./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float_range.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:36:20,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:36:20,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:36:20,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:36:20,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:36:20,848 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:36:20,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:36:20,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:36:20,858 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:36:20,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:36:20,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:36:20,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:36:20,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:36:20,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:36:20,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:36:20,876 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:36:20,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:36:20,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:36:20,881 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:36:20,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:36:20,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:36:20,893 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:36:20,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:36:20,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:36:20,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:36:20,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:36:20,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:36:20,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:36:20,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:36:20,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:36:20,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:36:20,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:36:20,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:36:20,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:36:20,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:36:20,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:36:20,923 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:36:20,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:36:20,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:36:20,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:36:20,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:36:20,926 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:36:20,971 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:36:20,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:36:20,972 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:36:20,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:36:20,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:36:20,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:36:20,974 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:36:20,975 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:36:20,975 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:36:20,975 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:36:20,976 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:36:20,976 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:36:20,977 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:36:20,977 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:36:20,977 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:36:20,977 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:36:20,978 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:36:20,978 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:36:20,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:36:20,979 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:36:20,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:36:20,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:36:20,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:36:20,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:36:20,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:36:20,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:36:20,982 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:36:20,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:36:20,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:36:20,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:36:20,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:36:20,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:36:20,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:36:20,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:36:20,984 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:36:20,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:36:20,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:36:20,985 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:36:20,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:36:20,986 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:36:20,986 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:36:20,986 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_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 [2022-11-19 07:36:21,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:36:21,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:36:21,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:36:21,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:36:21,341 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:36:21,343 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2022-11-19 07:36:21,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/805dea95f/2739afa53a924fbb99dc51afb006c295/FLAG1a1e9c48e [2022-11-19 07:36:21,883 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:36:21,884 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/sv-benchmarks/c/float-benchs/nan_float_range.c [2022-11-19 07:36:21,891 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/805dea95f/2739afa53a924fbb99dc51afb006c295/FLAG1a1e9c48e [2022-11-19 07:36:22,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/805dea95f/2739afa53a924fbb99dc51afb006c295 [2022-11-19 07:36:22,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:36:22,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:36:22,292 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:36:22,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:36:22,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:36:22,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d2a22b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22, skipping insertion in model container [2022-11-19 07:36:22,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:36:22,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:36:22,563 WARN L234 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_1b0978c2-ba14-4662-ba96-2099669ce53d/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2022-11-19 07:36:22,574 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:36:22,588 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:36:22,602 WARN L234 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_1b0978c2-ba14-4662-ba96-2099669ce53d/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2022-11-19 07:36:22,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:36:22,617 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:36:22,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22 WrapperNode [2022-11-19 07:36:22,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:36:22,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:36:22,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:36:22,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:36:22,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,634 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,651 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2022-11-19 07:36:22,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:36:22,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:36:22,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:36:22,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:36:22,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,683 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,684 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:36:22,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:36:22,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:36:22,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:36:22,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (1/1) ... [2022-11-19 07:36:22,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:36:22,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:22,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:36:22,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:36:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:36:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:36:22,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:36:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:36:22,864 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:36:22,867 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:36:23,005 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:36:23,033 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:36:23,033 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:36:23,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:23 BoogieIcfgContainer [2022-11-19 07:36:23,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:36:23,038 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:36:23,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:36:23,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:36:23,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:22" (1/3) ... [2022-11-19 07:36:23,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb2b0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:23, skipping insertion in model container [2022-11-19 07:36:23,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:22" (2/3) ... [2022-11-19 07:36:23,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb2b0d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:23, skipping insertion in model container [2022-11-19 07:36:23,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:23" (3/3) ... [2022-11-19 07:36:23,052 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2022-11-19 07:36:23,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:36:23,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:36:23,133 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:36:23,141 INFO L357 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3984122d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:36:23,141 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:36:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.5) internal successors, (9), 7 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) [2022-11-19 07:36:23,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:36:23,153 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:23,154 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:36:23,154 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:23,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:23,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1673359, now seen corresponding path program 1 times [2022-11-19 07:36:23,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:36:23,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659722951] [2022-11-19 07:36:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:23,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:36:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:36:23,272 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 07:36:23,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 07:36:23,302 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 07:36:23,304 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 07:36:23,306 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:36:23,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:36:23,313 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:36:23,318 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:36:23,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:36:23 BoogieIcfgContainer [2022-11-19 07:36:23,338 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:36:23,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:36:23,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:36:23,339 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:36:23,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:23" (3/4) ... [2022-11-19 07:36:23,343 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 07:36:23,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:36:23,344 INFO L158 Benchmark]: Toolchain (without parser) took 1055.46ms. Allocated memory is still 144.7MB. Free memory was 113.3MB in the beginning and 95.7MB in the end (delta: 17.6MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-19 07:36:23,345 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:36:23,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.96ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 121.