/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-d966a43 [2022-02-01 00:13:55,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-01 00:13:55,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-01 00:13:55,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-01 00:13:55,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-01 00:13:55,991 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-01 00:13:55,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-01 00:13:55,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-01 00:13:55,995 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-01 00:13:55,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-01 00:13:55,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-01 00:13:55,998 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-01 00:13:55,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-01 00:13:55,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-01 00:13:56,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-01 00:13:56,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-01 00:13:56,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-01 00:13:56,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-01 00:13:56,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-01 00:13:56,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-01 00:13:56,010 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-01 00:13:56,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-01 00:13:56,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-01 00:13:56,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-01 00:13:56,017 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-01 00:13:56,017 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-01 00:13:56,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-01 00:13:56,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-01 00:13:56,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-01 00:13:56,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-01 00:13:56,022 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-01 00:13:56,023 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-01 00:13:56,023 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-01 00:13:56,024 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-01 00:13:56,025 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-01 00:13:56,025 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-01 00:13:56,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-01 00:13:56,026 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-01 00:13:56,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-01 00:13:56,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-01 00:13:56,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-01 00:13:56,034 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-02-01 00:13:56,041 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-01 00:13:56,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-01 00:13:56,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-01 00:13:56,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-01 00:13:56,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-01 00:13:56,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-01 00:13:56,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:13:56,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-02-01 00:13:56,050 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-01 00:13:56,271 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-01 00:13:56,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-01 00:13:56,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-01 00:13:56,303 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-01 00:13:56,304 INFO L275 PluginConnector]: CDTParser initialized [2022-02-01 00:13:56,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-cbmc-regression/float13.c [2022-02-01 00:13:56,378 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20f9f7b6a/5d98c06feacf446fa4f1d99c4d432dd7/FLAGeb97fe5e6 [2022-02-01 00:13:56,687 INFO L306 CDTParser]: Found 1 translation units. [2022-02-01 00:13:56,688 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-cbmc-regression/float13.c [2022-02-01 00:13:56,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20f9f7b6a/5d98c06feacf446fa4f1d99c4d432dd7/FLAGeb97fe5e6 [2022-02-01 00:13:57,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20f9f7b6a/5d98c06feacf446fa4f1d99c4d432dd7 [2022-02-01 00:13:57,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-01 00:13:57,129 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-01 00:13:57,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-01 00:13:57,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-01 00:13:57,135 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-01 00:13:57,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b933c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57, skipping insertion in model container [2022-02-01 00:13:57,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,142 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-01 00:13:57,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-01 00:13:57,269 WARN L230 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] [2022-02-01 00:13:57,271 WARN L230 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] [2022-02-01 00:13:57,272 WARN L230 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] [2022-02-01 00:13:57,273 WARN L230 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] [2022-02-01 00:13:57,274 WARN L230 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] [2022-02-01 00:13:57,274 WARN L230 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] [2022-02-01 00:13:57,275 WARN L230 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] [2022-02-01 00:13:57,276 WARN L230 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] [2022-02-01 00:13:57,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:13:57,285 INFO L203 MainTranslator]: Completed pre-run [2022-02-01 00:13:57,324 WARN L230 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] [2022-02-01 00:13:57,330 WARN L230 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] [2022-02-01 00:13:57,331 WARN L230 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] [2022-02-01 00:13:57,331 WARN L230 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] [2022-02-01 00:13:57,332 WARN L230 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] [2022-02-01 00:13:57,333 WARN L230 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] [2022-02-01 00:13:57,334 WARN L230 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] [2022-02-01 00:13:57,334 WARN L230 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] [2022-02-01 00:13:57,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-01 00:13:57,346 INFO L208 MainTranslator]: Completed translation [2022-02-01 00:13:57,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57 WrapperNode [2022-02-01 00:13:57,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-01 00:13:57,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-01 00:13:57,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-01 00:13:57,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-01 00:13:57,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-01 00:13:57,368 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-01 00:13:57,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-01 00:13:57,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-01 00:13:57,369 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (1/1) ... [2022-02-01 00:13:57,375 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-01 00:13:57,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-01 00:13:57,392 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-01 00:13:57,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-01 00:13:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-01 00:13:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-01 00:13:57,422 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-01 