zero=0] [L256] COND FALSE !(b < zero) VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, tmp=1, zero=0] [L259] COND TRUE b > zero [L260] tmp___0 = 1 VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, tmp=1, tmp___0=1, zero=0] [L264] sb = tmp___0 VAL [a=4294967295, b=1, ea=127, eb=0, ma=33554432, mb=16777216, sa=1, sb=1, tmp=1, tmp___0=1, zero=0] [L267] CALL addflt(a, b) VAL [\old(a)=4294967295, \old(b)=1] [L75] unsigned int res ; [L76] unsigned int ma ; [L77] unsigned int mb ; [L78] unsigned int delta ; [L79] int ea ; [L80] int eb ; [L81] unsigned int tmp ; [L82] unsigned int __retres10 ; VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L85] COND FALSE !(a < b) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1] [L92] COND FALSE !(! b) [L99] ma = a & ((1U << 24U) - 1U) [L100] ea = (int )(a >> 24U) - 128 [L101] ma = ma | (1U << 24U) [L102] mb = b & ((1U << 24U) - 1U) [L103] eb = (int )(b >> 24U) - 128 [L104] mb = mb | (1U << 24U) VAL [\old(a)=4294967295, \old(b)=1, a=4294967295, b=1, ea=127, eb=128] [L105] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 91 locations, 1 error locations. UNSAFE Result, 5.0s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 870 SDtfs, 547 SDslu, 6026 SDs, 0 SdLazy, 1804 SolverSat, 59 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 161 SyntacticMatches, 9 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=329occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 112 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 508 NumberOfCodeBlocks, 508 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 62342 SizeOfPredicates, 18 NumberOfNonLiveVariables, 499 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 132/177 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...