./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt --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_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt --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-4e77c04 [2021-10-13 01:09:01,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:09:01,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:09:01,489 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:09:01,490 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:09:01,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:09:01,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:09:01,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:09:01,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:09:01,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:09:01,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:09:01,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:09:01,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:09:01,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:09:01,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:09:01,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:09:01,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:09:01,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:09:01,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:09:01,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:09:01,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:09:01,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:09:01,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:09:01,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:09:01,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:09:01,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:09:01,556 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:09:01,557 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:09:01,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:09:01,559 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:09:01,559 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:09:01,560 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:09:01,561 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:09:01,562 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:09:01,563 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:09:01,563 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:09:01,563 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:09:01,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:09:01,564 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:09:01,565 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:09:01,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:09:01,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 01:09:01,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:09:01,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:09:01,605 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:09:01,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:09:01,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:09:01,614 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:09:01,614 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:09:01,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:09:01,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:09:01,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:09:01,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:09:01,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:09:01,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:09:01,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:09:01,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:09:01,617 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:09:01,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:09:01,617 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:09:01,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:09:01,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:09:01,618 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:09:01,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:09:01,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:09:01,619 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:09:01,619 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:09:01,619 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:09:01,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:09:01,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 01:09:01,620 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:09:01,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:09:01,621 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_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-10-13 01:09:01,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:09:01,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:09:01,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:09:01,949 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:09:01,950 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:09:01,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-10-13 01:09:02,044 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/f06fc17bf/422d085a833a4c8aa85763fb63e49729/FLAG7928f0d5b [2021-10-13 01:09:02,562 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:09:02,562 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/sv-benchmarks/c/float-benchs/nan_double.c [2021-10-13 01:09:02,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/f06fc17bf/422d085a833a4c8aa85763fb63e49729/FLAG7928f0d5b [2021-10-13 01:09:02,953 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/f06fc17bf/422d085a833a4c8aa85763fb63e49729 [2021-10-13 01:09:02,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:09:02,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:09:02,969 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:09:02,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:09:02,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:09:02,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:02" (1/1) ... [2021-10-13 01:09:02,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7009bac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:02, skipping insertion in model container [2021-10-13 01:09:02,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:02" (1/1) ... [2021-10-13 01:09:02,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:09:02,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:09:03,128 WARN L228 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_ea6bb98e-7039-4e41-9012-41cf373fced5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-13 01:09:03,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:09:03,147 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:09:03,159 WARN L228 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_ea6bb98e-7039-4e41-9012-41cf373fced5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-13 01:09:03,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:09:03,175 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:09:03,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03 WrapperNode [2021-10-13 01:09:03,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:09:03,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:09:03,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:09:03,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:09:03,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:09:03,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:09:03,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:09:03,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:09:03,214 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:09:03,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:09:03,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:09:03,226 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:09:03,227 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (1/1) ... [2021-10-13 01:09:03,234 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:09:03,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:03,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:09:03,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:09:03,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:09:03,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:09:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:09:03,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:09:03,491 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:09:03,491 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 01:09:03,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:03 BoogieIcfgContainer [2021-10-13 01:09:03,493 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:09:03,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:09:03,495 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:09:03,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:09:03,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:09:02" (1/3) ... [2021-10-13 01:09:03,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd6007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:03, skipping insertion in model container [2021-10-13 01:09:03,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:03" (2/3) ... [2021-10-13 01:09:03,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58dd6007 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:03, skipping insertion in model container [2021-10-13 01:09:03,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:03" (3/3) ... [2021-10-13 01:09:03,501 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-10-13 01:09:03,507 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:09:03,507 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:09:03,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:09:03,557 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 [2021-10-13 01:09:03,557 