./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL --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 a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:26:33,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:26:33,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:26:33,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:26:33,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:26:33,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:26:33,078 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:26:33,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:26:33,085 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:26:33,091 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:26:33,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:26:33,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:26:33,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:26:33,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:26:33,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:26:33,102 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:26:33,103 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:26:33,104 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:26:33,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:26:33,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:26:33,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:26:33,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:26:33,114 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:26:33,115 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:26:33,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:26:33,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:26:33,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:26:33,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:26:33,122 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:26:33,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:26:33,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:26:33,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:26:33,125 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:26:33,126 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:26:33,128 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:26:33,128 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:26:33,129 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:26:33,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:26:33,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:26:33,130 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:26:33,131 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:26:33,132 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:26:33,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:26:33,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:26:33,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:26:33,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:26:33,160 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:26:33,160 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:26:33,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:26:33,161 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:26:33,161 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:26:33,161 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:26:33,161 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:26:33,162 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:26:33,162 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:26:33,162 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:26:33,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:26:33,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:26:33,163 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:26:33,163 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:26:33,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:26:33,163 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:26:33,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:26:33,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:26:33,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:26:33,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:26:33,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:26:33,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:26:33,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:26:33,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:26:33,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:26:33,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:26:33,165 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:26:33,166 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:26:33,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:26:33,166 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:26:33,166 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_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-11-19 05:26:33,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:26:33,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:26:33,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:26:33,469 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:26:33,470 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:26:33,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-11-19 05:26:33,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/a51f092c6/c388cb78d3174abeb0a9ba9f045ced2e/FLAGcd01a1ec3 [2021-11-19 05:26:34,033 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:26:34,034 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/sv-benchmarks/c/float-benchs/nan_double.c [2021-11-19 05:26:34,040 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/a51f092c6/c388cb78d3174abeb0a9ba9f045ced2e/FLAGcd01a1ec3 [2021-11-19 05:26:34,414 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/a51f092c6/c388cb78d3174abeb0a9ba9f045ced2e [2021-11-19 05:26:34,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:26:34,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:26:34,420 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:26:34,420 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:26:34,424 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:26:34,425 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6970ce16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34, skipping insertion in model container [2021-11-19 05:26:34,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:26:34,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:26:34,617 WARN L230 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_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-19 05:26:34,631 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:26:34,639 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:26:34,651 WARN L230 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_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-19 05:26:34,653 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:26:34,666 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:26:34,667 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34 WrapperNode [2021-11-19 05:26:34,667 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:26:34,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:26:34,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:26:34,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:26:34,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,683 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,700 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-11-19 05:26:34,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:26:34,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:26:34,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:26:34,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:26:34,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,715 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,719 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:26:34,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:26:34,720 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:26:34,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:26:34,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (1/1) ... [2021-11-19 05:26:34,729 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:26:34,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:26:34,768 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:26:34,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:26:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:26:34,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:26:34,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:26:34,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:26:34,874 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:26:34,876 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:26:34,993 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:26:34,999 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:26:34,999 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:26:35,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:26:35 BoogieIcfgContainer [2021-11-19 05:26:35,002 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:26:35,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:26:35,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:26:35,011 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:26:35,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:26:34" (1/3) ... [2021-11-19 05:26:35,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0a8381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:26:35, skipping insertion in model container [2021-11-19 05:26:35,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:34" (2/3) ... [2021-11-19 05:26:35,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0a8381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:26:35, skipping insertion in model container [2021-11-19 05:26:35,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:26:35" (3/3) ... [2021-11-19 05:26:35,015 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-11-19 05:26:35,026 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:26:35,026 