/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/float13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-b7b32d2 [2021-02-21 15:45:41,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-21 15:45:41,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-21 15:45:41,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-02-21 15:45:41,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-02-21 15:45:41,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-02-21 15:45:41,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-02-21 15:45:41,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-02-21 15:45:41,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-02-21 15:45:41,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-02-21 15:45:41,454 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-02-21 15:45:41,455 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-02-21 15:45:41,456 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-21 15:45:41,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-21 15:45:41,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-21 15:45:41,460 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-21 15:45:41,461 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-21 15:45:41,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-21 15:45:41,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-21 15:45:41,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-21 15:45:41,468 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-21 15:45:41,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-21 15:45:41,471 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-21 15:45:41,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-21 15:45:41,475 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-21 15:45:41,479 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-21 15:45:41,480 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-21 15:45:41,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-21 15:45:41,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-21 15:45:41,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-21 15:45:41,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-21 15:45:41,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-21 15:45:41,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-21 15:45:41,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-21 15:45:41,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-21 15:45:41,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-21 15:45:41,511 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 [2021-02-21 15:45:41,566 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-21 15:45:41,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-21 15:45:41,569 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-21 15:45:41,569 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-21 15:45:41,570 INFO L138 SettingsManager]: * Use SBE=true [2021-02-21 15:45:41,570 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-21 15:45:41,572 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-21 15:45:41,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-21 15:45:41,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-21 15:45:41,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-21 15:45:41,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-21 15:45:41,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-21 15:45:41,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-21 15:45:41,574 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-21 15:45:41,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-21 15:45:41,575 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-21 15:45:41,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-21 15:45:41,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-21 15:45:41,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-21 15:45:41,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-21 15:45:41,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-21 15:45:41,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-21 15:45:41,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-21 15:45:41,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-21 15:45:41,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-21 15:45:41,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-21 15:45:41,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-21 15:45:41,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-02-21 15:45:41,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-21 15:45:41,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-21 15:45:42,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-21 15:45:42,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-21 15:45:42,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-21 15:45:42,034 INFO L275 PluginConnector]: CDTParser initialized [2021-02-21 15:45:42,035 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c [2021-02-21 15:45:42,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3797151/38ffb2bee18e4d7bbe37f76e5bd083b4/FLAGdd9449406 [2021-02-21 15:45:42,751 INFO L306 CDTParser]: Found 1 translation units. [2021-02-21 15:45:42,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float13.c [2021-02-21 15:45:42,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3797151/38ffb2bee18e4d7bbe37f76e5bd083b4/FLAGdd9449406 [2021-02-21 15:45:42,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd3797151/38ffb2bee18e4d7bbe37f76e5bd083b4 [2021-02-21 15:45:42,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-21 15:45:42,800 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-21 15:45:42,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-21 15:45:42,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-21 15:45:42,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-21 15:45:42,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:45:42" (1/1) ... [2021-02-21 15:45:42,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d00be3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:42, skipping insertion in model container [2021-02-21 15:45:42,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.02 03:45:42" (1/1) ... [2021-02-21 15:45:42,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-21 15:45:42,832 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-21 15:45:42,982 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/float13.c[497,510] [2021-02-21 15:45:42,987 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/float13.c[569,582] [2021-02-21 15:45:42,988 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/float13.c[631,644] [2021-02-21 15:45:42,992 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/float13.c[693,706] [2021-02-21 15:45:42,994 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/float13.c[764,777] [2021-02-21 15:45:42,997 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/float13.c[836,849] [2021-02-21 15:45:42,999 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/float13.c[895,908] [2021-02-21 15:45:43,001 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/float13.c[954,967] [2021-02-21 15:45:43,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:45:43,018 INFO L203 MainTranslator]: Completed pre-run [2021-02-21 15:45:43,041 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/float13.c[497,510] [2021-02-21 15:45:43,044 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/float13.c[569,582] [2021-02-21 15:45:43,049 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/float13.c[631,644] [2021-02-21 15:45:43,052 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/float13.c[693,706] [2021-02-21 15:45:43,054 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/float13.c[764,777] [2021-02-21 15:45:43,056 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/float13.c[836,849] [2021-02-21 15:45:43,059 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/float13.c[895,908] [2021-02-21 