./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC --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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC --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 0.2.0-7b2dab5 [2021-10-11 00:28:26,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:26,125 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:26,173 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:26,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:26,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:26,182 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:26,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:26,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:26,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:26,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:26,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:26,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:26,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:26,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:26,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:26,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:26,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:26,213 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:26,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:26,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:26,226 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:26,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:26,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:26,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:26,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:26,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:26,243 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:26,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:26,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:26,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:26,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:26,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:26,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:26,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:26,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:26,254 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:26,254 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:26,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:26,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:26,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:26,259 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:28:26,301 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:26,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:26,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:26,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:26,305 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:26,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:26,305 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:26,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:26,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:26,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:26,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:26,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:26,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:26,308 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:26,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:26,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:26,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:26,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:26,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:26,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:26,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:26,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:26,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:26,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:26,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:26,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:28:26,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:26,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:26,313 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-10-11 00:28:26,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:26,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:26,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:26,678 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:26,679 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:26,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-10-11 00:28:26,763 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/39dedc2a7/fb55e06be21d42f1a81999d87c8beb70/FLAG3a6b0e562 [2021-10-11 00:28:27,279 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:27,280 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/sv-benchmarks/c/float-benchs/nan_double.c [2021-10-11 00:28:27,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/39dedc2a7/fb55e06be21d42f1a81999d87c8beb70/FLAG3a6b0e562 [2021-10-11 00:28:27,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/39dedc2a7/fb55e06be21d42f1a81999d87c8beb70 [2021-10-11 00:28:27,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:27,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:27,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:27,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:27,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:27,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:27" (1/1) ... [2021-10-11 00:28:27,697 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:27, skipping insertion in model container [2021-10-11 00:28:27,698 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:27" (1/1) ... [2021-10-11 00:28:27,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:27,719 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:27,938 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-11 00:28:27,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:27,985 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:27,999 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-11 00:28:28,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:28,017 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:28,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28 WrapperNode [2021-10-11 00:28:28,017 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:28,018 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:28,019 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:28,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:28,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:28,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:28,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:28,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:28,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... [2021-10-11 00:28:28,084 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:28,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:28,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:28,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:28,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:28,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:28,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:28,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:28:28,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:28,436 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:28,436 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 00:28:28,437 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:28 BoogieIcfgContainer [2021-10-11 00:28:28,438 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:28,439 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:28,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:28,444 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:28,445 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:27" (1/3) ... [2021-10-11 00:28:28,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f3fbcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:28, skipping insertion in model container [2021-10-11 00:28:28,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:28" (2/3) ... [2021-10-11 00:28:28,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f3fbcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:28, skipping insertion in model container [2021-10-11 00:28:28,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:28" (3/3) ... [2021-10-11 00:28:28,449 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-10-11 00:28:28,463 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:28,466 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:28:28,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:28:28,517 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:28,517 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:28,517 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:28,517 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:28,518 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:28,518 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:28,518 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:28,518 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 00:28:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:28:28,537 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:28,538 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:28:28,538 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:28,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:28,544 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-11 00:28:28,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:28,560 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879485046] [2021-10-11 00:28:28,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:28,695 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:28,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:28,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:28,759 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:28,760 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:28:28,760 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:28:28,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:28 BoogieIcfgContainer [2021-10-11 00:28:28,784 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:28,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:28,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:28,787 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:28,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:28" (3/4) ... [2021-10-11 00:28:28,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:28:28,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:28,795 INFO L168 Benchmark]: Toolchain (without parser) took 1105.98 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 49.1 MB in the beginning and 64.3 MB in the end (delta: -15.3 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:28,797 INFO L168 Benchmark]: CDTParser took 1.11 ms. Allocated memory is still 83.9 MB. Free memory was 57.4 MB in the beginning and 57.4 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:28,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.29 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 48.9 MB in the beginning and 89.2 MB in the end (delta: -40.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:28,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.88 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 87.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:28,802 INFO L168 Benchmark]: Boogie Preprocessor took 27.11 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 87.0 MB in the end (delta: 797.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:28,803 INFO L168 Benchmark]: RCFGBuilder took 351.97 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 76.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:28,805 INFO L168 Benchmark]: TraceAbstraction took 345.10 ms. Allocated memory is still 113.2 MB. Free memory was 76.2 MB in the beginning and 64.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:28,805 INFO L168 Benchmark]: Witness Printer took 4.67 ms. Allocated memory is still 113.2 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:28,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11 ms. Allocated memory is still 83.9 MB. Free memory was 57.4 MB in the beginning and 57.4 MB in the end (delta: 29.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.29 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 48.9 MB in the beginning and 89.2 MB in the end (delta: -40.3 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.88 ms. Allocated memory is still 113.2 MB. Free memory was 89.2 MB in the beginning and 87.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.11 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 87.0 MB in the end (delta: 797.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 351.97 ms. Allocated memory is still 113.2 MB. Free memory was 87.0 MB in the beginning and 76.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 345.10 ms. Allocated memory is still 113.2 MB. Free memory was 76.2 MB in the beginning and 64.