/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 0.1.25-72570d3 [2020-08-22 21:47:54,471 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:47:54,473 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:47:54,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:47:54,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:47:54,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:47:54,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:47:54,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:47:54,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:47:54,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:47:54,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:47:54,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:47:54,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:47:54,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:47:54,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:47:54,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:47:54,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:47:54,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:47:54,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:47:54,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:47:54,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:47:54,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:47:54,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:47:54,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:47:54,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 21:47:54,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 21:47:54,523 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 21:47:54,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 21:47:54,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 21:47:54,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 21:47:54,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:47:54,526 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:47:54,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:47:54,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:47:54,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:47:54,528 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:47:54,529 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:47:54,529 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:47:54,529 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:47:54,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:47:54,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:47:54,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 21:47:54,550 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:47:54,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:47:54,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:47:54,555 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:47:54,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:47:54,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:47:54,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:47:54,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:47:54,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:47:54,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:47:54,556 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:47:54,556 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:47:54,558 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:47:54,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:47:54,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:47:54,559 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:47:54,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:47:54,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:47:54,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:47:54,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:47:54,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:47:54,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:47:54,561 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 [2020-08-22 21:47:54,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:47:54,892 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:47:54,897 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:47:54,899 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:47:54,899 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:47:54,900 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_loose.c [2020-08-22 21:47:54,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f33004f/4ce572c95b4d4ea3ae0a1bcac5bf7cf3/FLAGed6b05930 [2020-08-22 21:47:55,403 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:47:55,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_loose.c [2020-08-22 21:47:55,410 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f33004f/4ce572c95b4d4ea3ae0a1bcac5bf7cf3/FLAGed6b05930 [2020-08-22 21:47:55,814 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27f33004f/4ce572c95b4d4ea3ae0a1bcac5bf7cf3 [2020-08-22 21:47:55,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:47:55,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:47:55,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:47:55,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:47:55,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:47:55,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:47:55" (1/1) ... [2020-08-22 21:47:55,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157b9027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:55, skipping insertion in model container [2020-08-22 21:47:55,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:47:55" (1/1) ... [2020-08-22 21:47:55,839 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:47:55,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:47:56,051 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:47:56,055 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:47:56,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:47:56,189 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:47:56,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56 WrapperNode [2020-08-22 21:47:56,190 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:47:56,191 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:47:56,191 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:47:56,191 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:47:56,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,223 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (1/1) ... [2020-08-22 21:47:56,229 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:47:56,230 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:47:56,230 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:47:56,230 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:47:56,231 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (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 [2020-08-22 21:47:56,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:47:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:47:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 21:47:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 21:47:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-08-22 21:47:56,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:47:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:47:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:47:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 21:47:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 21:47:56,287 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 21:47:56,288 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:47:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:47:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:47:56,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-08-22 21:47:56,567 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:47:56,567 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 21:47:56,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:47:56 BoogieIcfgContainer [2020-08-22 21:47:56,573 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:47:56,574 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:47:56,574 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:47:56,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:47:56,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:47:55" (1/3) ... [2020-08-22 21:47:56,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61958e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:47:56, skipping insertion in model container [2020-08-22 21:47:56,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:47:56" (2/3) ... [2020-08-22 21:47:56,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61958e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:47:56, skipping insertion in model container [2020-08-22 21:47:56,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:47:56" (3/3) ... [2020-08-22 21:47:56,581 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2020-08-22 21:47:56,593 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:47:56,600 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:47:56,617 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:47:56,641 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:47:56,642 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:47:56,642 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:47:56,642 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:47:56,642 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:47:56,642 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:47:56,643 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:47:56,643 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:47:56,662 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-08-22 21:47:56,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-08-22 21:47:56,673 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:47:56,675 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] [2020-08-22 21:47:56,675 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:47:56,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:47:56,682 INFO L82 PathProgramCache]: Analyzing trace with hash -1178751454, now seen corresponding path program 1 times [2020-08-22 21:47:56,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:47:56,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648265213] [2020-08-22 21:47:56,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:47:56,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:47:56,869 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:47:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:47:56,922 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:47:56,982 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:47:56,983 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:47:56,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:47:57,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:47:57 BoogieIcfgContainer [2020-08-22 21:47:57,021 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:47:57,025 INFO L168 Benchmark]: Toolchain (without parser) took 1198.75 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 143.2 MB in the end (delta: -39.3 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:47:57,026 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-08-22 21:47:57,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 365.08 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 182.0 MB in the end (delta: -78.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:47:57,029 INFO L168 Benchmark]: Boogie Preprocessor took 38.41 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 179.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-08-22 21:47:57,030 INFO L168 Benchmark]: RCFGBuilder took 343.20 ms. Allocated memory is still 203.4 MB. Free memory was 179.7 MB in the beginning and 161.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2020-08-22 21:47:57,032 INFO L168 Benchmark]: TraceAbstraction took 447.29 ms. Allocated memory is still 203.4 MB. Free memory was 160.7 MB in the beginning and 143.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:47:57,038 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 140.0 MB. Free memory was 122.6 MB in the beginning and 122.1 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 365.08 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 103.9 MB in the beginning and 182.0 MB in the end (delta: -78.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 38.41 ms. Allocated memory is still 203.4 MB. Free memory was 182.0 MB in the beginning and 179.7 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 343.20 ms. Allocated memory is still 203.4 MB. Free memory was 179.7 MB in the beginning and 161.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 447.29 ms. Allocated memory is still 203.4 MB. Free memory was 160.7 MB in the beginning and 143.2 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 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...