15:45:43,061 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/float13.c[954,967] [2021-02-21 15:45:43,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-21 15:45:43,092 INFO L208 MainTranslator]: Completed translation [2021-02-21 15:45:43,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43 WrapperNode [2021-02-21 15:45:43,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-21 15:45:43,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-21 15:45:43,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-21 15:45:43,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-21 15:45:43,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,126 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (1/1) ... [2021-02-21 15:45:43,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-21 15:45:43,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-21 15:45:43,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-21 15:45:43,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-21 15:45:43,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (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 [2021-02-21 15:45:43,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-21 15:45:43,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-21 15:45:43,331 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-21 15:45:43,331 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-21 15:45:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-21 15:45:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-21 15:45:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-21 15:45:43,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-21 15:45:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-21 15:45:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-21 15:45:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-21 15:45:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-21 15:45:43,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-21 15:45:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-21 15:45:43,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-21 15:45:43,845 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-21 15:45:43,845 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-21 15:45:43,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:45:43 BoogieIcfgContainer [2021-02-21 15:45:43,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-21 15:45:43,849 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-21 15:45:43,849 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-21 15:45:43,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-21 15:45:43,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.02 03:45:42" (1/3) ... [2021-02-21 15:45:43,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5e1834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:45:43, skipping insertion in model container [2021-02-21 15:45:43,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.02 03:45:43" (2/3) ... [2021-02-21 15:45:43,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a5e1834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.02 03:45:43, skipping insertion in model container [2021-02-21 15:45:43,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.02 03:45:43" (3/3) ... [2021-02-21 15:45:43,857 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2021-02-21 15:45:43,865 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-21 15:45:43,871 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2021-02-21 15:45:43,892 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-02-21 15:45:43,930 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-21 15:45:43,930 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-21 15:45:43,930 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-21 15:45:43,930 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-21 15:45:43,930 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-21 15:45:43,930 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-21 15:45:43,931 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-21 15:45:43,931 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-21 15:45:43,949 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2021-02-21 15:45:43,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-02-21 15:45:43,955 INFO L414 BasicCegarLoop]: Found error trace [2021-02-21 15:45:43,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-02-21 15:45:43,956 INFO L428 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-21 15:45:43,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-21 15:45:43,963 INFO L82 PathProgramCache]: Analyzing trace with hash -434634858, now seen corresponding path program 1 times [2021-02-21 15:45:43,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-21 15:45:43,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502732384] [2021-02-21 15:45:43,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-21 15:45:44,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:45:44,119 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:45:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-02-21 15:45:44,148 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-02-21 15:45:44,175 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-02-21 15:45:44,176 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-02-21 15:45:44,176 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-21 15:45:44,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.02 03:45:44 BoogieIcfgContainer [2021-02-21 15:45:44,203 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-21 15:45:44,206 INFO L168 Benchmark]: Toolchain (without parser) took 1415.09 ms. Allocated memory is still 161.5 MB. Free memory was 137.3 MB in the beginning and 128.1 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:44,207 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 136.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-21 15:45:44,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.04 ms. Allocated memory is still 161.5 MB. Free memory was 136.2 MB in the beginning and 125.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:44,209 INFO L168 Benchmark]: Boogie Preprocessor took 75.46 ms. Allocated memory is still 161.5 MB. Free memory was 125.4 MB in the beginning and 123.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:44,210 INFO L168 Benchmark]: RCFGBuilder took 672.98 ms. Allocated memory is still 161.5 MB. Free memory was 123.8 MB in the beginning and 141.7 MB in the end (delta: -18.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:44,211 INFO L168 Benchmark]: TraceAbstraction took 354.42 ms. Allocated memory is still 161.5 MB. Free memory was 141.2 MB in the beginning and 128.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-02-21 15:45:44,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 161.5 MB. Free memory is still 136.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 292.04 ms. Allocated memory is still 161.5 MB. Free memory was 136.2 MB in the beginning and 125.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 75.46 ms. Allocated memory is still 161.5 MB. Free memory was 125.4 MB in the beginning and 123.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 672.98 ms. Allocated memory is still 161.5 MB. Free memory was 123.8 MB in the beginning and 141.7 MB in the end (delta: -18.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 354.42 ms. Allocated memory is still 161.5 MB. Free memory was 141.2 MB in the beginning and 128.1 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); VAL [\old(minus_infinity)=57, \old(NaN)=52, \old(plus_infinity)=54] [L11] _Bool temp; [L14] temp = NaN < plus_infinity VAL [temp=1] [L15] COND TRUE !(!temp) VAL [temp=1] [L15] reach_error() VAL [temp=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 8 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=42occurred 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...