./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_float.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3490f452c75bd943c0f7c3f7fb58032fe6d705c ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/nan_float.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3490f452c75bd943c0f7c3f7fb58032fe6d705c ........................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 07:13:34,573 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 07:13:34,574 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 07:13:34,600 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 07:13:34,601 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 07:13:34,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 07:13:34,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 07:13:34,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 07:13:34,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 07:13:34,619 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 07:13:34,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 07:13:34,621 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 07:13:34,621 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 07:13:34,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 07:13:34,622 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 07:13:34,623 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 07:13:34,624 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 07:13:34,624 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 07:13:34,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 07:13:34,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 07:13:34,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 07:13:34,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 07:13:34,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 07:13:34,629 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 07:13:34,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 07:13:34,631 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 07:13:34,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 07:13:34,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 07:13:34,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 07:13:34,632 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 07:13:34,633 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 07:13:34,633 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 07:13:34,634 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 07:13:34,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 07:13:34,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 07:13:34,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 07:13:34,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 07:13:34,635 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 07:13:34,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 07:13:34,636 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 07:13:34,637 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 07:13:34,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 07:13:34,652 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 07:13:34,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 07:13:34,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 07:13:34,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 07:13:34,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 07:13:34,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 07:13:34,654 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 07:13:34,654 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 07:13:34,654 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 07:13:34,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 07:13:34,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 07:13:34,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 07:13:34,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 07:13:34,655 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 07:13:34,655 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 07:13:34,655 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 07:13:34,656 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 07:13:34,656 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 07:13:34,656 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 07:13:34,656 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 07:13:34,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 07:13:34,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 07:13:34,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:13:34,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 07:13:34,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 07:13:34,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 07:13:34,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 07:13:34,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 07:13:34,658 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 07:13:34,658 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 07:13:34,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2021-08-29 07:13:34,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 07:13:34,868 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 07:13:34,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 07:13:34,871 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 07:13:34,871 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 07:13:34,872 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2021-08-29 07:13:34,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ccffb6b/4025a3808e6e4293bbad094fc58652eb/FLAG265ad424b [2021-08-29 07:13:35,222 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 07:13:35,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2021-08-29 07:13:35,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ccffb6b/4025a3808e6e4293bbad094fc58652eb/FLAG265ad424b [2021-08-29 07:13:35,679 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75ccffb6b/4025a3808e6e4293bbad094fc58652eb [2021-08-29 07:13:35,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 07:13:35,683 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 07:13:35,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 07:13:35,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 07:13:35,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 07:13:35,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e52743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35, skipping insertion in model container [2021-08-29 07:13:35,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 07:13:35,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 07:13:35,780 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-08-29 07:13:35,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:13:35,790 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 07:13:35,797 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-08-29 07:13:35,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:13:35,807 INFO L208 MainTranslator]: Completed translation [2021-08-29 07:13:35,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35 WrapperNode [2021-08-29 07:13:35,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 07:13:35,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 07:13:35,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 07:13:35,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 07:13:35,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,827 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 07:13:35,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 07:13:35,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 07:13:35,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 07:13:35,838 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 07:13:35,865 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 07:13:35,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 07:13:35,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 07:13:35,869 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (1/1) ... [2021-08-29 07:13:35,875 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:13:35,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 07:13:35,892 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) [2021-08-29 07:13:35,896 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 [2021-08-29 07:13:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 07:13:35,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 07:13:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 07:13:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 07:13:36,030 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 07:13:36,031 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 07:13:36,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:36 BoogieIcfgContainer [2021-08-29 07:13:36,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 07:13:36,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 07:13:36,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 07:13:36,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 07:13:36,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:13:35" (1/3) ... [2021-08-29 07:13:36,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184e813a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:36, skipping insertion in model container [2021-08-29 07:13:36,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:35" (2/3) ... [2021-08-29 07:13:36,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@184e813a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:36, skipping insertion in model container [2021-08-29 07:13:36,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:36" (3/3) ... [2021-08-29 07:13:36,039 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-08-29 07:13:36,046 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 07:13:36,046 