00:13:57,423 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-01 00:13:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-01 00:13:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-01 00:13:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-01 00:13:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-01 00:13:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-01 00:13:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-01 00:13:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-01 00:13:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-01 00:13:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-01 00:13:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-01 00:13:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-01 00:13:57,477 INFO L234 CfgBuilder]: Building ICFG [2022-02-01 00:13:57,479 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-01 00:13:57,575 INFO L275 CfgBuilder]: Performing block encoding [2022-02-01 00:13:57,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-01 00:13:57,582 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-01 00:13:57,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:13:57 BoogieIcfgContainer [2022-02-01 00:13:57,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-01 00:13:57,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-01 00:13:57,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-01 00:13:57,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-01 00:13:57,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.02 12:13:57" (1/3) ... [2022-02-01 00:13:57,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aad509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:13:57, skipping insertion in model container [2022-02-01 00:13:57,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.02 12:13:57" (2/3) ... [2022-02-01 00:13:57,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75aad509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.02 12:13:57, skipping insertion in model container [2022-02-01 00:13:57,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.02 12:13:57" (3/3) ... [2022-02-01 00:13:57,604 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2022-02-01 00:13:57,608 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-01 00:13:57,608 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-02-01 00:13:57,678 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-01 00:13:57,684 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=QVASR [2022-02-01 00:13:57,684 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-02-01 00:13:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 29 states have (on average 1.5517241379310345) internal successors, (45), 37 states have internal predecessors, (45), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-01 00:13:57,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-02-01 00:13:57,717 INFO L506 BasicCegarLoop]: Found error trace [2022-02-01 00:13:57,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-02-01 00:13:57,718 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2022-02-01 00:13:57,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-01 00:13:57,723 INFO L85 PathProgramCache]: Analyzing trace with hash -434634858, now seen corresponding path program 1 times [2022-02-01 00:13:57,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-01 00:13:57,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [464296126] [2022-02-01 00:13:57,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-01 00:13:57,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-01 00:13:57,800 INFO L248 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-01 00:13:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:13:57,883 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-01 00:13:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-01 00:13:57,936 INFO L133 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2022-02-01 00:13:57,937 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-01 00:13:57,940 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2022-02-01 00:13:57,941 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2022-02-01 00:13:57,942 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2022-02-01 00:13:57,943 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr3ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2022-02-01 00:13:57,943 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr4ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2022-02-01 00:13:57,943 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr5ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2022-02-01 00:13:57,944 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr6ASSERT_VIOLATIONERROR_FUNCTION (1 of 8 remaining) [2022-02-01 00:13:57,944 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mainErr7ASSERT_VIOLATIONERROR_FUNCTION (0 of 8 remaining) [2022-02-01 00:13:57,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-01 00:13:57,949 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-01 00:13:57,951 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-01 00:13:57,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.02 12:13:57 BoogieIcfgContainer [2022-02-01 00:13:57,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-01 00:13:57,967 INFO L158 Benchmark]: Toolchain (without parser) took 837.44ms. Allocated memory was 196.1MB in the beginning and 292.6MB in the end (delta: 96.5MB). Free memory was 140.3MB in the beginning and 236.3MB in the end (delta: -95.9MB). Peak memory consumption was 124.2kB. Max. memory is 8.0GB. [2022-02-01 00:13:57,967 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 156.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-01 00:13:57,968 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.81ms. Allocated memory was 196.1MB in the beginning and 292.6MB in the end (delta: 96.5MB). Free memory was 140.1MB in the beginning and 264.1MB in the end (delta: -123.9MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. [2022-02-01 00:13:57,968 INFO L158 Benchmark]: Boogie Preprocessor took 20.64ms. Allocated memory is still 292.6MB. Free memory was 264.1MB in the beginning and 262.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-01 00:13:57,969 INFO L158 Benchmark]: RCFGBuilder took 215.55ms. Allocated memory is still 292.6MB. Free memory was 262.5MB in the beginning and 250.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-01 00:13:57,969 INFO L158 Benchmark]: TraceAbstraction took 380.45ms. Allocated memory is still 292.6MB. Free memory was 250.4MB in the beginning and 236.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-02-01 00:13:57,971 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 196.1MB. Free memory is still 156.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 214.81ms. Allocated memory was 196.1MB in the beginning and 292.6MB in the end (delta: 96.5MB). Free memory was 140.1MB in the beginning and 264.1MB in the end (delta: -123.9MB). Peak memory consumption was 11.9MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.64ms. Allocated memory is still 292.6MB. Free memory was 264.1MB in the beginning and 262.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 215.55ms. Allocated memory is still 292.6MB. Free memory was 262.5MB in the beginning and 250.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 380.45ms. Allocated memory is still 292.6MB. Free memory was 250.4MB in the beginning and 236.3MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L15] reach_error() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 21]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 27]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 30]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 36]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 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: No data available, 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 [2022-02-01 00:13:58,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...