/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c
--------------------------------------------------------------------------------
This is Ultimate 0.2.0-b8ad66e
[2020-10-24 00:30:33,922 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2020-10-24 00:30:33,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2020-10-24 00:30:33,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2020-10-24 00:30:33,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2020-10-24 00:30:33,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2020-10-24 00:30:33,974 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2020-10-24 00:30:33,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2020-10-24 00:30:33,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2020-10-24 00:30:33,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2020-10-24 00:30:33,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2020-10-24 00:30:33,994 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2020-10-24 00:30:33,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2020-10-24 00:30:33,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2020-10-24 00:30:33,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2020-10-24 00:30:34,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2020-10-24 00:30:34,003 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2020-10-24 00:30:34,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2020-10-24 00:30:34,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2020-10-24 00:30:34,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2020-10-24 00:30:34,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2020-10-24 00:30:34,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2020-10-24 00:30:34,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2020-10-24 00:30:34,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2020-10-24 00:30:34,048 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2020-10-24 00:30:34,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2020-10-24 00:30:34,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2020-10-24 00:30:34,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2020-10-24 00:30:34,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2020-10-24 00:30:34,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2020-10-24 00:30:34,055 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2020-10-24 00:30:34,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2020-10-24 00:30:34,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
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[2020-10-24 00:30:34,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2020-10-24 00:30:34,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2020-10-24 00:30:34,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2020-10-24 00:30:34,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2020-10-24 00:30:34,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2020-10-24 00:30:34,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2020-10-24 00:30:34,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2020-10-24 00:30:34,064 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf
[2020-10-24 00:30:34,086 INFO L113 SettingsManager]: Loading preferences was successful
[2020-10-24 00:30:34,086 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2020-10-24 00:30:34,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2020-10-24 00:30:34,090 INFO L138 SettingsManager]: * sizeof long=4
[2020-10-24 00:30:34,090 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2020-10-24 00:30:34,091 INFO L138 SettingsManager]: * sizeof POINTER=4
[2020-10-24 00:30:34,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2020-10-24 00:30:34,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2020-10-24 00:30:34,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2020-10-24 00:30:34,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2020-10-24 00:30:34,092 INFO L138 SettingsManager]: * sizeof long double=12
[2020-10-24 00:30:34,093 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2020-10-24 00:30:34,093 INFO L138 SettingsManager]: * Use constant arrays=true
[2020-10-24 00:30:34,093 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2020-10-24 00:30:34,094 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2020-10-24 00:30:34,094 INFO L138 SettingsManager]: * Size of a code block=SingleStatement
[2020-10-24 00:30:34,095 INFO L138 SettingsManager]: * To the following directory=./dump/
[2020-10-24 00:30:34,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2020-10-24 00:30:34,095 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2020-10-24 00:30:34,095 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2020-10-24 00:30:34,095 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation
[2020-10-24 00:30:34,096 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2020-10-24 00:30:34,096 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true
[2020-10-24 00:30:34,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2020-10-24 00:30:34,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2020-10-24 00:30:34,508 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2020-10-24 00:30:34,509 INFO L271 PluginConnector]: Initializing CDTParser...
[2020-10-24 00:30:34,512 INFO L275 PluginConnector]: CDTParser initialized
[2020-10-24 00:30:34,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c
[2020-10-24 00:30:34,604 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2567b3111/f3d503b56b92476c9d398461027c5c9c/FLAGd86faeb1f
[2020-10-24 00:30:35,237 INFO L306 CDTParser]: Found 1 translation units.
[2020-10-24 00:30:35,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c
[2020-10-24 00:30:35,245 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2567b3111/f3d503b56b92476c9d398461027c5c9c/FLAGd86faeb1f
[2020-10-24 00:30:35,594 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2567b3111/f3d503b56b92476c9d398461027c5c9c
[2020-10-24 00:30:35,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2020-10-24 00:30:35,606 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2020-10-24 00:30:35,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2020-10-24 00:30:35,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2020-10-24 00:30:35,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2020-10-24 00:30:35,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7021f3b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35, skipping insertion in model container
[2020-10-24 00:30:35,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,624 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2020-10-24 00:30:35,639 INFO L178 MainTranslator]: Built tables and reachable declarations
[2020-10-24 00:30:35,805 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-24 00:30:35,815 INFO L203 MainTranslator]: Completed pre-run
[2020-10-24 00:30:35,838 INFO L206 PostProcessor]: Analyzing one entry point: main
[2020-10-24 00:30:35,857 INFO L208 MainTranslator]: Completed translation
[2020-10-24 00:30:35,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35 WrapperNode
[2020-10-24 00:30:35,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2020-10-24 00:30:35,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2020-10-24 00:30:35,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2020-10-24 00:30:35,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2020-10-24 00:30:35,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,895 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (1/1) ...