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 07:13:36,085 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 07:13:36,099 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=FAST_UPR [2021-08-29 07:13:36,099 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 07:13:36,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 07:13:36,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 07:13:36,114 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:13:36,115 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 07:13:36,115 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:13:36,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:13:36,125 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-29 07:13:36,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 07:13:36,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301244529] [2021-08-29 07:13:36,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:13:36,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 07:13:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:13:36,221 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 07:13:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:13:36,262 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 07:13:36,264 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 07:13:36,265 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 07:13:36,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 07:13:36,275 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 07:13:36,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:13:36 BoogieIcfgContainer [2021-08-29 07:13:36,290 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 07:13:36,291 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 07:13:36,292 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 07:13:36,292 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 07:13:36,292 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:36" (3/4) ... [2021-08-29 07:13:36,294 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 07:13:36,295 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 07:13:36,296 INFO L158 Benchmark]: Toolchain (without parser) took 612.04ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 37.2MB in the beginning and 52.3MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:13:36,297 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:13:36,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 123.33ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 27.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 07:13:36,298 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.91ms. Allocated memory is still 58.7MB. Free memory was 27.9MB in the beginning and 26.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 07:13:36,299 INFO L158 Benchmark]: Boogie Preprocessor took 35.98ms. Allocated memory is still 58.7MB. Free memory was 26.4MB in the beginning and 42.0MB in the end (delta: -15.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 07:13:36,302 INFO L158 Benchmark]: RCFGBuilder took 167.80ms. Allocated memory is still 58.7MB. Free memory was 42.0MB in the beginning and 33.9MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 07:13:36,303 INFO L158 Benchmark]: TraceAbstraction took 255.53ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 33.5MB in the beginning and 52.9MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:13:36,303 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 52.6MB in the end (delta: 308.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:13:36,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 58.7MB. Free memory was 40.3MB in the beginning and 40.2MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 123.33ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 27.9MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 18.91ms. Allocated memory is still 58.7MB. Free memory was 27.9MB in the beginning and 26.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.98ms. Allocated memory is still 58.7MB. Free memory was 26.4MB in the beginning and 42.0MB in the end (delta: -15.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 167.80ms. Allocated memory is still 58.7MB. Free memory was 42.0MB in the beginning and 33.9MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 255.53ms. Allocated memory was 58.7MB in the beginning and 73.4MB in the end (delta: 14.7MB). Free memory was 33.5MB in the beginning and 52.9MB in the end (delta: -19.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 52.6MB in the end (delta: 308.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: 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 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 189.87ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.72ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.27ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.18ms SsaConstructionTime, 35.28ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 [2021-08-29 07:13:36,341 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 07:13:37,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 07:13:37,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 07:13:37,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 07:13:37,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 07:13:37,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 07:13:37,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 07:13:37,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 07:13:37,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 07:13:37,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 07:13:37,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 07:13:37,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 07:13:37,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 07:13:37,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 07:13:37,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 07:13:37,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 07:13:37,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 07:13:37,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 07:13:37,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 07:13:37,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 07:13:37,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 07:13:37,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 07:13:37,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 07:13:37,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 07:13:37,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 07:13:37,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 07:13:37,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 07:13:37,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 07:13:37,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 07:13:37,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 07:13:37,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 07:13:37,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 07:13:37,916 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 07:13:37,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 07:13:37,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 07:13:37,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 07:13:37,918 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 07:13:37,918 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 07:13:37,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 07:13:37,919 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 07:13:37,920 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 07:13:37,923 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 07:13:37,948 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 07:13:37,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 07:13:37,950 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 07:13:37,950 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 07:13:37,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 07:13:37,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 07:13:37,951 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 07:13:37,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 07:13:37,952 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 07:13:37,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 07:13:37,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 07:13:37,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 07:13:37,954 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 07:13:37,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 07:13:37,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 07:13:37,954 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 07:13:37,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 07:13:37,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:13:37,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 07:13:37,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 07:13:37,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 07:13:37,962 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 07:13:37,962 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 07:13:37,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 07:13:37,962 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 07:13:37,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 07:13:37,963 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3490f452c75bd943c0f7c3f7fb58032fe6d705c [2021-08-29 07:13:38,193 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 07:13:38,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 07:13:38,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 07:13:38,209 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 07:13:38,209 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 07:13:38,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_float.c [2021-08-29 07:13:38,260 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed44dc23/263432f41fad40b88ff0758e4f09998c/FLAG06e17fdc2 [2021-08-29 07:13:38,627 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 07:13:38,627 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c [2021-08-29 07:13:38,632 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed44dc23/263432f41fad40b88ff0758e4f09998c/FLAG06e17fdc2 [2021-08-29 07:13:38,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ed44dc23/263432f41fad40b88ff0758e4f09998c [2021-08-29 07:13:38,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 07:13:38,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 07:13:38,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 07:13:38,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 07:13:38,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 07:13:38,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50357a86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38, skipping insertion in model container [2021-08-29 07:13:38,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,657 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 07:13:38,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 07:13:38,770 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-08-29 07:13:38,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:13:38,794 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 07:13:38,803 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-08-29 07:13:38,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 07:13:38,816 INFO L208 MainTranslator]: Completed translation [2021-08-29 07:13:38,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38 WrapperNode [2021-08-29 07:13:38,817 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 07:13:38,818 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 07:13:38,818 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 07:13:38,818 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 07:13:38,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 07:13:38,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 07:13:38,873 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 07:13:38,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 07:13:38,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,889 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 07:13:38,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 07:13:38,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 07:13:38,897 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 07:13:38,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (1/1) ... [2021-08-29 07:13:38,902 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 07:13:38,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 07:13:38,916 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) [2021-08-29 07:13:38,919 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 [2021-08-29 07:13:38,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 07:13:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 07:13:38,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 07:13:38,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 07:13:39,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 07:13:39,041 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 07:13:39,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:39 BoogieIcfgContainer [2021-08-29 07:13:39,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 07:13:39,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 07:13:39,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 07:13:39,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 07:13:39,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 07:13:38" (1/3) ... [2021-08-29 07:13:39,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:39, skipping insertion in model container [2021-08-29 07:13:39,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 07:13:38" (2/3) ... [2021-08-29 07:13:39,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a24d0f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 07:13:39, skipping insertion in model container [2021-08-29 07:13:39,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:39" (3/3) ... [2021-08-29 07:13:39,047 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-08-29 07:13:39,054 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 07:13:39,054 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 07:13:39,096 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 07:13:39,103 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=FAST_UPR [2021-08-29 07:13:39,104 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 07:13:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 07:13:39,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 07:13:39,116 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 07:13:39,116 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 07:13:39,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 07:13:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 07:13:39,121 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-29 07:13:39,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 07:13:39,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730713424] [2021-08-29 07:13:39,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 07:13:39,129 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 07:13:39,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 07:13:39,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 07:13:39,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 07:13:39,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:13:39,208 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 07:13:39,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 07:13:39,252 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-29 07:13:39,253 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 07:13:39,254 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 07:13:39,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 07:13:39,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 07:13:39,468 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 07:13:39,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 07:13:39 BoogieIcfgContainer [2021-08-29 07:13:39,487 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 07:13:39,489 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 07:13:39,489 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 07:13:39,489 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 07:13:39,490 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 07:13:39" (3/4) ... [2021-08-29 07:13:39,491 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-29 07:13:39,516 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 07:13:39,516 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 07:13:39,518 INFO L158 Benchmark]: Toolchain (without parser) took 870.23ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 50.4MB in the beginning and 78.9MB in the end (delta: -28.5MB). Peak memory consumption was 225.8kB. Max. memory is 16.1GB. [2021-08-29 07:13:39,519 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:13:39,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.02ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 40.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 07:13:39,520 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.51ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 53.5MB in the end (delta: -12.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 07:13:39,520 INFO L158 Benchmark]: Boogie Preprocessor took 23.88ms. Allocated memory is still 69.2MB. Free memory was 53.5MB in the beginning and 52.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 07:13:39,522 INFO L158 Benchmark]: RCFGBuilder took 145.18ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 44.1MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 07:13:39,524 INFO L158 Benchmark]: TraceAbstraction took 443.95ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 43.5MB in the beginning and 80.1MB in the end (delta: -36.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2021-08-29 07:13:39,525 INFO L158 Benchmark]: Witness Printer took 27.78ms. Allocated memory is still 98.6MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 07:13:39,528 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 50.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.02ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 40.6MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.51ms. Allocated memory is still 69.2MB. Free memory was 40.6MB in the beginning and 53.5MB in the end (delta: -12.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.88ms. Allocated memory is still 69.2MB. Free memory was 53.5MB in the beginning and 52.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 145.18ms. Allocated memory is still 69.2MB. Free memory was 52.2MB in the beginning and 44.1MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 443.95ms. Allocated memory was 69.2MB in the beginning and 98.6MB in the end (delta: 29.4MB). Free memory was 43.5MB in the beginning and 80.1MB in the end (delta: -36.6MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * Witness Printer took 27.78ms. Allocated memory is still 98.6MB. Free memory was 80.1MB in the beginning and 78.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 372.00ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.31ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 6.58ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.30ms SsaConstructionTime, 16.80ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 proved your program to be incorrect! [2021-08-29 07:13:39,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...