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:26:35,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:26:35,107 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-11-19 05:26:35,108 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:26:35,123 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) [2021-11-19 05:26:35,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 05:26:35,141 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:26:35,142 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 05:26:35,142 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:26:35,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:26:35,155 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-11-19 05:26:35,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:26:35,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935580553] [2021-11-19 05:26:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:26:35,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:26:35,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:26:35,269 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:26:35,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:26:35,306 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:26:35,308 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:26:35,309 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:26:35,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:26:35,316 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 05:26:35,319 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:26:35,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:26:35 BoogieIcfgContainer [2021-11-19 05:26:35,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:26:35,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:26:35,347 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:26:35,347 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:26:35,348 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:26:35" (3/4) ... [2021-11-19 05:26:35,351 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:26:35,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:26:35,353 INFO L158 Benchmark]: Toolchain (without parser) took 933.66ms. Allocated memory is still 115.3MB. Free memory was 77.0MB in the beginning and 66.0MB in the end (delta: 11.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-19 05:26:35,354 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 93.3MB in the beginning and 93.2MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:35,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 247.76ms. Allocated memory is still 115.3MB. Free memory was 76.9MB in the beginning and 89.6MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:26:35,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.54ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 88.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:26:35,357 INFO L158 Benchmark]: Boogie Preprocessor took 17.65ms. Allocated memory is still 115.3MB. Free memory was 88.1MB in the beginning and 87.1MB in the end (delta: 973.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:35,362 INFO L158 Benchmark]: RCFGBuilder took 282.18ms. Allocated memory is still 115.3MB. Free memory was 87.1MB in the beginning and 78.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:26:35,363 INFO L158 Benchmark]: TraceAbstraction took 337.17ms. Allocated memory is still 115.3MB. Free memory was 78.6MB in the beginning and 66.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:26:35,365 INFO L158 Benchmark]: Witness Printer took 4.84ms. Allocated memory is still 115.3MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:35,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 115.3MB. Free memory was 93.3MB in the beginning and 93.2MB in the end (delta: 119.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 247.76ms. Allocated memory is still 115.3MB. Free memory was 76.9MB in the beginning and 89.6MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.54ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 88.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.65ms. Allocated memory is still 115.3MB. Free memory was 88.1MB in the beginning and 87.1MB in the end (delta: 973.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 282.18ms. Allocated memory is still 115.3MB. Free memory was 87.1MB in the beginning and 78.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 337.17ms. Allocated memory is still 115.3MB. Free memory was 78.6MB in the beginning and 66.1MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.84ms. Allocated memory is still 115.3MB. Free memory is still 66.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s 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 [2021-11-19 05:26:35,431 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL --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 a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:26:37,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:26:37,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:26:37,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:26:37,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:26:37,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:26:37,869 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:26:37,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:26:37,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:26:37,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:26:37,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:26:37,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:26:37,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:26:37,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:26:37,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:26:37,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:26:37,900 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:26:37,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:26:37,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:26:37,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:26:37,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:26:37,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:26:37,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:26:37,919 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:26:37,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:26:37,929 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:26:37,930 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:26:37,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:26:37,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:26:37,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:26:37,934 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:26:37,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:26:37,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:26:37,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:26:37,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:26:37,940 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:26:37,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:26:37,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:26:37,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:26:37,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:26:37,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:26:37,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 05:26:37,993 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:26:37,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:26:37,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:26:37,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:26:37,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:26:37,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:26:37,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:26:37,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:26:37,999 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:26:37,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:26:38,000 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:26:38,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:26:38,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:26:38,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:26:38,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:26:38,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:26:38,003 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:26:38,003 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:26:38,003 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:26:38,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:26:38,004 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:26:38,004 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:26:38,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:26:38,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:26:38,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:26:38,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:26:38,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:26:38,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:26:38,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:26:38,007 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:26:38,007 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:26:38,008 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:26:38,008 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:26:38,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:26:38,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:26:38,009 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:26:38,010 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_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-11-19 05:26:38,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:26:38,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:26:38,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:26:38,411 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:26:38,411 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:26:38,413 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-11-19 05:26:38,480 