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:09:03,568 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) [2021-10-13 01:09:03,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 01:09:03,573 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:03,574 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 01:09:03,574 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:03,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:03,580 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-13 01:09:03,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:09:03,590 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565727757] [2021-10-13 01:09:03,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:03,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:09:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:03,686 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:09:03,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:03,724 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:09:03,726 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 01:09:03,727 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:09:03,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 01:09:03,736 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:09:03,752 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:09:03 BoogieIcfgContainer [2021-10-13 01:09:03,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:09:03,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:09:03,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:09:03,754 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:09:03,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:03" (3/4) ... [2021-10-13 01:09:03,757 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 01:09:03,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:09:03,760 INFO L168 Benchmark]: Toolchain (without parser) took 802.43 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 33.4 MB in the beginning and 62.8 MB in the end (delta: -29.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:03,760 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:03,761 INFO L168 Benchmark]: CACSL2BoogieTranslator took 207.99 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 33.2 MB in the beginning and 73.4 MB in the end (delta: -40.1 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.27 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 72.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,763 INFO L168 Benchmark]: Boogie Preprocessor took 18.22 ms. Allocated memory is still 100.7 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:03,764 INFO L168 Benchmark]: RCFGBuilder took 267.62 ms. Allocated memory is still 100.7 MB. Free memory was 71.0 MB in the beginning and 76.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,772 INFO L168 Benchmark]: TraceAbstraction took 258.07 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 63.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:03,774 INFO L168 Benchmark]: Witness Printer took 4.49 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 62.8 MB in the end (delta: 159.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:03,782 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 75.5 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 207.99 ms. Allocated memory was 75.5 MB in the beginning and 100.7 MB in the end (delta: 25.2 MB). Free memory was 33.2 MB in the beginning and 73.4 MB in the end (delta: -40.1 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.27 ms. Allocated memory is still 100.7 MB. Free memory was 73.4 MB in the beginning and 72.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.22 ms. Allocated memory is still 100.7 MB. Free memory was 72.0 MB in the beginning and 71.0 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 267.62 ms. Allocated memory is still 100.7 MB. Free memory was 71.0 MB in the beginning and 76.2 MB in the end (delta: -5.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 258.07 ms. Allocated memory is still 100.7 MB. Free memory was 75.8 MB in the beginning and 63.0 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.49 ms. Allocated memory is still 100.7 MB. Free memory was 63.0 MB in the beginning and 62.8 MB in the end (delta: 159.4 kB). There was no memory consumed. 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: 184.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 7.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.0ms, 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: 6.0ms SsaConstructionTime, 36.4ms 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 [2021-10-13 01:09:03,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/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-4e77c04 [2021-10-13 01:09:06,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:09:06,301 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:09:06,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:09:06,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:09:06,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:09:06,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:09:06,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:09:06,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:09:06,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:09:06,345 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:09:06,346 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:09:06,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:09:06,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:09:06,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:09:06,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:09:06,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:09:06,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:09:06,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:09:06,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:09:06,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:09:06,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:09:06,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:09:06,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:09:06,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:09:06,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:09:06,397 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:09:06,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:09:06,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:09:06,401 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:09:06,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:09:06,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:09:06,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:09:06,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:09:06,406 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:09:06,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:09:06,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:09:06,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:09:06,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:09:06,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:09:06,422 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:09:06,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 01:09:06,447 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:09:06,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:09:06,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:09:06,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:09:06,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:09:06,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:09:06,449 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:09:06,450 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:09:06,450 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:09:06,450 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:09:06,450 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:09:06,450 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 01:09:06,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 01:09:06,451 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 01:09:06,451 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 01:09:06,451 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 01:09:06,451 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:09:06,451 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:09:06,452 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:09:06,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 01:09:06,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:09:06,452 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:09:06,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 01:09:06,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:09:06,453 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:09:06,453 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 01:09:06,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 01:09:06,453 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 01:09:06,454 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 01:09:06,454 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 01:09:06,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:09:06,454 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 01:09:06,454 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_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e70fb0031ee54295dcc583b462c02b21fc0481d0 [2021-10-13 01:09:06,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:09:06,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:09:06,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:09:06,846 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:09:06,848 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:09:06,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-10-13 01:09:06,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/6bba4b059/3fdc96e5de604be2a6ee82b0e095f0de/FLAG703fed544 [2021-10-13 01:09:07,431 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:09:07,431 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/sv-benchmarks/c/float-benchs/nan_double.c [2021-10-13 01:09:07,438 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/6bba4b059/3fdc96e5de604be2a6ee82b0e095f0de/FLAG703fed544 [2021-10-13 01:09:07,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/data/6bba4b059/3fdc96e5de604be2a6ee82b0e095f0de [2021-10-13 01:09:07,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:09:07,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:09:07,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:09:07,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:09:07,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:09:07,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:07" (1/1) ... [2021-10-13 01:09:07,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b0e7f22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:07, skipping insertion in model container [2021-10-13 01:09:07,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:09:07" (1/1) ... [2021-10-13 01:09:07,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:09:07,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:09:07,977 WARN L228 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_ea6bb98e-7039-4e41-9012-41cf373fced5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-13 01:09:07,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:09:07,999 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:09:08,016 WARN L228 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_ea6bb98e-7039-4e41-9012-41cf373fced5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-10-13 01:09:08,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:09:08,038 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:09:08,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08 WrapperNode [2021-10-13 01:09:08,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:09:08,041 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:09:08,042 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:09:08,042 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:09:08,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,061 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:09:08,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:09:08,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:09:08,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:09:08,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,121 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,152 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:09:08,153 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:09:08,154 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:09:08,154 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:09:08,155 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (1/1) ... [2021-10-13 01:09:08,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 01:09:08,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:09:08,194 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 01:09:08,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 01:09:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 01:09:08,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:09:08,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:09:08,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:09:08,415 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:09:08,416 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-13 01:09:08,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:08 BoogieIcfgContainer [2021-10-13 01:09:08,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:09:08,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 01:09:08,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 01:09:08,436 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 01:09:08,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:09:07" (1/3) ... [2021-10-13 01:09:08,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5be00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:08, skipping insertion in model container [2021-10-13 01:09:08,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:09:08" (2/3) ... [2021-10-13 01:09:08,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5be00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:09:08, skipping insertion in model container [2021-10-13 01:09:08,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:08" (3/3) ... [2021-10-13 01:09:08,462 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-10-13 01:09:08,468 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 01:09:08,469 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 01:09:08,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 01:09:08,542 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 [2021-10-13 01:09:08,542 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 01:09:08,563 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) [2021-10-13 01:09:08,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 01:09:08,568 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 01:09:08,569 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-13 01:09:08,570 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 01:09:08,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:09:08,576 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-13 01:09:08,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 01:09:08,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097950834] [2021-10-13 01:09:08,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:09:08,589 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 01:09:08,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 01:09:08,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 01:09:08,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 01:09:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:08,714 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:09:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:09:08,811 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-13 01:09:08,813 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 01:09:08,815 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 01:09:08,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-13 01:09:09,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 01:09:09,036 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 01:09:09,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 01:09:09 BoogieIcfgContainer [2021-10-13 01:09:09,053 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 01:09:09,053 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:09:09,054 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:09:09,054 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:09:09,055 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:09:08" (3/4) ... [2021-10-13 01:09:09,056 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 01:09:09,089 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:09:09,089 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:09:09,092 INFO L168 Benchmark]: Toolchain (without parser) took 1284.15 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 36.8 MB in the end (delta: -5.8 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,092 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:09:09,093 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.47 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 34.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.49 ms. Allocated memory is still 54.5 MB. Free memory was 34.5 MB in the beginning and 37.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,095 INFO L168 Benchmark]: Boogie Preprocessor took 66.48 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 36.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,095 INFO L168 Benchmark]: RCFGBuilder took 264.46 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 28.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,096 INFO L168 Benchmark]: TraceAbstraction took 619.47 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 38.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,097 INFO L168 Benchmark]: Witness Printer took 36.15 ms. Allocated memory is still 67.1 MB. Free memory was 38.3 MB in the beginning and 36.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:09:09,101 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 34.4 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.47 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 34.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.49 ms. Allocated memory is still 54.5 MB. Free memory was 34.5 MB in the beginning and 37.8 MB in the end (delta: -3.4 MB). Peak memory consumption was 4.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.48 ms. Allocated memory is still 54.5 MB. Free memory was 37.8 MB in the beginning and 36.8 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 264.46 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 28.0 MB in the end (delta: 8.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 619.47 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 38.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 36.15 ms. Allocated memory is still 67.1 MB. Free memory was 38.3 MB in the beginning and 36.8 MB in the end (delta: 1.5 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: 504.8ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 14.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.7ms, 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: 19.4ms SsaConstructionTime, 38.8ms 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! [2021-10-13 01:09:09,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea6bb98e-7039-4e41-9012-41cf373fced5/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...