/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/floats-cbmc-regression/float-to-double2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 13:10:41,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 13:10:41,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 13:10:41,128 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-23 13:10:41,129 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-23 13:10:41,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-23 13:10:41,136 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-23 13:10:41,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-23 13:10:41,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-23 13:10:41,163 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-23 13:10:41,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-23 13:10:41,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-23 13:10:41,167 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 13:10:41,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 13:10:41,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 13:10:41,173 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 13:10:41,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 13:10:41,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 13:10:41,188 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 13:10:41,190 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 13:10:41,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 13:10:41,196 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 13:10:41,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 13:10:41,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 13:10:41,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-02-23 13:10:41,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-02-23 13:10:41,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-02-23 13:10:41,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-02-23 13:10:41,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-02-23 13:10:41,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-02-23 13:10:41,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-23 13:10:41,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-23 13:10:41,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-23 13:10:41,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-23 13:10:41,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-23 13:10:41,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-23 13:10:41,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-23 13:10:41,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-23 13:10:41,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 13:10:41,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 13:10:41,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 13:10:41,228 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 [2021-02-23 13:10:41,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 13:10:41,281 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 13:10:41,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-23 13:10:41,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-23 13:10:41,283 INFO L138 SettingsManager]: * Use SBE=true [2021-02-23 13:10:41,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 13:10:41,283 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 13:10:41,284 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 13:10:41,284 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 13:10:41,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 13:10:41,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 13:10:41,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 13:10:41,285 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 13:10:41,285 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 13:10:41,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 13:10:41,285 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 13:10:41,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 13:10:41,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 13:10:41,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-23 13:10:41,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 13:10:41,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 13:10:41,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 13:10:41,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-23 13:10:41,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-23 13:10:41,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-23 13:10:41,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-23 13:10:41,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 13:10:41,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-23 13:10:41,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-23 13:10:41,650 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 13:10:41,688 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 13:10:41,691 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 13:10:41,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 13:10:41,693 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 13:10:41,694 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c [2021-02-23 13:10:41,775 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc112a6e/a33aa079c63042adb013fed4448c336f/FLAG574642dcf [2021-02-23 13:10:42,355 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 13:10:42,358 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c [2021-02-23 13:10:42,368 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc112a6e/a33aa079c63042adb013fed4448c336f/FLAG574642dcf [2021-02-23 13:10:42,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fc112a6e/a33aa079c63042adb013fed4448c336f [2021-02-23 13:10:42,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 13:10:42,728 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 13:10:42,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 13:10:42,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 13:10:42,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 13:10:42,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34d81641 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42, skipping insertion in model container [2021-02-23 13:10:42,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 13:10:42,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 13:10:42,909 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c[380,393] [2021-02-23 13:10:42,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:10:42,929 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 13:10:42,946 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float-to-double2.c[380,393] [2021-02-23 13:10:42,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 13:10:42,962 INFO L208 MainTranslator]: Completed translation [2021-02-23 13:10:42,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42 WrapperNode [2021-02-23 13:10:42,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 13:10:42,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 13:10:42,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 13:10:42,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 13:10:42,976 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,977 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,991 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (1/1) ... [2021-02-23 13:10:42,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 13:10:42,994 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 13:10:42,994 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 13:10:42,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 13:10:42,995 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (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 [2021-02-23 13:10:43,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 13:10:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 13:10:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 13:10:43,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 13:10:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 13:10:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 13:10:43,104 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 13:10:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 13:10:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 13:10:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 13:10:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 13:10:43,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 13:10:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 13:10:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 13:10:43,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 13:10:43,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 13:10:43,315 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 13:10:43,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:10:43 BoogieIcfgContainer [2021-02-23 13:10:43,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 13:10:43,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 13:10:43,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 13:10:43,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 13:10:43,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 01:10:42" (1/3) ... [2021-02-23 13:10:43,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158cbbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:10:43, skipping insertion in model container [2021-02-23 13:10:43,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 01:10:42" (2/3) ... [2021-02-23 13:10:43,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@158cbbad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 01:10:43, skipping insertion in model container [2021-02-23 13:10:43,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 01:10:43" (3/3) ... [2021-02-23 13:10:43,327 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2021-02-23 13:10:43,334 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-23 13:10:43,338 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 13:10:43,359 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 13:10:43,431 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 13:10:43,431 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 13:10:43,432 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-23 13:10:43,432 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 13:10:43,432 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 13:10:43,432 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 13:10:43,433 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 13:10:43,433 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 13:10:43,476 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2021-02-23 13:10:43,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-02-23 13:10:43,485 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 13:10:43,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 13:10:43,489 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 13:10:43,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 13:10:43,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1377405077, now seen corresponding path program 1 times [2021-02-23 13:10:43,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-23 13:10:43,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356342573] [2021-02-23 13:10:43,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 13:10:43,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:10:43,657 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:10:43,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-23 13:10:43,683 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-23 13:10:43,709 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-23 13:10:43,709 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-23 13:10:43,710 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 13:10:43,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 01:10:43 BoogieIcfgContainer [2021-02-23 13:10:43,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 13:10:43,738 INFO L168 Benchmark]: Toolchain (without parser) took 1019.18 ms. Allocated memory is still 152.0 MB. Free memory was 126.8 MB in the beginning and 128.0 MB in the end (delta: -1.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:10:43,739 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 152.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:10:43,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.79 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 115.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:10:43,741 INFO L168 Benchmark]: Boogie Preprocessor took 29.38 ms. Allocated memory is still 152.0 MB. Free memory was 115.9 MB in the beginning and 114.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 13:10:43,742 INFO L168 Benchmark]: RCFGBuilder took 323.17 ms. Allocated memory is still 152.0 MB. Free memory was 114.6 MB in the beginning and 103.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-23 13:10:43,743 INFO L168 Benchmark]: TraceAbstraction took 415.96 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 128.0 MB in the end (delta: -25.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 13:10:43,746 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 152.0 MB. Free memory is still 122.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 233.79 ms. Allocated memory is still 152.0 MB. Free memory was 125.6 MB in the beginning and 115.9 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.38 ms. Allocated memory is still 152.0 MB. Free memory was 115.9 MB in the beginning and 114.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 323.17 ms. Allocated memory is still 152.0 MB. Free memory was 114.6 MB in the beginning and 103.1 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 415.96 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 128.0 MB in the end (delta: -25.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 11]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; VAL [f=57, fp=57] [L11] COND TRUE !(d == fp) VAL [f=57, fp=57] [L11] reach_error() VAL [f=57, fp=57] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 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=14occurred 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, 8 NumberOfCodeBlocks, 8 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...