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:36:23,346 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.92ms. Allocated memory is still 144.7MB. Free memory was 121.7MB in the beginning and 120.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:36:23,347 INFO L158 Benchmark]: Boogie Preprocessor took 33.88ms. Allocated memory is still 144.7MB. Free memory was 120.1MB in the beginning and 119.3MB in the end (delta: 754.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:36:23,348 INFO L158 Benchmark]: RCFGBuilder took 348.53ms. Allocated memory is still 144.7MB. Free memory was 119.3MB in the beginning and 109.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:36:23,348 INFO L158 Benchmark]: TraceAbstraction took 299.35ms. Allocated memory is still 144.7MB. Free memory was 108.9MB in the beginning and 96.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 07:36:23,349 INFO L158 Benchmark]: Witness Printer took 4.85ms. Allocated memory is still 144.7MB. Free memory was 96.1MB in the beginning and 95.7MB in the end (delta: 381.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:36:23,353 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 94.4MB. Free memory was 49.0MB in the beginning and 48.9MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.96ms. Allocated memory is still 144.7MB. Free memory was 113.0MB in the beginning and 121.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.92ms. Allocated memory is still 144.7MB. Free memory was 121.7MB in the beginning and 120.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.88ms. Allocated memory is still 144.7MB. Free memory was 120.1MB in the beginning and 119.3MB in the end (delta: 754.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 348.53ms. Allocated memory is still 144.7MB. Free memory was 119.3MB in the beginning and 109.6MB in the end (delta: 9.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 299.35ms. Allocated memory is still 144.7MB. Free memory was 108.9MB in the beginning and 96.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.85ms. Allocated memory is still 144.7MB. Free memory was 96.1MB in the beginning and 95.7MB in the end (delta: 381.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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 someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L15] COND TRUE x >= -1e10 && x <= 1e10 [L16] 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, 8 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, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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 [2022-11-19 07:36:23,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float_range.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:36:25,830 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:36:25,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:36:25,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:36:25,860 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:36:25,861 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:36:25,863 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:36:25,865 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:36:25,866 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:36:25,867 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:36:25,868 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:36:25,869 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:36:25,870 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:36:25,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:36:25,872 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:36:25,873 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:36:25,874 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:36:25,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:36:25,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:36:25,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:36:25,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:36:25,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:36:25,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:36:25,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:36:25,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:36:25,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:36:25,894 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:36:25,895 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:36:25,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:36:25,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:36:25,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:36:25,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:36:25,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:36:25,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:36:25,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:36:25,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:36:25,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:36:25,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:36:25,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:36:25,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:36:25,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:36:25,918 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 07:36:25,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:36:25,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:36:25,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:36:25,986 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:36:25,987 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:36:25,987 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:36:25,988 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:36:25,988 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:36:25,988 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:36:25,988 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:36:25,989 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:36:25,990 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:36:25,992 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:36:25,992 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:36:25,993 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:36:25,993 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:36:25,993 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:36:25,993 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:36:25,993 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:36:25,994 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:36:25,994 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:36:25,994 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:36:25,994 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:36:25,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:36:25,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:36:25,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:36:25,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:36:25,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:36:25,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:36:25,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:36:25,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:36:25,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:36:25,997 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:36:25,997 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:36:25,998 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:36:25,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:36:25,998 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:36:25,999 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:36:25,999 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_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee2a153dfaee3b2943eb2b8eaec5e19c9c4ddd538a99937424544e93fd7e00e2 [2022-11-19 07:36:26,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:36:26,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:36:26,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:36:26,436 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:36:26,438 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:36:26,439 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-benchs/nan_float_range.c [2022-11-19 07:36:26,514 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/e0cd9cf57/2fd8e663a37f41939414fd2188286f31/FLAGc3f9b20f2 [2022-11-19 07:36:26,969 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:36:26,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/sv-benchmarks/c/float-benchs/nan_float_range.c [2022-11-19 07:36:26,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/e0cd9cf57/2fd8e663a37f41939414fd2188286f31/FLAGc3f9b20f2 [2022-11-19 07:36:27,374 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/data/e0cd9cf57/2fd8e663a37f41939414fd2188286f31 [2022-11-19 07:36:27,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:36:27,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:36:27,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:36:27,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:36:27,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:36:27,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc2e408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27, skipping insertion in model container [2022-11-19 07:36:27,390 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:36:27,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:36:27,622 WARN L234 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_1b0978c2-ba14-4662-ba96-2099669ce53d/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2022-11-19 07:36:27,635 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:36:27,655 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:36:27,710 WARN L234 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_1b0978c2-ba14-4662-ba96-2099669ce53d/sv-benchmarks/c/float-benchs/nan_float_range.c[423,436] [2022-11-19 07:36:27,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:36:27,734 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:36:27,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27 WrapperNode [2022-11-19 07:36:27,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:36:27,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:36:27,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:36:27,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:36:27,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,784 