./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/nan_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_double.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 e70fb0031ee54295dcc583b462c02b21fc0481d0 ........................................................................................................................................................................................................................................ 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_double.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 e70fb0031ee54295dcc583b462c02b21fc0481d0 ........................................................................................................................................................................................................................................... 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-dev-20ed64e [2021-08-26 00:41:40,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:41:40,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:41:40,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:41:40,616 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:41:40,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:41:40,622 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:41:40,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:41:40,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:41:40,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:41:40,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:41:40,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:41:40,640 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:41:40,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:41:40,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:41:40,647 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:41:40,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:41:40,648 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:41:40,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:41:40,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:41:40,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:41:40,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:41:40,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:41:40,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:41:40,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:41:40,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:41:40,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:41:40,681 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:41:40,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:41:40,682 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:41:40,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:41:40,683 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:41:40,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:41:40,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:41:40,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:41:40,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:41:40,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:41:40,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:41:40,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:41:40,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:41:40,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:41:40,691 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 00:41:40,727 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:41:40,727 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:41:40,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:41:40,729 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:41:40,730 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:41:40,731 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:41:40,731 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:41:40,731 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:41:40,731 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:41:40,732 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 00:41:40,732 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:41:40,732 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:41:40,733 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:41:40,733 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:41:40,733 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:41:40,733 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:41:40,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:41:40,734 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:41:40,734 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:41:40,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:41:40,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:41:40,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:41:40,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:40,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:41:40,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:41:40,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:41:40,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 00:41:40,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 00:41:40,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:41:40,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:41:40,736 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-08-26 00:41:41,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:41:41,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:41:41,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:41:41,082 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:41:41,082 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:41:41,083 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2021-08-26 00:41:41,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e30adcc/9fa4a57e7b474b139819caf7f94bf3fa/FLAGdf54c390f [2021-08-26 00:41:41,561 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:41:41,561 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2021-08-26 00:41:41,567 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e30adcc/9fa4a57e7b474b139819caf7f94bf3fa/FLAGdf54c390f [2021-08-26 00:41:41,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6e30adcc/9fa4a57e7b474b139819caf7f94bf3fa [2021-08-26 00:41:41,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:41:41,992 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:41:41,995 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:41,995 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:41:41,998 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:41:41,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:41" (1/1) ... [2021-08-26 00:41:42,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1de48f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42, skipping insertion in model container [2021-08-26 00:41:42,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:41" (1/1) ... [2021-08-26 00:41:42,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:41:42,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:41:42,153 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_double.c[434,447] [2021-08-26 00:41:42,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:42,171 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:41:42,181 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_double.c[434,447] [2021-08-26 00:41:42,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:42,193 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:41:42,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42 WrapperNode [2021-08-26 00:41:42,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:42,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:42,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:41:42,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:41:42,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:42,251 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:41:42,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:41:42,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:41:42,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:41:42,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:41:42,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:41:42,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:41:42,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (1/1) ... [2021-08-26 00:41:42,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:42,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:41:42,306 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) [2021-08-26 00:41:42,337 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 [2021-08-26 00:41:42,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:41:42,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:41:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 00:41:42,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:41:42,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:41:42,574 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-26 00:41:42,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:42 BoogieIcfgContainer [2021-08-26 00:41:42,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:41:42,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:41:42,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:41:42,582 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:41:42,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:41:41" (1/3) ... [2021-08-26 00:41:42,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a48a728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:41:42, skipping insertion in model container [2021-08-26 00:41:42,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:42" (2/3) ... [2021-08-26 00:41:42,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a48a728 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:41:42, skipping insertion in model container [2021-08-26 00:41:42,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:42" (3/3) ... [2021-08-26 00:41:42,585 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-08-26 