/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_union_loose.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:54:14,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:54:14,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:54:14,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-24 03:54:14,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-24 03:54:14,121 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-24 03:54:14,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-24 03:54:14,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-24 03:54:14,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-24 03:54:14,129 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-24 03:54:14,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-24 03:54:14,133 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-24 03:54:14,133 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:54:14,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:54:14,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:54:14,138 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:54:14,139 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:54:14,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:54:14,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:54:14,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:54:14,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:54:14,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:54:14,150 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:54:14,151 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:54:14,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 03:54:14,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:54:14,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:54:14,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:54:14,186 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationWernerOverapprox_32.epf [2021-02-24 03:54:14,208 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:54:14,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:54:14,210 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:54:14,211 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:54:14,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:54:14,211 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:54:14,211 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:54:14,212 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:54:14,212 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:54:14,212 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:54:14,213 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:54:14,214 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:54:14,214 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:54:14,214 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:54:14,215 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:54:14,215 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:54:14,215 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:54:14,215 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:54:14,216 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:54:14,216 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:54:14,216 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:54:14,216 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:54:14,216 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:54:14,217 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:54:14,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:54:14,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:54:14,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:54:14,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:54:14,668 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:54:14,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_loose.c [2021-02-24 03:54:14,756 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619b19711/512aa24a356c446883c6f7467b2679eb/FLAGee3b9da6b [2021-02-24 03:54:15,335 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:54:15,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_loose.c [2021-02-24 03:54:15,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619b19711/512aa24a356c446883c6f7467b2679eb/FLAGee3b9da6b [2021-02-24 03:54:15,732 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/619b19711/512aa24a356c446883c6f7467b2679eb [2021-02-24 03:54:15,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:54:15,750 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:54:15,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:54:15,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:54:15,760 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:54:15,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:54:15" (1/1) ... [2021-02-24 03:54:15,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27406e30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:15, skipping insertion in model container [2021-02-24 03:54:15,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:54:15" (1/1) ... [2021-02-24 03:54:15,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:54:15,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:54:16,010 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_loose.c[582,595] [2021-02-24 03:54:16,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:54:16,048 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:54:16,064 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_loose.c[582,595] [2021-02-24 03:54:16,089 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:54:16,118 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:54:16,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16 WrapperNode [2021-02-24 03:54:16,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:54:16,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:54:16,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:54:16,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:54:16,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (1/1) ... [2021-02-24 03:54:16,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:54:16,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:54:16,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:54:16,194 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:54:16,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (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 [2021-02-24 03:54:16,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:54:16,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:54:16,295 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:54:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-02-24 03:54:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 03:54:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2021-02-24 03:54:16,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:54:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:54:16,296 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:54:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:54:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:54:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:54:16,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-02-24 03:54:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 03:54:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2021-02-24 03:54:16,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:54:16,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:54:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-24 03:54:16,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:54:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:54:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:54:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:54:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:54:16,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-24 03:54:16,645 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:54:16,645 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 03:54:16,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:54:16 BoogieIcfgContainer [2021-02-24 03:54:16,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:54:16,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:54:16,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:54:16,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:54:16,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:54:15" (1/3) ... [2021-02-24 03:54:16,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed503ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:54:16, skipping insertion in model container [2021-02-24 03:54:16,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:16" (2/3) ... [2021-02-24 03:54:16,657 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ed503ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:54:16, skipping insertion in model container [2021-02-24 03:54:16,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:54:16" (3/3) ... [2021-02-24 03:54:16,660 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-02-24 03:54:16,668 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:54:16,673 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:54:16,697 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:54:16,758 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:54:16,758 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:54:16,758 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:54:16,758 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:54:16,758 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:54:16,759 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:54:16,759 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:54:16,759 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:54:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2021-02-24 03:54:16,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-02-24 03:54:16,802 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:54:16,803 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-24 03:54:16,803 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:54:16,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:54:16,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1597145729, now seen corresponding path program 1 times [2021-02-24 03:54:16,819 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:54:16,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629296041] [2021-02-24 03:54:16,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:54:16,923 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:54:17,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:54:17,086 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:54:17,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:54:17,161 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:54:17,203 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:54:17,204 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:54:17,204 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:54:17,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:54:17 BoogieIcfgContainer [2021-02-24 03:54:17,228 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:54:17,233 INFO L168 Benchmark]: Toolchain (without parser) took 1491.49 ms. Allocated memory is still 151.0 MB. Free memory was 127.4 MB in the beginning and 119.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:17,234 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:54:17,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.27 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:17,238 INFO L168 Benchmark]: Boogie Preprocessor took 66.48 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:17,239 INFO L168 Benchmark]: RCFGBuilder took 455.03 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 96.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:17,240 INFO L168 Benchmark]: TraceAbstraction took 577.69 ms. Allocated memory is still 151.0 MB. Free memory was 95.8 MB in the beginning and 119.1 MB in the end (delta: -23.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:54:17,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 364.27 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.2 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 66.48 ms. Allocated memory is still 151.0 MB. Free memory was 116.2 MB in the beginning and 114.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 455.03 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 96.3 MB in the end (delta: 18.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 577.69 ms. Allocated memory is still 151.0 MB. Free memory was 95.8 MB in the beginning and 119.1 MB in the end (delta: -23.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: 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 39, overapproximation of bitwiseXor at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, 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=61occurred 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: No data available, 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...