/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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_loose.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 21:35:29,474 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 21:35:29,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 21:35:29,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 21:35:29,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 21:35:29,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 21:35:29,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 21:35:29,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 21:35:29,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 21:35:29,510 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 21:35:29,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 21:35:29,512 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 21:35:29,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 21:35:29,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 21:35:29,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 21:35:29,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 21:35:29,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 21:35:29,517 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 21:35:29,519 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 21:35:29,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 21:35:29,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 21:35:29,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 21:35:29,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 21:35:29,525 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 21:35:29,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 21:35:29,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 21:35:29,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 21:35:29,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 21:35:29,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 21:35:29,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 21:35:29,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 21:35:29,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 21:35:29,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 21:35:29,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 21:35:29,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 21:35:29,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 21:35:29,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 21:35:29,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 21:35:29,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 21:35:29,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 21:35:29,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 21:35:29,538 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 21:35:29,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 21:35:29,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 21:35:29,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 21:35:29,550 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 21:35:29,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 21:35:29,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 21:35:29,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 21:35:29,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 21:35:29,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 21:35:29,552 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 21:35:29,552 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 21:35:29,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 21:35:29,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 21:35:29,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 21:35:29,553 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 21:35:29,553 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 21:35:29,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 21:35:29,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 21:35:29,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 21:35:29,554 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 21:35:29,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 21:35:29,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 21:35:29,554 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-09-04 21:35:30,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 21:35:30,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 21:35:30,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 21:35:30,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 21:35:30,054 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 21:35:30,055 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_loose.c [2020-09-04 21:35:30,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1e51f69/1379a29e0166485c902521985acb945f/FLAG9d76bc799 [2020-09-04 21:35:30,613 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 21:35:30,614 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/float-benchs/cast_union_loose.c [2020-09-04 21:35:30,622 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1e51f69/1379a29e0166485c902521985acb945f/FLAG9d76bc799 [2020-09-04 21:35:30,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0a1e51f69/1379a29e0166485c902521985acb945f [2020-09-04 21:35:30,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 21:35:30,977 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 21:35:30,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 21:35:30,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 21:35:30,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 21:35:30,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:35:30" (1/1) ... [2020-09-04 21:35:30,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13482720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:30, skipping insertion in model container [2020-09-04 21:35:30,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 09:35:30" (1/1) ... [2020-09-04 21:35:30,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 21:35:31,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 21:35:31,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:35:31,268 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 21:35:31,299 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 21:35:31,405 INFO L208 MainTranslator]: Completed translation [2020-09-04 21:35:31,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31 WrapperNode [2020-09-04 21:35:31,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 21:35:31,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 21:35:31,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 21:35:31,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 21:35:31,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... [2020-09-04 21:35:31,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 21:35:31,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 21:35:31,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 21:35:31,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 21:35:31,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 21:35:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 21:35:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 21:35:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 21:35:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 21:35:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-09-04 21:35:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 21:35:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 21:35:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 21:35:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 21:35:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 21:35:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 21:35:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-09-04 21:35:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 