[2020-10-24 00:30:35,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2020-10-24 00:30:35,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2020-10-24 00:30:35,901 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2020-10-24 00:30:35,901 INFO L275 PluginConnector]: RCFGBuilder initialized
[2020-10-24 00:30:35,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (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
[2020-10-24 00:30:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init
[2020-10-24 00:30:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2020-10-24 00:30:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error
[2020-10-24 00:30:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert
[2020-10-24 00:30:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure cast
[2020-10-24 00:30:35,983 INFO L138 BoogieDeclarations]: Found implementation of procedure main
[2020-10-24 00:30:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure abort
[2020-10-24 00:30:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail
[2020-10-24 00:30:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error
[2020-10-24 00:30:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2020-10-24 00:30:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int
[2020-10-24 00:30:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert
[2020-10-24 00:30:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure cast
[2020-10-24 00:30:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~int
[2020-10-24 00:30:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int
[2020-10-24 00:30:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~real
[2020-10-24 00:30:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc
[2020-10-24 00:30:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure main
[2020-10-24 00:30:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init
[2020-10-24 00:30:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2020-10-24 00:30:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2020-10-24 00:30:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~real
[2020-10-24 00:30:36,410 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2020-10-24 00:30:36,410 INFO L298 CfgBuilder]: Removed 0 assume(true) statements.
[2020-10-24 00:30:36,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:30:36 BoogieIcfgContainer
[2020-10-24 00:30:36,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2020-10-24 00:30:36,414 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2020-10-24 00:30:36,414 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2020-10-24 00:30:36,418 INFO L275 PluginConnector]: TraceAbstraction initialized
[2020-10-24 00:30:36,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:30:35" (1/3) ...
[2020-10-24 00:30:36,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691423e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:30:36, skipping insertion in model container
[2020-10-24 00:30:36,419 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:30:35" (2/3) ...
[2020-10-24 00:30:36,420 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691423e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:30:36, skipping insertion in model container
[2020-10-24 00:30:36,420 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:30:36" (3/3) ...
[2020-10-24 00:30:36,422 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c
[2020-10-24 00:30:36,434 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION
[2020-10-24 00:30:36,439 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations.
[2020-10-24 00:30:36,453 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2020-10-24 00:30:36,479 INFO L377 AbstractCegarLoop]: Interprodecural is true
[2020-10-24 00:30:36,480 INFO L378 AbstractCegarLoop]: Hoare is true
[2020-10-24 00:30:36,480 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation
[2020-10-24 00:30:36,480 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2020-10-24 00:30:36,480 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2020-10-24 00:30:36,480 INFO L382 AbstractCegarLoop]: Difference is false
[2020-10-24 00:30:36,481 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2020-10-24 00:30:36,481 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce========
[2020-10-24 00:30:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states.
[2020-10-24 00:30:36,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48
[2020-10-24 00:30:36,508 INFO L414 BasicCegarLoop]: Found error trace
[2020-10-24 00:30:36,509 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]
[2020-10-24 00:30:36,510 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]===
[2020-10-24 00:30:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2020-10-24 00:30:36,517 INFO L82 PathProgramCache]: Analyzing trace with hash 84627513, now seen corresponding path program 1 times
[2020-10-24 00:30:36,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2020-10-24 00:30:36,528 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1754361386]
[2020-10-24 00:30:36,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2020-10-24 00:30:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-24 00:30:36,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-24 00:30:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2020-10-24 00:30:36,775 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2020-10-24 00:30:36,817 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace
[2020-10-24 00:30:36,818 INFO L523 BasicCegarLoop]: Counterexample might be feasible
[2020-10-24 00:30:36,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2020-10-24 00:30:36,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:30:36 BoogieIcfgContainer
[2020-10-24 00:30:36,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2020-10-24 00:30:36,874 INFO L168 Benchmark]: Toolchain (without parser) took 1271.29 ms. Allocated memory is still 151.0 MB. Free memory was 127.7 MB in the beginning and 80.3 MB in the end (delta: 47.4 MB). Peak memory consumption was 49.3 MB. Max. memory is 8.0 GB.
