/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_tight.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-24 03:54:15,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-24 03:54:15,323 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-24 03:54:15,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-24 03:54:15,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-24 03:54:15,418 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-24 03:54:15,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-24 03:54:15,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-24 03:54:15,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-24 03:54:15,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-24 03:54:15,442 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-24 03:54:15,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-24 03:54:15,451 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-24 03:54:15,452 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-24 03:54:15,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-24 03:54:15,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-24 03:54:15,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-24 03:54:15,477 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-24 03:54:15,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-24 03:54:15,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-24 03:54:15,480 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 03:54:15,506 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-24 03:54:15,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-24 03:54:15,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-24 03:54:15,512 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-24 03:54:15,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-24 03:54:15,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-24 03:54:15,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-24 03:54:15,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-24 03:54:15,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-24 03:54:15,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-24 03:54:15,514 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-24 03:54:15,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-24 03:54:15,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-24 03:54:15,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-24 03:54:15,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-24 03:54:15,515 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-24 03:54:15,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-24 03:54:15,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-24 03:54:15,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-24 03:54:15,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-24 03:54:15,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-24 03:54:15,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-24 03:54:15,517 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=WERNER_OVERAPPROX [2021-02-24 03:54:15,517 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-24 03:54:15,951 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-24 03:54:15,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-24 03:54:15,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-24 03:54:15,980 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-24 03:54:15,982 INFO L275 PluginConnector]: CDTParser initialized [2021-02-24 03:54:15,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c [2021-02-24 03:54:16,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c2ed0704/f25510a902f2444189fe0b6c7a35e909/FLAGdfc721142 [2021-02-24 03:54:16,637 INFO L306 CDTParser]: Found 1 translation units. [2021-02-24 03:54:16,638 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c [2021-02-24 03:54:16,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c2ed0704/f25510a902f2444189fe0b6c7a35e909/FLAGdfc721142 [2021-02-24 03:54:17,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c2ed0704/f25510a902f2444189fe0b6c7a35e909 [2021-02-24 03:54:17,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-24 03:54:17,034 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-24 03:54:17,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-24 03:54:17,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-24 03:54:17,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-24 03:54:17,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,044 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60bc0d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17, skipping insertion in model container [2021-02-24 03:54:17,044 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,054 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-24 03:54:17,073 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-24 03:54:17,293 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_tight.c[495,508] [2021-02-24 03:54:17,318 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:54:17,326 INFO L203 MainTranslator]: Completed pre-run [2021-02-24 03:54:17,340 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_tight.c[495,508] [2021-02-24 03:54:17,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-24 03:54:17,365 INFO L208 MainTranslator]: Completed translation [2021-02-24 03:54:17,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17 WrapperNode [2021-02-24 03:54:17,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-24 03:54:17,367 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-24 03:54:17,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-24 03:54:17,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-24 03:54:17,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (1/1) ... [2021-02-24 03:54:17,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-24 03:54:17,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-24 03:54:17,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-24 03:54:17,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-24 03:54:17,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (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 03:54:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-24 03:54:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-24 03:54:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-24 03:54:17,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-02-24 03:54:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2021-02-24 03:54:17,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-24 03:54:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-24 03:54:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-24 03:54:17,506 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-24 03:54:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-24 03:54:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-24 03:54:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-02-24 03:54:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2021-02-24 03:54:17,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-24 03:54:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-24 03:54:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-24 03:54:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-24 03:54:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-24 03:54:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-24 03:54:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-24 03:54:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-24 03:54:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-24 03:54:17,864 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-24 03:54:17,865 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-24 03:54:17,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:54:17 BoogieIcfgContainer [2021-02-24 03:54:17,872 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-24 03:54:17,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-24 03:54:17,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-24 03:54:17,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-24 03:54:17,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.02 03:54:17" (1/3) ... [2021-02-24 03:54:17,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd685b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:54:17, skipping insertion in model container [2021-02-24 03:54:17,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.02 03:54:17" (2/3) ... [2021-02-24 03:54:17,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bd685b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.02 03:54:17, skipping insertion in model container [2021-02-24 03:54:17,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.02 03:54:17" (3/3) ... [2021-02-24 03:54:17,900 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2021-02-24 03:54:17,918 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-24 03:54:17,930 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-24 03:54:17,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-24 03:54:17,997 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-24 03:54:17,997 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-24 03:54:17,997 INFO L378 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2021-02-24 03:54:17,997 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-24 03:54:17,997 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-24 03:54:17,998 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-24 03:54:17,998 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-24 03:54:17,998 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-24 03:54:18,016 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2021-02-24 03:54:18,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-02-24 03:54:18,027 INFO L414 BasicCegarLoop]: Found error trace [2021-02-24 03:54:18,028 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] [2021-02-24 03:54:18,028 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-24 03:54:18,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-24 03:54:18,036 INFO L82 PathProgramCache]: Analyzing trace with hash 458671001, now seen corresponding path program 1 times [2021-02-24 03:54:18,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-24 03:54:18,046 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653775718] [2021-02-24 03:54:18,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-24 03:54:18,127 INFO L218 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2021-02-24 03:54:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:54:18,295 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:54:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-24 03:54:18,413 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-24 03:54:18,451 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2021-02-24 03:54:18,451 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-24 03:54:18,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-24 03:54:18,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.02 03:54:18 BoogieIcfgContainer [2021-02-24 03:54:18,472 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-24 03:54:18,476 INFO L168 Benchmark]: Toolchain (without parser) took 1451.73 ms. Allocated memory is still 166.7 MB. Free memory was 141.8 MB in the beginning and 131.0 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:18,477 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory is still 140.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-24 03:54:18,478 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.15 ms. Allocated memory is still 166.7 MB. Free memory was 140.7 MB in the beginning and 130.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:18,479 INFO L168 Benchmark]: Boogie Preprocessor took 35.30 ms. Allocated memory is still 166.7 MB. Free memory was 130.9 MB in the beginning and 129.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:18,480 INFO L168 Benchmark]: RCFGBuilder took 469.80 ms. Allocated memory is still 166.7 MB. Free memory was 129.3 MB in the beginning and 148.9 MB in the end (delta: -19.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:18,481 INFO L168 Benchmark]: TraceAbstraction took 594.30 ms. Allocated memory is still 166.7 MB. Free memory was 148.3 MB in the beginning and 131.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-02-24 03:54:18,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 166.7 MB. Free memory is still 140.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 329.15 ms. Allocated memory is still 166.7 MB. Free memory was 140.7 MB in the beginning and 130.9 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 35.30 ms. Allocated memory is still 166.7 MB. Free memory was 130.9 MB in the beginning and 129.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 469.80 ms. Allocated memory is still 166.7 MB. Free memory was 129.3 MB in the beginning and 148.9 MB in the end (delta: -19.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 594.30 ms. Allocated memory is still 166.7 MB. Free memory was 148.3 MB in the beginning and 131.0 MB in the end (delta: 17.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: 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 34, overapproximation of bitwiseXor at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 23. Possible FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) [L18] union u x, y; [L19] x.i[0] = 0x43300000 [L20] EXPR x.i[0] [L20] y.i[0] = x.i[0] [L21] x.i[1] = 0x80000000 [L22] EXPR x.i[1] [L22] y.i[1] = i ^ x.i[1] [L23] EXPR y.d [L23] EXPR x.d [L23] return y.d - x.d; [L23] return y.d - x.d; [L23] return y.d - x.d; [L33] RET, EXPR cast(a) [L33] r = cast(a) [L34] CALL __VERIFIER_assert(r == a) [L9] COND TRUE !(cond) [L9] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 58 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=55occurred 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...