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.67 ms. Allocated memory is still 113.2 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:28:31,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:31,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:31,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:31,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:31,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:31,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:31,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:31,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:31,460 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:31,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:31,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:31,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:31,467 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:31,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:31,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:31,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:31,475 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:31,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:31,488 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:31,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:31,492 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:31,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:31,497 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:31,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:31,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:31,507 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:31,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:31,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:31,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:31,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:31,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:31,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:31,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:31,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:31,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:31,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:31,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:31,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:31,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:31,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:31,521 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:28:31,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:31,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:31,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:31,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:31,563 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:31,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:31,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:31,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:31,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:31,564 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:31,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:31,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:31,566 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:28:31,566 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:28:31,566 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:31,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:31,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:31,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:31,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:31,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:31,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:31,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:31,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:31,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:31,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:31,569 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:28:31,569 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:28:31,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:31,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:31,570 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:28:31,570 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-10-11 00:28:31,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:31,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:31,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:31,986 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:31,987 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:31,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-10-11 00:28:32,047 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/6b8cc587d/1dc46da4732e4f1ca41b66c67f655452/FLAGd48fc778d [2021-10-11 00:28:32,555 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:32,555 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/sv-benchmarks/c/float-benchs/nan_double.c [2021-10-11 00:28:32,562 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/6b8cc587d/1dc46da4732e4f1ca41b66c67f655452/FLAGd48fc778d [2021-10-11 00:28:32,907 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/data/6b8cc587d/1dc46da4732e4f1ca41b66c67f655452 [2021-10-11 00:28:32,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:32,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:32,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:32,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:32,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:32,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:32" (1/1) ... [2021-10-11 00:28:32,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380f99cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:32, skipping insertion in model container [2021-10-11 00:28:32,930 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:32" (1/1) ... [2021-10-11 00:28:32,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:32,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:33,083 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-11 00:28:33,090 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:33,106 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:33,119 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-11 00:28:33,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:33,138 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:33,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33 WrapperNode [2021-10-11 00:28:33,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:33,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:33,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:33,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:33,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,157 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:33,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:33,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:33,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:33,212 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... [2021-10-11 00:28:33,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:33,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:33,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:33,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:33,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:28:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:33,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:33,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:33,611 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-11 00:28:33,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:33 BoogieIcfgContainer [2021-10-11 00:28:33,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:33,631 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:33,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:33,634 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:33,634 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:32" (1/3) ... [2021-10-11 00:28:33,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601abf3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:33, skipping insertion in model container [2021-10-11 00:28:33,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:33" (2/3) ... [2021-10-11 00:28:33,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@601abf3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:33, skipping insertion in model container [2021-10-11 00:28:33,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:33" (3/3) ... [2021-10-11 00:28:33,638 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-10-11 00:28:33,668 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:33,671 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:28:33,682 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:28:33,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:33,712 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:33,712 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:33,713 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:33,713 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:33,713 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:33,713 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:33,714 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:33,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2021-10-11 00:28:33,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-11 00:28:33,734 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:33,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-11 00:28:33,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:33,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:33,743 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-11 00:28:33,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:28:33,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1452748628] [2021-10-11 00:28:33,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 00:28:33,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:33,917 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:33,974 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:34,029 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-11 00:28:34,030 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:28:34,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:28:34,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:34 BoogieIcfgContainer [2021-10-11 00:28:34,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:34,284 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:34,284 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:34,285 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:34,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:33" (3/4) ... [2021-10-11 00:28:34,289 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:28:34,347 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7bb6d474-230d-4b28-8238-39ea998a4556/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:28:34,348 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:34,351 INFO L168 Benchmark]: Toolchain (without parser) took 1436.67 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 53.9 MB in the beginning and 77.1 MB in the end (delta: -23.2 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:34,352 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 71.3 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:34,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.22 ms. Allocated memory is still 71.3 MB. Free memory was 53.7 MB in the beginning and 44.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:34,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.33 ms. Allocated memory is still 71.3 MB. Free memory was 44.0 MB in the beginning and 56.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:34,362 INFO L168 Benchmark]: Boogie Preprocessor took 58.68 ms. Allocated memory is still 71.3 MB. Free memory was 56.5 MB in the beginning and 55.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:34,363 INFO L168 Benchmark]: RCFGBuilder took 385.36 ms. Allocated memory is still 71.3 MB. Free memory was 55.3 MB in the beginning and 44.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:34,364 INFO L168 Benchmark]: TraceAbstraction took 650.59 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 44.2 MB in the beginning and 79.1 MB in the end (delta: -34.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:34,365 INFO L168 Benchmark]: Witness Printer took 64.03 ms. Allocated memory is still 98.6 MB. Free memory was 79.1 MB in the beginning and 77.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:34,377 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 71.3 MB. Free memory is still 53.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 222.22 ms. Allocated memory is still 71.3 MB. Free memory was 53.7 MB in the beginning and 44.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.33 ms. Allocated memory is still 71.3 MB. Free memory was 44.0 MB in the beginning and 56.5 MB in the end (delta: -12.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.68 ms. Allocated memory is still 71.3 MB. Free memory was 56.5 MB in the beginning and 55.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 385.36 ms. Allocated memory is still 71.3 MB. Free memory was 55.3 MB in the beginning and 44.7 MB in the end (delta: 10.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 650.59 ms. Allocated memory was 71.3 MB in the beginning and 98.6 MB in the end (delta: 27.3 MB). Free memory was 44.2 MB in the beginning and 79.1 MB in the end (delta: -34.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.03 ms. Allocated memory is still 98.6 MB. Free memory was 79.1 MB in the beginning and 77.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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! Received shutdown request...