00:41:42,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:41:42,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:41:42,627 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:41:42,633 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 [2021-08-26 00:41:42,634 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:41:42,645 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) [2021-08-26 00:41:42,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:41:42,649 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:41:42,649 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:41:42,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:41:42,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:41:42,655 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-26 00:41:42,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 00:41:42,662 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200482927] [2021-08-26 00:41:42,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:41:42,663 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 00:41:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:41:42,750 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:41:42,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:41:42,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 00:41:42,780 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:41:42,781 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:41:42,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 00:41:42,788 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:41:42,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:41:42 BoogieIcfgContainer [2021-08-26 00:41:42,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:41:42,803 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:41:42,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:41:42,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:41:42,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:42" (3/4) ... [2021-08-26 00:41:42,806 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 00:41:42,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:41:42,808 INFO L168 Benchmark]: Toolchain (without parser) took 815.35 ms. Allocated memory is still 62.9 MB. Free memory was 43.2 MB in the beginning and 41.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:42,808 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:42,809 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.89 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 33.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:42,809 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.17 ms. Allocated memory is still 62.9 MB. Free memory was 33.8 MB in the beginning and 46.5 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:42,810 INFO L168 Benchmark]: Boogie Preprocessor took 25.25 ms. Allocated memory is still 62.9 MB. Free memory was 46.5 MB in the beginning and 45.6 MB in the end (delta: 908.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:42,810 INFO L168 Benchmark]: RCFGBuilder took 298.07 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 35.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:42,811 INFO L168 Benchmark]: TraceAbstraction took 223.00 ms. Allocated memory is still 62.9 MB. Free memory was 34.9 MB in the beginning and 41.4 MB in the end (delta: -6.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:42,811 INFO L168 Benchmark]: Witness Printer took 3.53 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 41.0 MB in the end (delta: 416.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:42,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 62.9 MB. Free memory was 43.7 MB in the beginning and 43.7 MB in the end (delta: 29.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 198.89 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 33.9 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.17 ms. Allocated memory is still 62.9 MB. Free memory was 33.8 MB in the beginning and 46.5 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.25 ms. Allocated memory is still 62.9 MB. Free memory was 46.5 MB in the beginning and 45.6 MB in the end (delta: 908.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 298.07 ms. Allocated memory is still 62.9 MB. Free memory was 45.6 MB in the beginning and 35.3 MB in the end (delta: 10.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 223.00 ms. Allocated memory is still 62.9 MB. Free memory was 34.9 MB in the beginning and 41.4 MB in the end (delta: -6.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.53 ms. Allocated memory is still 62.9 MB. Free memory was 41.4 MB in the beginning and 41.0 MB in the end (delta: 416.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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 someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [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: 161.6ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 6.4ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.3ms SsaConstructionTime, 35.3ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-08-26 00:41:42,855 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 00:41:44,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 00:41:44,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 00:41:44,766 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 00:41:44,768 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 00:41:44,772 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 00:41:44,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 00:41:44,778 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 00:41:44,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 00:41:44,784 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 00:41:44,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 00:41:44,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 00:41:44,790 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 00:41:44,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 00:41:44,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 00:41:44,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 00:41:44,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 00:41:44,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 00:41:44,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 00:41:44,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 00:41:44,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 00:41:44,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 00:41:44,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 00:41:44,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 00:41:44,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 00:41:44,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 00:41:44,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 00:41:44,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 00:41:44,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 00:41:44,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 00:41:44,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 00:41:44,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 00:41:44,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 00:41:44,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 00:41:44,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 00:41:44,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 00:41:44,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 00:41:44,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 00:41:44,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 00:41:44,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 00:41:44,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 00:41:44,825 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 00:41:44,848 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 00:41:44,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 00:41:44,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 00:41:44,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 00:41:44,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 00:41:44,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 00:41:44,856 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 00:41:44,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 00:41:44,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 00:41:44,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 00:41:44,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 00:41:44,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 00:41:44,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 00:41:44,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 00:41:44,858 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 00:41:44,858 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 00:41:44,858 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 00:41:44,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 00:41:44,858 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 00:41:44,858 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 00:41:44,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 00:41:44,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 00:41:44,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 00:41:44,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:44,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 00:41:44,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 00:41:44,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 00:41:44,860 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 00:41:44,860 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 00:41:44,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 00:41:44,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 00:41:44,861 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 00:41:44,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-08-26 00:41:45,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 00:41:45,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 00:41:45,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 00:41:45,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 