/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:00:24,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:00:24,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:00:25,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:00:25,029 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:00:25,030 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:00:25,032 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:00:25,034 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:00:25,037 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:00:25,038 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:00:25,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:00:25,065 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:00:25,066 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:00:25,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:00:25,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:00:25,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:00:25,080 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:00:25,084 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:00:25,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:00:25,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:00:25,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:00:25,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:00:25,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:00:25,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:00:25,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:00:25,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:00:25,105 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:00:25,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:00:25,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:00:25,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:00:25,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:00:25,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:00:25,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:00:25,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:00:25,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:00:25,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:00:25,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:00:25,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:00:25,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:00:25,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:00:25,115 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:00:25,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:00:25,142 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:00:25,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:00:25,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:00:25,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:00:25,145 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:00:25,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:00:25,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:00:25,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:00:25,146 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:00:25,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:00:25,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:00:25,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:00:25,147 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:00:25,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:00:25,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:00:25,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:00:25,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:00:25,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:00:25,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:00:25,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:00:25,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:00:25,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:00:25,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:00:25,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:00:25,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:00:25,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:00:25,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:00:25,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:00:25,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:00:25,531 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:00:25,532 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:00:25,533 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2021-01-06 16:00:25,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/843bdd328/bebcc5b9e1834f31b2c7d9bea1bb077c/FLAG96a5a42ba [2021-01-06 16:00:26,210 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:00:26,211 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i [2021-01-06 16:00:26,220 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/843bdd328/bebcc5b9e1834f31b2c7d9bea1bb077c/FLAG96a5a42ba [2021-01-06 16:00:26,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/843bdd328/bebcc5b9e1834f31b2c7d9bea1bb077c [2021-01-06 16:00:26,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:00:26,519 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:00:26,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:00:26,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:00:26,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:00:26,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed90952 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26, skipping insertion in model container [2021-01-06 16:00:26,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:00:26,568 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~m~0,],f] [2021-01-06 16:00:26,733 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2021-01-06 16:00:26,741 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:00:26,754 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#m~0,],base],StructAccessExpression[IdentifierExpression[~#m~0,],offset]]] [2021-01-06 16:00:26,774 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-zero-sum1.i[2011,2024] [2021-01-06 16:00:26,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:00:26,795 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:00:26,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26 WrapperNode [2021-01-06 16:00:26,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:00:26,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:00:26,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:00:26,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:00:26,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,816 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,836 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:00:26,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:00:26,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:00:26,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:00:26,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,895 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... [2021-01-06 16:00:26,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:00:26,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:00:26,917 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:00:26,917 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:00:26,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:00:27,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:00:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:00:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-01-06 16:00:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:00:27,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:00:27,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:00:27,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:00:27,298 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:00:27,299 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-01-06 16:00:27,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:00:27 BoogieIcfgContainer [2021-01-06 16:00:27,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:00:27,307 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:00:27,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:00:27,316 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:00:27,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:00:26" (1/3) ... [2021-01-06 16:00:27,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40745149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:00:27, skipping insertion in model container [2021-01-06 16:00:27,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:00:26" (2/3) ... [2021-01-06 16:00:27,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40745149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:00:27, skipping insertion in model container [2021-01-06 16:00:27,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:00:27" (3/3) ... [2021-01-06 16:00:27,320 INFO L111 eAbstractionObserver]: Analyzing ICFG float-zero-sum1.i [2021-01-06 16:00:27,337 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:00:27,349 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:00:27,389 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:00:27,426 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:00:27,427 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:00:27,427 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:00:27,427 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:00:27,427 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:00:27,427 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:00:27,427 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:00:27,428 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:00:27,441 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2021-01-06 16:00:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-06 16:00:27,447 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:00:27,448 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-06 16:00:27,448 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:00:27,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:00:27,455 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-01-06 16:00:27,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:00:27,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493771069] [2021-01-06 16:00:27,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:00:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:00:27,594 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:00:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-06 16:00:27,618 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-06 16:00:27,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-06 16:00:27,643 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-06 16:00:27,643 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:00:27,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:00:27 BoogieIcfgContainer [2021-01-06 16:00:27,667 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:00:27,668 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:00:27,668 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:00:27,668 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:00:27,673 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:00:27" (3/4) ... [2021-01-06 16:00:27,677 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-01-06 16:00:27,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:00:27,680 INFO L168 Benchmark]: Toolchain (without parser) took 1159.70 ms. Allocated memory is still 153.1 MB. Free memory was 135.2 MB in the beginning and 110.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:27,681 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 153.1 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:00:27,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.48 ms. Allocated memory is still 153.1 MB. Free memory was 135.2 MB in the beginning and 125.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:27,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.90 ms. Allocated memory is still 153.1 MB. Free memory was 125.0 MB in the beginning and 123.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:27,684 INFO L168 Benchmark]: Boogie Preprocessor took 61.55 ms. Allocated memory is still 153.1 MB. Free memory was 136.4 MB in the beginning and 135.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:27,685 INFO L168 Benchmark]: RCFGBuilder took 384.58 ms. Allocated memory is still 153.1 MB. Free memory was 135.3 MB in the beginning and 123.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:27,686 INFO L168 Benchmark]: TraceAbstraction took 360.37 ms. Allocated memory is still 153.1 MB. Free memory was 123.1 MB in the beginning and 111.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:00:27,687 INFO L168 Benchmark]: Witness Printer took 9.11 ms. Allocated memory is still 153.1 MB. Free memory was 110.9 MB in the beginning and 110.5 MB in the end (delta: 321.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:00:27,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 153.1 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 275.48 ms. Allocated memory is still 153.1 MB. Free memory was 135.2 MB in the beginning and 125.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 39.90 ms. Allocated memory is still 153.1 MB. Free memory was 125.0 MB in the beginning and 123.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.55 ms. Allocated memory is still 153.1 MB. Free memory was 136.4 MB in the beginning and 135.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 384.58 ms. Allocated memory is still 153.1 MB. Free memory was 135.3 MB in the beginning and 123.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 360.37 ms. Allocated memory is still 153.1 MB. Free memory was 123.1 MB in the beginning and 111.2 MB in the end (delta: 11.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Witness Printer took 9.11 ms. Allocated memory is still 153.1 MB. Free memory was 110.9 MB in the beginning and 110.5 MB in the end (delta: 321.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 114]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 111, overapproximation of someUnaryDOUBLEoperation at line 122. Possible FailurePath: [L111] float sum = a + b; [L112] union mix m; [L113] m.f = sum [L114] EXPR m.i [L114] COND TRUE !(m.i != 0x80000000) [L114] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...