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/a416b372a/79730651d1a4475aada5d082399b71e3/FLAGe6b64e13c [2021-11-19 05:26:38,962 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:26:38,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/sv-benchmarks/c/float-benchs/nan_double.c [2021-11-19 05:26:38,969 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/a416b372a/79730651d1a4475aada5d082399b71e3/FLAGe6b64e13c [2021-11-19 05:26:39,352 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/data/a416b372a/79730651d1a4475aada5d082399b71e3 [2021-11-19 05:26:39,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:26:39,359 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:26:39,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:26:39,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:26:39,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:26:39,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,372 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ccefae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39, skipping insertion in model container [2021-11-19 05:26:39,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:26:39,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:26:39,583 WARN L230 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_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-19 05:26:39,599 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:26:39,624 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:26:39,638 WARN L230 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_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-11-19 05:26:39,641 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:26:39,658 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:26:39,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39 WrapperNode [2021-11-19 05:26:39,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:26:39,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:26:39,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:26:39,686 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:26:39,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,735 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2021-11-19 05:26:39,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:26:39,736 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:26:39,736 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:26:39,737 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:26:39,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,773 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,784 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:26:39,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:26:39,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:26:39,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:26:39,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (1/1) ... [2021-11-19 05:26:39,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:26:39,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:26:39,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:26:39,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:26:39,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:26:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 05:26:39,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:26:39,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:26:39,954 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:26:39,956 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:26:40,046 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:26:40,052 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:26:40,052 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:26:40,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:26:40 BoogieIcfgContainer [2021-11-19 05:26:40,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:26:40,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:26:40,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:26:40,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:26:40,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:26:39" (1/3) ... [2021-11-19 05:26:40,062 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db4bc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:26:40, skipping insertion in model container [2021-11-19 05:26:40,062 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:26:39" (2/3) ... [2021-11-19 05:26:40,063 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db4bc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:26:40, skipping insertion in model container [2021-11-19 05:26:40,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:26:40" (3/3) ... [2021-11-19 05:26:40,065 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-11-19 05:26:40,070 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:26:40,071 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:26:40,134 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:26:40,146 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-11-19 05:26:40,146 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:26:40,160 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) [2021-11-19 05:26:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 05:26:40,166 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:26:40,167 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 05:26:40,167 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:26:40,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:26:40,177 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-11-19 05:26:40,187 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:26:40,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [747637915] [2021-11-19 05:26:40,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:26:40,189 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:26:40,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:26:40,195 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:26:40,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:26:40,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:26:40,248 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:26:40,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:26:40,291 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-19 05:26:40,303 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:26:40,304 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:26:40,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:26:40,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:26:40,523 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 05:26:40,526 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:26:40,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:26:40 BoogieIcfgContainer [2021-11-19 05:26:40,563 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:26:40,565 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:26:40,565 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:26:40,565 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:26:40,565 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:26:40" (3/4) ... [2021-11-19 05:26:40,567 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 05:26:40,620 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:26:40,621 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:26:40,622 INFO L158 Benchmark]: Toolchain (without parser) took 1262.57ms. Allocated memory is still 73.4MB. Free memory was 51.7MB in the beginning and 54.8MB in the end (delta: -3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:40,623 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 52.4MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:40,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 295.92ms. Allocated memory is still 73.4MB. Free memory was 51.6MB in the beginning and 41.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:26:40,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.94ms. Allocated memory is still 73.4MB. Free memory was 58.2MB in the beginning and 56.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:26:40,629 INFO L158 Benchmark]: Boogie Preprocessor took 48.99ms. Allocated memory is still 73.4MB. Free memory was 56.9MB in the beginning and 56.0MB in the end (delta: 917.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:40,633 INFO L158 Benchmark]: RCFGBuilder took 269.43ms. Allocated memory is still 73.4MB. Free memory was 55.8MB in the beginning and 48.3MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 05:26:40,634 INFO L158 Benchmark]: TraceAbstraction took 506.26ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 56.2MB in the end (delta: -8.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2021-11-19 05:26:40,636 INFO L158 Benchmark]: Witness Printer took 55.97ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:26:40,641 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 52.4MB. Free memory was 33.3MB in the beginning and 33.3MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 295.92ms. Allocated memory is still 73.4MB. Free memory was 51.6MB in the beginning and 41.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.94ms. Allocated memory is still 73.4MB. Free memory was 58.2MB in the beginning and 56.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.99ms. Allocated memory is still 73.4MB. Free memory was 56.9MB in the beginning and 56.0MB in the end (delta: 917.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 269.43ms. Allocated memory is still 73.4MB. Free memory was 55.8MB in the beginning and 48.3MB in the end (delta: 7.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 506.26ms. Allocated memory is still 73.4MB. Free memory was 47.8MB in the beginning and 56.2MB in the end (delta: -8.4MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Witness Printer took 55.97ms. Allocated memory is still 73.4MB. Free memory was 56.2MB in the beginning and 54.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s 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! [2021-11-19 05:26:40,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bcc4f7d9-4ef5-455c-8048-c63483e06fe5/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE