/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/float3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:06:03,648 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:06:03,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:06:03,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:06:03,691 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:06:03,693 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:06:03,695 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:06:03,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:06:03,700 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:06:03,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:06:03,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:06:03,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:06:03,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:06:03,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:06:03,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:06:03,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:06:03,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:06:03,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:06:03,716 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:06:03,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:06:03,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:06:03,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:06:03,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:06:03,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:06:03,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:06:03,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:06:03,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:06:03,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:06:03,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:06:03,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:06:03,754 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:06:03,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:06:03,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:06:03,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:06:03,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:06:03,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:06:03,763 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:06:03,800 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:06:03,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:06:03,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:06:03,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:06:03,803 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:06:03,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:06:03,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:06:03,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:06:03,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:06:03,804 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:06:03,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:06:03,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:06:03,805 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:06:03,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:06:03,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:06:03,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:06:03,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:06:03,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:06:03,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:06:03,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:06:03,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:06:03,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:06:03,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:06:03,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:06:03,809 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:06:03,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:06:04,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:06:04,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:06:04,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:06:04,235 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:06:04,237 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:06:04,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float3.c [2020-12-23 06:06:04,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9825c7079/62732d3159d84a4497d6d79c15b5115a/FLAGddd02001b [2020-12-23 06:06:05,038 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:06:05,039 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float3.c [2020-12-23 06:06:05,049 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9825c7079/62732d3159d84a4497d6d79c15b5115a/FLAGddd02001b [2020-12-23 06:06:05,406 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/9825c7079/62732d3159d84a4497d6d79c15b5115a [2020-12-23 06:06:05,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:06:05,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:06:05,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:06:05,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:06:05,420 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:06:05,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23f7c69b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05, skipping insertion in model container [2020-12-23 06:06:05,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,433 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:06:05,448 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~d~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:06:05,648 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/float3.c[465,478] [2020-12-23 06:06:05,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:06:05,662 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: lhs: VariableLHS[~d~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~x~0,] [2020-12-23 06:06:05,678 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/float3.c[465,478] [2020-12-23 06:06:05,679 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:06:05,695 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:06:05,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05 WrapperNode [2020-12-23 06:06:05,695 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:06:05,696 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:06:05,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:06:05,697 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:06:05,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,714 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:06:05,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:06:05,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:06:05,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:06:05,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (1/1) ... [2020-12-23 06:06:05,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:06:05,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:06:05,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:06:05,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:06:05,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (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 [2020-12-23 06:06:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:06:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:06:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:06:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:06:06,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:06:06,092 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-23 06:06:06,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:06:06 BoogieIcfgContainer [2020-12-23 06:06:06,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:06:06,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:06:06,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:06:06,100 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:06:06,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:06:05" (1/3) ... [2020-12-23 06:06:06,101 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5730f201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:06:06, skipping insertion in model container [2020-12-23 06:06:06,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:06:05" (2/3) ... [2020-12-23 06:06:06,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5730f201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:06:06, skipping insertion in model container [2020-12-23 06:06:06,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:06:06" (3/3) ... [2020-12-23 06:06:06,104 INFO L111 eAbstractionObserver]: Analyzing ICFG float3.c [2020-12-23 06:06:06,111 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:06:06,116 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:06:06,139 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:06:06,167 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:06:06,168 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:06:06,168 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:06:06,168 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:06:06,168 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:06:06,169 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:06:06,169 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:06:06,169 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:06:06,203 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2020-12-23 06:06:06,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 06:06:06,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:06:06,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:06:06,210 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:06:06,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:06:06,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965381, now seen corresponding path program 1 times [2020-12-23 06:06:06,228 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:06:06,228 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319213459] [2020-12-23 06:06:06,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:06:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:06:06,354 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:06:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 06:06:06,375 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 06:06:06,398 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 06:06:06,398 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 06:06:06,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:06:06,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:06:06 BoogieIcfgContainer [2020-12-23 06:06:06,429 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:06:06,430 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:06:06,430 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:06:06,431 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:06:06,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:06:06" (3/4) ... [2020-12-23 06:06:06,435 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 06:06:06,435 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:06:06,438 INFO L168 Benchmark]: Toolchain (without parser) took 1023.90 ms. Allocated memory is still 161.5 MB. Free memory was 137.6 MB in the beginning and 136.8 MB in the end (delta: 727.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:06:06,439 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory is still 136.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:06:06,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.64 ms. Allocated memory is still 161.5 MB. Free memory was 137.4 MB in the beginning and 128.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:06:06,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.79 ms. Allocated memory is still 161.5 MB. Free memory was 128.0 MB in the beginning and 126.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:06:06,442 INFO L168 Benchmark]: Boogie Preprocessor took 21.44 ms. Allocated memory is still 161.5 MB. Free memory was 126.7 MB in the beginning and 125.8 MB in the end (delta: 891.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:06:06,443 INFO L168 Benchmark]: RCFGBuilder took 338.22 ms. Allocated memory is still 161.5 MB. Free memory was 125.6 MB in the beginning and 115.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:06:06,443 INFO L168 Benchmark]: TraceAbstraction took 333.44 ms. Allocated memory is still 161.5 MB. Free memory was 114.8 MB in the beginning and 136.8 MB in the end (delta: -22.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:06:06,444 INFO L168 Benchmark]: Witness Printer took 5.24 ms. Allocated memory is still 161.5 MB. Free memory is still 136.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:06:06,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 161.5 MB. Free memory is still 136.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 279.64 ms. Allocated memory is still 161.5 MB. Free memory was 137.4 MB in the beginning and 128.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.79 ms. Allocated memory is still 161.5 MB. Free memory was 128.0 MB in the beginning and 126.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 21.44 ms. Allocated memory is still 161.5 MB. Free memory was 126.7 MB in the beginning and 125.8 MB in the end (delta: 891.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 338.22 ms. Allocated memory is still 161.5 MB. Free memory was 125.6 MB in the beginning and 115.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 333.44 ms. Allocated memory is still 161.5 MB. Free memory was 114.8 MB in the beginning and 136.8 MB in the end (delta: -22.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 5.24 ms. Allocated memory is still 161.5 MB. Free memory is still 136.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 26]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 22. Possible FailurePath: [L6] double d = 0.0; VAL [d=0] [L15] int x = 2; [L17] COND TRUE __VERIFIER_nondet_int() [L18] x = 4 VAL [d=0] [L10] d = 1.0 VAL [d=1] [L22] d += (x == 2) [L24] d += (x > 3) [L26] COND TRUE !(d == 2.0) [L26] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 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=11occurred 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, 7 NumberOfCodeBlocks, 7 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...