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 24 [2022-11-19 07:36:27,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:36:27,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:36:27,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:36:27,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:36:27,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,798 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:36:27,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:36:27,845 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:36:27,845 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:36:27,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (1/1) ... [2022-11-19 07:36:27,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:36:27,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:36:27,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:36:27,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:36:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:36:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:36:27,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:36:27,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:36:28,043 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:36:28,046 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:36:28,365 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:36:28,371 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:36:28,371 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:36:28,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:28 BoogieIcfgContainer [2022-11-19 07:36:28,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:36:28,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:36:28,376 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:36:28,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:36:28,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:36:27" (1/3) ... [2022-11-19 07:36:28,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0a7c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:28, skipping insertion in model container [2022-11-19 07:36:28,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:36:27" (2/3) ... [2022-11-19 07:36:28,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0a7c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:36:28, skipping insertion in model container [2022-11-19 07:36:28,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:28" (3/3) ... [2022-11-19 07:36:28,384 INFO L112 eAbstractionObserver]: Analyzing ICFG nan_float_range.c [2022-11-19 07:36:28,405 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:36:28,405 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:36:28,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:36:28,489 INFO L357 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=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@45ee3671, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:36:28,490 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:36:28,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) [2022-11-19 07:36:28,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 07:36:28,526 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:36:28,526 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 07:36:28,527 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:36:28,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:36:28,533 INFO L85 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2022-11-19 07:36:28,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:36:28,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1287025967] [2022-11-19 07:36:28,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:36:28,549 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:36:28,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:36:28,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:36:28,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:36:28,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:36:28,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-19 07:36:28,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:36:28,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:36:28,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:36:28,989 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:36:28,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1287025967] [2022-11-19 07:36:28,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1287025967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:36:28,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:36:28,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:36:28,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288309792] [2022-11-19 07:36:28,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:36:28,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:36:29,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:36:29,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:36:29,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:36:29,044 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 states have internal predecessors, (12), 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) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-19 07:36:29,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:36:29,069 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-11-19 07:36:29,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:36:29,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2022-11-19 07:36:29,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:36:29,089 INFO L225 Difference]: With dead ends: 20 [2022-11-19 07:36:29,089 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:36:29,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:36:29,099 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:36:29,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 17 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:36:29,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:36:29,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:36:29,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-19 07:36:29,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:36:29,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-19 07:36:29,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:36:29,132 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:36:29,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-19 07:36:29,133 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:36:29,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:36:29,137 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:36:29,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:36:29,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:36:29,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:36:29,364 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:36:29,365 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 07:36:29,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 07:36:29,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 07:36:29,365 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2022-11-19 07:36:29,365 INFO L902 garLoopResultBuilder]: At program point L18(lines 10 19) the Hoare annotation is: true [2022-11-19 07:36:29,366 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-11-19 07:36:29,366 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 15 17) no Hoare annotation was computed. [2022-11-19 07:36:29,366 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-11-19 07:36:29,366 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-11-19 07:36:29,366 INFO L895 garLoopResultBuilder]: At program point L8-3(line 8) the Hoare annotation is: (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) [2022-11-19 07:36:29,369 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 07:36:29,372 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:36:29,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:36:29 BoogieIcfgContainer [2022-11-19 07:36:29,385 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:36:29,386 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:36:29,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:36:29,386 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:36:29,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:36:28" (3/4) ... [2022-11-19 07:36:29,390 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:36:29,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 07:36:29,400 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:36:29,401 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 07:36:29,401 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:36:29,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:36:29,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:36:29,430 INFO L158 Benchmark]: Toolchain (without parser) took 2050.45ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 32.9MB in the end (delta: 15.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-11-19 07:36:29,431 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:36:29,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.13ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 51.2MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:36:29,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.30ms. Allocated memory is still 67.1MB. Free memory was 51.2MB in the beginning and 49.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:36:29,433 INFO L158 Benchmark]: Boogie Preprocessor took 52.94ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 48.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:36:29,433 INFO L158 Benchmark]: RCFGBuilder took 533.35ms. Allocated memory is still 67.1MB. Free memory was 48.4MB in the beginning and 39.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:36:29,434 INFO L158 Benchmark]: TraceAbstraction took 1008.94ms. Allocated memory is still 67.1MB. Free memory was 38.8MB in the beginning and 35.0MB in the end (delta: 3.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2022-11-19 07:36:29,435 INFO L158 Benchmark]: Witness Printer took 43.78ms. Allocated memory is still 67.1MB. Free memory was 35.0MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:36:29,439 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 67.1MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.13ms. Allocated memory is still 67.1MB. Free memory was 48.2MB in the beginning and 51.2MB in the end (delta: -3.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.30ms. Allocated memory is still 67.1MB. Free memory was 51.2MB in the beginning and 49.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.94ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 48.4MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.35ms. Allocated memory is still 67.1MB. Free memory was 48.4MB in the beginning and 39.5MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1008.94ms. Allocated memory is still 67.1MB. Free memory was 38.8MB in the beginning and 35.0MB in the end (delta: 3.7MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 43.78ms. Allocated memory is still 67.1MB. Free memory was 35.0MB in the beginning and 32.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 8]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1 IncrementalHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 1 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 3 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: cond == 1bv32 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:36:29,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b0978c2-ba14-4662-ba96-2099669ce53d/bin/utaipan-I9t0OCRTmS/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 Result: TRUE