00:41:45,206 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 00:41:45,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/nan_double.c [2021-08-26 00:41:45,275 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4584dba65/40b68589a4044ab1bb99b980d6594a36/FLAG0a23758cc [2021-08-26 00:41:45,768 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 00:41:45,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/nan_double.c [2021-08-26 00:41:45,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4584dba65/40b68589a4044ab1bb99b980d6594a36/FLAG0a23758cc [2021-08-26 00:41:46,264 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4584dba65/40b68589a4044ab1bb99b980d6594a36 [2021-08-26 00:41:46,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 00:41:46,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 00:41:46,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:46,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 00:41:46,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 00:41:46,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a31520e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46, skipping insertion in model container [2021-08-26 00:41:46,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,281 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 00:41:46,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 00:41:46,412 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_double.c[434,447] [2021-08-26 00:41:46,418 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:46,428 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 00:41:46,437 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_double.c[434,447] [2021-08-26 00:41:46,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 00:41:46,450 INFO L208 MainTranslator]: Completed translation [2021-08-26 00:41:46,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46 WrapperNode [2021-08-26 00:41:46,451 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 00:41:46,452 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:46,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 00:41:46,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 00:41:46,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 00:41:46,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 00:41:46,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 00:41:46,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 00:41:46,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,489 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,494 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,499 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 00:41:46,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 00:41:46,500 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 00:41:46,500 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 00:41:46,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (1/1) ... [2021-08-26 00:41:46,506 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 00:41:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 00:41:46,543 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) [2021-08-26 00:41:46,561 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 [2021-08-26 00:41:46,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 00:41:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 00:41:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 00:41:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 00:41:46,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 00:41:46,778 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-26 00:41:46,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:46 BoogieIcfgContainer [2021-08-26 00:41:46,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 00:41:46,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 00:41:46,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 00:41:46,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 00:41:46,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 12:41:46" (1/3) ... [2021-08-26 00:41:46,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7a07bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:41:46, skipping insertion in model container [2021-08-26 00:41:46,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 12:41:46" (2/3) ... [2021-08-26 00:41:46,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d7a07bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 12:41:46, skipping insertion in model container [2021-08-26 00:41:46,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:46" (3/3) ... [2021-08-26 00:41:46,786 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-08-26 00:41:46,791 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 00:41:46,792 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 00:41:46,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 00:41:46,851 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 [2021-08-26 00:41:46,852 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 00:41:46,863 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) [2021-08-26 00:41:46,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-26 00:41:46,866 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 00:41:46,867 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-26 00:41:46,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 00:41:46,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 00:41:46,884 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-26 00:41:46,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 00:41:46,895 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [39143844] [2021-08-26 00:41:46,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 00:41:46,896 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 00:41:46,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 00:41:46,929 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) [2021-08-26 00:41:46,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 00:41:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:41:47,032 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 00:41:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 00:41:47,111 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-26 00:41:47,115 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 00:41:47,116 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 00:41:47,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 00:41:47,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 00:41:47,337 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 00:41:47,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 12:41:47 BoogieIcfgContainer [2021-08-26 00:41:47,356 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 00:41:47,358 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 00:41:47,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 00:41:47,359 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 00:41:47,360 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 12:41:46" (3/4) ... [2021-08-26 00:41:47,362 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-26 00:41:47,391 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 00:41:47,392 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 00:41:47,398 INFO L168 Benchmark]: Toolchain (without parser) took 1125.54 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.8 MB in the beginning and 41.4 MB in the end (delta: -11.6 MB). Peak memory consumption was 769.6 kB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,398 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 00:41:47,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.61 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 33.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.01 ms. Allocated memory is still 52.4 MB. Free memory was 33.6 MB in the beginning and 32.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,401 INFO L168 Benchmark]: Boogie Preprocessor took 18.81 ms. Allocated memory is still 52.4 MB. Free memory was 32.1 MB in the beginning and 31.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,401 INFO L168 Benchmark]: RCFGBuilder took 280.08 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.0 MB in the beginning and 41.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,404 INFO L168 Benchmark]: TraceAbstraction took 575.50 ms. Allocated memory is still 62.9 MB. Free memory was 41.5 MB in the beginning and 42.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,404 INFO L168 Benchmark]: Witness Printer took 34.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 41.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 00:41:47,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.8 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 182.61 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 33.6 MB in the end (delta: -4.0 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.01 ms. Allocated memory is still 52.4 MB. Free memory was 33.6 MB in the beginning and 32.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.81 ms. Allocated memory is still 52.4 MB. Free memory was 32.1 MB in the beginning and 31.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 280.08 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 31.0 MB in the beginning and 41.9 MB in the end (delta: -10.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 575.50 ms. Allocated memory is still 62.9 MB. Free memory was 41.5 MB in the beginning and 42.9 MB in the end (delta: -1.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Witness Printer took 34.11 ms. Allocated memory is still 62.9 MB. Free memory was 42.9 MB in the beginning and 41.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms 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] double x; [L13] x = __VERIFIER_nondet_double() [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: 488.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.8ms SsaConstructionTime, 29.0ms SatisfiabilityAnalysisTime, 0.0ms 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! [2021-08-26 00:41:47,451 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...