/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.trace.refinement.strategy CAMEL_NO_AM -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 0.1.25-79ed534 [2020-07-19 21:10:48,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 21:10:48,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 21:10:48,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 21:10:48,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 21:10:48,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 21:10:48,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 21:10:48,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 21:10:48,560 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 21:10:48,567 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 21:10:48,568 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 21:10:48,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 21:10:48,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 21:10:48,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 21:10:48,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 21:10:48,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 21:10:48,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 21:10:48,579 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 21:10:48,582 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 21:10:48,584 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 21:10:48,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 21:10:48,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 21:10:48,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 21:10:48,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 21:10:48,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 21:10:48,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 21:10:48,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 21:10:48,599 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 21:10:48,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 21:10:48,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 21:10:48,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 21:10:48,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 21:10:48,603 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 21:10:48,606 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 21:10:48,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 21:10:48,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 21:10:48,611 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 21:10:48,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 21:10:48,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 21:10:48,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 21:10:48,613 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 21:10:48,614 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 [2020-07-19 21:10:48,646 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 21:10:48,646 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 21:10:48,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 21:10:48,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 21:10:48,651 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 21:10:48,651 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 21:10:48,651 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 21:10:48,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 21:10:48,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 21:10:48,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 21:10:48,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 21:10:48,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 21:10:48,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 21:10:48,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 21:10:48,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 21:10:48,653 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 21:10:48,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 21:10:48,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 21:10:48,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 21:10:48,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 21:10:48,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 21:10:48,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 21:10:48,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 21:10:48,656 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 21:10:48,656 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 21:10:48,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 21:10:48,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 21:10:48,656 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 21:10:48,657 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 21:10:48,657 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 21:10:48,938 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 21:10:48,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 21:10:48,957 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 21:10:48,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 21:10:48,960 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 21:10:48,960 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/cast_union_tight.c [2020-07-19 21:10:49,034 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ebd0b89b/5b3a4c3ba2da4c7db51ab9a691e27e85/FLAGd97dcaf6d [2020-07-19 21:10:49,471 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 21:10:49,471 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/cast_union_tight.c [2020-07-19 21:10:49,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ebd0b89b/5b3a4c3ba2da4c7db51ab9a691e27e85/FLAGd97dcaf6d [2020-07-19 21:10:49,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ebd0b89b/5b3a4c3ba2da4c7db51ab9a691e27e85 [2020-07-19 21:10:49,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 21:10:49,926 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 21:10:49,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 21:10:49,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 21:10:49,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 21:10:49,931 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:10:49" (1/1) ... [2020-07-19 21:10:49,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de1a25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:49, skipping insertion in model container [2020-07-19 21:10:49,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 09:10:49" (1/1) ... [2020-07-19 21:10:49,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 21:10:49,957 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 21:10:50,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:10:50,151 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 21:10:50,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 21:10:50,193 INFO L208 MainTranslator]: Completed translation [2020-07-19 21:10:50,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50 WrapperNode [2020-07-19 21:10:50,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 21:10:50,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 21:10:50,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 21:10:50,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 21:10:50,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,303 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (1/1) ... [2020-07-19 21:10:50,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 21:10:50,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 21:10:50,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 21:10:50,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 21:10:50,313 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (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 [2020-07-19 21:10:50,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 21:10:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 21:10:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-19 21:10:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure cast [2020-07-19 21:10:50,365 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 21:10:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 21:10:50,365 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 21:10:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-19 21:10:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure cast [2020-07-19 21:10:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 21:10:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 21:10:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 21:10:50,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-19 21:10:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 21:10:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 21:10:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 21:10:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 21:10:50,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-19 21:10:50,604 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 21:10:50,604 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-19 21:10:50,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:10:50 BoogieIcfgContainer [2020-07-19 21:10:50,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 21:10:50,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 21:10:50,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 21:10:50,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 21:10:50,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 09:10:49" (1/3) ... [2020-07-19 21:10:50,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8947e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:10:50, skipping insertion in model container [2020-07-19 21:10:50,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 09:10:50" (2/3) ... [2020-07-19 21:10:50,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8947e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 09:10:50, skipping insertion in model container [2020-07-19 21:10:50,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 09:10:50" (3/3) ... [2020-07-19 21:10:50,617 INFO L109 eAbstractionObserver]: Analyzing ICFG cast_union_tight.c [2020-07-19 21:10:50,628 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 21:10:50,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 21:10:50,650 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 21:10:50,693 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 21:10:50,694 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 21:10:50,694 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 21:10:50,694 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 21:10:50,695 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 21:10:50,695 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 21:10:50,695 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 21:10:50,695 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 21:10:50,719 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-19 21:10:50,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-19 21:10:50,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 21:10:50,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 21:10:50,733 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 21:10:50,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 21:10:50,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1809195508, now seen corresponding path program 1 times [2020-07-19 21:10:50,749 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 21:10:50,750 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97514671] [2020-07-19 21:10:50,750 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2e642f03 [2020-07-19 21:10:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:10:50,874 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:10:50,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 21:10:50,907 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 21:10:50,931 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 21:10:50,932 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 21:10:50,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 21:10:50,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 09:10:50 BoogieIcfgContainer [2020-07-19 21:10:50,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 21:10:50,958 INFO L168 Benchmark]: Toolchain (without parser) took 1032.43 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.3 MB in the beginning and 149.1 MB in the end (delta: -46.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:10:50,959 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-19 21:10:50,960 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.93 ms. Allocated memory is still 145.8 MB. Free memory was 101.8 MB in the beginning and 91.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-07-19 21:10:50,961 INFO L168 Benchmark]: Boogie Preprocessor took 118.01 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:10:50,962 INFO L168 Benchmark]: RCFGBuilder took 296.63 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 164.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. [2020-07-19 21:10:50,963 INFO L168 Benchmark]: TraceAbstraction took 345.05 ms. Allocated memory is still 202.4 MB. Free memory was 163.9 MB in the beginning and 149.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-19 21:10:50,967 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 145.8 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 266.93 ms. Allocated memory is still 145.8 MB. Free memory was 101.8 MB in the beginning and 91.5 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.01 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 91.5 MB in the beginning and 179.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 296.63 ms. Allocated memory is still 202.4 MB. Free memory was 179.8 MB in the beginning and 164.6 MB in the end (delta: 15.2 MB). Peak memory consumption was 15.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 345.05 ms. Allocated memory is still 202.4 MB. Free memory was 163.9 MB in the beginning and 149.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 7]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 32, overapproximation of someBinaryArithmeticDOUBLEoperation at line 21, overapproximation of bitwiseXor at line 20. Possible FailurePath: [L26] int a; [L27] double r; [L29] a = __VERIFIER_nondet_int() [L31] CALL, EXPR cast(a) VAL [\old(i)=0] [L16] union u x, y; [L17] x.i[0] = 0x43300000 [L18] EXPR x.i[0] [L18] y.i[0] = x.i[0] [L19] x.i[1] = 0x80000000 [L20] EXPR x.i[1] [L20] y.i[1] = i ^ x.i[1] [L21] EXPR y.d [L21] EXPR x.d [L21] return y.d - x.d; [L21] return y.d - x.d; [L21] return y.d - x.d; VAL [\old(i)=0, i=0] [L31] RET, EXPR cast(a) VAL [a=0, cast(a)=1127219206] [L31] r = cast(a) [L32] CALL __VERIFIER_assert(r == a) VAL [\old(cond)=0] [L7] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=23occurred 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, 15 NumberOfCodeBlocks, 15 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...