21:35:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 21:35:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 21:35:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-09-04 21:35:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 21:35:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 21:35:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 21:35:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 21:35:31,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-09-04 21:35:31,827 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 21:35:31,827 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 21:35:31,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:35:31 BoogieIcfgContainer [2020-09-04 21:35:31,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 21:35:31,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 21:35:31,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 21:35:31,837 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 21:35:31,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 09:35:30" (1/3) ... [2020-09-04 21:35:31,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451740c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:35:31, skipping insertion in model container [2020-09-04 21:35:31,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 09:35:31" (2/3) ... [2020-09-04 21:35:31,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451740c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 09:35:31, skipping insertion in model container [2020-09-04 21:35:31,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 09:35:31" (3/3) ... [2020-09-04 21:35:31,842 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2020-09-04 21:35:31,864 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 21:35:31,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 21:35:31,919 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 21:35:31,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 21:35:31,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 21:35:31,948 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 21:35:31,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 21:35:31,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 21:35:31,949 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 21:35:31,949 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 21:35:31,949 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 21:35:31,968 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-09-04 21:35:31,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-09-04 21:35:31,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 21:35:31,983 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] [2020-09-04 21:35:31,984 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 21:35:31,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 21:35:31,991 INFO L82 PathProgramCache]: Analyzing trace with hash -1178751454, now seen corresponding path program 1 times [2020-09-04 21:35:32,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 21:35:32,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062384608] [2020-09-04 21:35:32,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 21:35:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:35:32,186 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:35:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 21:35:32,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 21:35:32,285 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 21:35:32,286 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 21:35:32,286 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 21:35:32,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 09:35:32 BoogieIcfgContainer [2020-09-04 21:35:32,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 21:35:32,332 INFO L168 Benchmark]: Toolchain (without parser) took 1354.57 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 100.0 MB in the beginning and 139.8 MB in the end (delta: -39.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2020-09-04 21:35:32,333 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 21:35:32,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 428.64 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 178.5 MB in the end (delta: -78.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-04 21:35:32,336 INFO L168 Benchmark]: Boogie Preprocessor took 60.78 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 176.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-04 21:35:32,337 INFO L168 Benchmark]: RCFGBuilder took 364.82 ms. Allocated memory is still 199.8 MB. Free memory was 175.9 MB in the beginning and 158.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2020-09-04 21:35:32,337 INFO L168 Benchmark]: TraceAbstraction took 495.19 ms. Allocated memory is still 199.8 MB. Free memory was 157.6 MB in the beginning and 139.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. [2020-09-04 21:35:32,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 143.1 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 428.64 ms. Allocated memory was 143.1 MB in the beginning and 199.8 MB in the end (delta: 56.6 MB). Free memory was 99.8 MB in the beginning and 178.5 MB in the end (delta: -78.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 60.78 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 176.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 364.82 ms. Allocated memory is still 199.8 MB. Free memory was 175.9 MB in the beginning and 158.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 495.19 ms. Allocated memory is still 199.8 MB. Free memory was 157.6 MB in the beginning and 139.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 17.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 11]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 37, overapproximation of bitwiseXor at line 24, overapproximation of someBinaryArithmeticDOUBLEoperation at line 25. Possible FailurePath: [L30] int a; [L31] double r; [L33] a = __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=10000, a=10000] [L34] CALL assume_abort_if_not(a >= -10000 && a <= 10000) VAL [\old(cond)=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L34] RET assume_abort_if_not(a >= -10000 && a <= 10000) VAL [a=10000] [L36] CALL, EXPR cast(a) VAL [\old(i)=10000] [L20] union u x, y; VAL [\old(i)=10000, i=10000, x={3:0}, y={2:0}] [L21] x.i[0] = 0x43300000 VAL [\old(i)=10000, i=10000, x={3:0}, y={2:0}] [L22] EXPR x.i[0] VAL [\old(i)=10000, i=10000, x={3:0}, x.i[0]=1127219200, y={2:0}] [L22] y.i[0] = x.i[0] VAL [\old(i)=10000, i=10000, x={3:0}, x.i[0]=1127219200, y={2:0}] [L23] x.i[1] = 0x80000000 VAL [\old(i)=10000, i=10000, x={3:0}, y={2:0}] [L24] EXPR x.i[1] VAL [\old(i)=10000, i=10000, x={3:0}, x.i[1]=-2147483648, y={2:0}] [L24] y.i[1] = i ^ x.i[1] VAL [\old(i)=10000, i=10000, x={3:0}, x.i[1]=-2147483648, y={2:0}] [L25] EXPR y.d VAL [\old(i)=10000, i=10000, x={3:0}, y={2:0}, y.d=1127219208] [L25] EXPR x.d VAL [\old(i)=10000, i=10000, x={3:0}, x.d=1127219204, y={2:0}, y.d=1127219208] [L25] return y.d - x.d; VAL [\old(i)=10000, i=10000, x={3:0}, x.d=1127219204, y={2:0}, y.d=1127219208] [L25] return y.d - x.d; VAL [\old(i)=10000, i=10000, y={2:0}] [L25] return y.d - x.d; VAL [\old(i)=10000, i=10000] [L36] RET, EXPR cast(a) VAL [a=10000, cast(a)=1127219205] [L36] r = cast(a) VAL [a=10000, cast(a)=1127219205, r=1127219205] [L37] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) VAL [\old(cond)=0] [L11] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L11] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 55 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=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: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 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...