/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:56:25,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:56:25,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:56:25,733 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:56:25,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:56:25,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:56:25,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:56:25,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:56:25,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:56:25,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:56:25,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:56:25,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:56:25,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:56:25,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:56:25,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:56:25,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:56:25,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:56:25,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:56:25,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:56:25,779 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:56:25,781 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:56:25,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:56:25,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:56:25,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:56:25,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:56:25,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-06 21:56:25,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-06 21:56:25,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-06 21:56:25,795 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-06 21:56:25,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-06 21:56:25,797 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-06 21:56:25,798 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-06 21:56:25,798 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-06 21:56:25,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:56:25,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:56:25,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:56:25,802 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-06 21:56:25,836 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:56:25,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:56:25,841 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:56:25,842 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:56:25,843 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:56:25,843 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:56:25,843 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:56:25,844 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:56:25,844 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:56:25,844 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:56:25,844 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:56:25,845 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:56:25,845 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:56:25,845 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:56:25,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:56:25,847 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:56:25,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:56:25,848 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:56:25,848 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:56:25,848 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:56:25,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:56:25,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:56:25,849 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:56:25,849 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:56:25,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:56:25,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:56:25,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:56:25,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:56:25,851 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:56:25,851 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:56:26,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:56:26,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:56:26,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:56:26,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:56:26,353 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:56:26,354 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c [2020-11-06 21:56:26,438 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baea1ebf2/620be4ac3a734e349351f06358d6b674/FLAG4e2c74811 [2020-11-06 21:56:27,014 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:56:27,015 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c [2020-11-06 21:56:27,026 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baea1ebf2/620be4ac3a734e349351f06358d6b674/FLAG4e2c74811 [2020-11-06 21:56:27,416 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/baea1ebf2/620be4ac3a734e349351f06358d6b674 [2020-11-06 21:56:27,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:56:27,427 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:56:27,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:56:27,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:56:27,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:56:27,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da28d2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27, skipping insertion in model container [2020-11-06 21:56:27,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,453 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:56:27,473 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:56:27,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:56:27,649 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:56:27,670 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:56:27,687 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:56:27,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27 WrapperNode [2020-11-06 21:56:27,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:56:27,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:56:27,689 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:56:27,689 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:56:27,701 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (1/1) ... [2020-11-06 21:56:27,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:56:27,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:56:27,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:56:27,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:56:27,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (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 [2020-11-06 21:56:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:56:27,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:56:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:56:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-06 21:56:27,811 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-11-06 21:56:27,812 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:56:27,812 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:56:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:56:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:56:27,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:56:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 21:56:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-06 21:56:27,814 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-11-06 21:56:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:56:27,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:56:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-06 21:56:27,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:56:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:56:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:56:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:56:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:56:27,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-06 21:56:28,142 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:56:28,142 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 21:56:28,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:28 BoogieIcfgContainer [2020-11-06 21:56:28,143 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:56:28,145 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:56:28,145 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:56:28,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:56:28,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:56:27" (1/3) ... [2020-11-06 21:56:28,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a8d115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:28, skipping insertion in model container [2020-11-06 21:56:28,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:56:27" (2/3) ... [2020-11-06 21:56:28,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a8d115 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:56:28, skipping insertion in model container [2020-11-06 21:56:28,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:56:28" (3/3) ... [2020-11-06 21:56:28,152 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2020-11-06 21:56:28,187 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:56:28,191 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:56:28,203 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:56:28,232 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:56:28,232 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:56:28,232 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:56:28,232 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:56:28,232 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:56:28,232 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:56:28,233 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:56:28,233 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:56:28,250 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-11-06 21:56:28,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-06 21:56:28,256 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:56:28,257 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:56:28,257 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:56:28,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:56:28,263 INFO L82 PathProgramCache]: Analyzing trace with hash 2103804219, now seen corresponding path program 1 times [2020-11-06 21:56:28,274 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:56:28,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449949601] [2020-11-06 21:56:28,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:56:28,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:56:28,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:56:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-06 21:56:28,555 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-06 21:56:28,587 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-06 21:56:28,588 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-06 21:56:28,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:56:28,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:56:28 BoogieIcfgContainer [2020-11-06 21:56:28,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:56:28,626 INFO L168 Benchmark]: Toolchain (without parser) took 1202.18 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 119.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:28,626 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:56:28,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:28,629 INFO L168 Benchmark]: Boogie Preprocessor took 37.36 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:28,629 INFO L168 Benchmark]: RCFGBuilder took 416.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 100.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-11-06 21:56:28,630 INFO L168 Benchmark]: TraceAbstraction took 477.45 ms. Allocated memory is still 151.0 MB. Free memory was 99.9 MB in the beginning and 119.6 MB in the end (delta: -19.7 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:56:28,634 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 257.15 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.36 ms. Allocated memory is still 151.0 MB. Free memory was 116.3 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 416.71 ms. Allocated memory is still 151.0 MB. Free memory was 114.6 MB in the beginning and 100.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 477.45 ms. Allocated memory is still 151.0 MB. Free memory was 99.9 MB in the beginning and 119.6 MB in the end (delta: -19.7 MB). There was no memory consumed. 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 someBinaryArithmeticDOUBLEoperation at line 23, overapproximation of bitwiseXor at line 22. Possible FailurePath: [L28] int a; [L29] double r; [L31] a = __VERIFIER_nondet_int() [L33] CALL, EXPR cast(a) VAL [\old(i)=-1] [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; VAL [\old(i)=-1, i=-1] [L33] RET, EXPR cast(a) VAL [a=-1, cast(a)=1127219212] [L33] r = cast(a) [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, 27 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=27occurred 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, 16 NumberOfCodeBlocks, 16 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...