[2020-10-24 00:30:36,875 INFO L168 Benchmark]: CDTParser took 0.20 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.
[2020-10-24 00:30:36,876 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.77 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 117.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB.
[2020-10-24 00:30:36,877 INFO L168 Benchmark]: Boogie Preprocessor took 40.62 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 115.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
[2020-10-24 00:30:36,878 INFO L168 Benchmark]: RCFGBuilder took 512.06 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 98.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB.
[2020-10-24 00:30:36,879 INFO L168 Benchmark]: TraceAbstraction took 456.69 ms. Allocated memory is still 151.0 MB. Free memory was 98.0 MB in the beginning and 80.3 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB.
[2020-10-24 00:30:36,884 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 151.0 MB. Free memory is still 125.9 MB. There was no memory consumed. Max. memory is 8.0 GB.
* CACSL2BoogieTranslator took 250.77 ms. Allocated memory is still 151.0 MB. Free memory was 127.0 MB in the beginning and 117.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB.
* Boogie Preprocessor took 40.62 ms. Allocated memory is still 151.0 MB. Free memory was 117.0 MB in the beginning and 115.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB.
* RCFGBuilder took 512.06 ms. Allocated memory is still 151.0 MB. Free memory was 115.5 MB in the beginning and 98.3 MB in the end (delta: 17.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB.
* TraceAbstraction took 456.69 ms. Allocated memory is still 151.0 MB. Free memory was 98.0 MB in the beginning and 80.3 MB in the end (delta: 17.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable
Unable to prove that call of __VERIFIER_error() 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()
VAL [__VERIFIER_nondet_int()=0, a=0]
[L33] CALL, EXPR cast(a)
VAL [\old(i)=0]
[L18] union u x, y;
VAL [\old(i)=0, i=0, x={9:0}, y={3:0}]
[L19] x.i[0] = 0x43300000
VAL [\old(i)=0, i=0, x={9:0}, y={3:0}]
[L20] EXPR x.i[0]
VAL [\old(i)=0, i=0, x={9:0}, x.i[0]=1127219200, y={3:0}]
[L20] y.i[0] = x.i[0]
VAL [\old(i)=0, i=0, x={9:0}, x.i[0]=1127219200, y={3:0}]
[L21] x.i[1] = 0x80000000
VAL [\old(i)=0, i=0, x={9:0}, y={3:0}]
[L22] EXPR x.i[1]
VAL [\old(i)=0, i=0, x={9:0}, x.i[1]=-2147483648, y={3:0}]
[L22] y.i[1] = i ^ x.i[1]
VAL [\old(i)=0, i=0, x={9:0}, x.i[1]=-2147483648, y={3:0}]
[L23] EXPR y.d
VAL [\old(i)=0, i=0, x={9:0}, y={3:0}, y.d=1127219211]
[L23] EXPR x.d
VAL [\old(i)=0, i=0, x={9:0}, x.d=1127219203, y={3:0}, y.d=1127219211]
[L23] return y.d - x.d;
VAL [\old(i)=0, i=0, x={9:0}, x.d=1127219203, y={3:0}, y.d=1127219211]
[L23] return y.d - x.d;
VAL [\old(i)=0, i=0, y={3:0}]
[L23] return y.d - x.d;
VAL [\old(i)=0, i=0]
[L33] RET, EXPR cast(a)
VAL [a=0, cast(a)=1127219204]
[L33] r = cast(a)
VAL [a=0, cast(a)=1127219204, r=1127219204]
[L34] CALL __VERIFIER_assert(r == a)
VAL [\old(cond)=0]
[L9] COND TRUE !(cond)
VAL [\old(cond)=0, cond=0]
[L9] CALL reach_error()
[L3] __assert_fail("0", "cast_union_tight.c", 3, "reach_error")
- StatisticsResult: Ultimate Automizer benchmark data
CFG has 6 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, 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=58occurred 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, 47 NumberOfCodeBlocks, 47 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...