./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba --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 ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d --- 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-b5237d8 [2022-11-22 02:27:31,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:27:31,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:27:31,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:27:31,808 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:27:31,809 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:27:31,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:27:31,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:27:31,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:27:31,816 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:27:31,823 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:27:31,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:27:31,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:27:31,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:27:31,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:27:31,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:27:31,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:27:31,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:27:31,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:27:31,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:27:31,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:27:31,852 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:27:31,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:27:31,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:27:31,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:27:31,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:27:31,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:27:31,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:27:31,876 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:27:31,877 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:27:31,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:27:31,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:27:31,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:27:31,884 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:27:31,887 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:27:31,887 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:27:31,888 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:27:31,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:27:31,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:27:31,891 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:27:31,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:27:31,894 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 02:27:31,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:27:31,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:27:31,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:27:31,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:27:31,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:27:31,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:27:31,951 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:27:31,951 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:27:31,951 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:27:31,952 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:27:31,953 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:27:31,953 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:27:31,954 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:27:31,954 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:27:31,954 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:27:31,955 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:27:31,955 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:27:31,955 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:27:31,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:27:31,957 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:27:31,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:27:31,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:27:31,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:27:31,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:27:31,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:27:31,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:27:31,960 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:27:31,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:27:31,960 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:27:31,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:27:31,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:27:31,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:27:31,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:27:31,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:27:31,962 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:27:31,963 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:27:31,963 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:27:31,963 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:27:31,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:27:31,964 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:27:31,964 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:27:31,966 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_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d [2022-11-22 02:27:32,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:27:32,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:27:32,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:27:32,340 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:27:32,341 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:27:32,342 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2022-11-22 02:27:35,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:27:36,229 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:27:36,230 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2022-11-22 02:27:36,237 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data/6343ec385/cec8402897a249c8b46f57158462fbe2/FLAG57fb32493 [2022-11-22 02:27:36,260 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data/6343ec385/cec8402897a249c8b46f57158462fbe2 [2022-11-22 02:27:36,267 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:27:36,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:27:36,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:27:36,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:27:36,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:27:36,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7804de16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36, skipping insertion in model container [2022-11-22 02:27:36,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,294 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:27:36,317 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:27:36,529 WARN L237 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_e6997910-eb4a-4e64-bacc-11d32d9e6bac/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2022-11-22 02:27:36,554 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:27:36,568 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:27:36,586 WARN L237 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_e6997910-eb4a-4e64-bacc-11d32d9e6bac/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2022-11-22 02:27:36,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:27:36,612 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:27:36,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36 WrapperNode [2022-11-22 02:27:36,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:27:36,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:27:36,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:27:36,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:27:36,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,659 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31 [2022-11-22 02:27:36,659 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:27:36,661 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:27:36,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:27:36,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:27:36,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,677 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,704 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:27:36,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:27:36,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:27:36,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:27:36,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (1/1) ... [2022-11-22 02:27:36,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:27:36,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:27:36,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:27:36,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:27:36,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:27:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:27:36,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:27:36,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:27:36,891 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:27:36,894 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:27:37,055 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:27:37,094 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:27:37,094 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:27:37,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:37 BoogieIcfgContainer [2022-11-22 02:27:37,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:27:37,100 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:27:37,100 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:27:37,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:27:37,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:27:36" (1/3) ... [2022-11-22 02:27:37,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@810f9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:27:37, skipping insertion in model container [2022-11-22 02:27:37,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:36" (2/3) ... [2022-11-22 02:27:37,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@810f9aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:27:37, skipping insertion in model container [2022-11-22 02:27:37,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:37" (3/3) ... [2022-11-22 02:27:37,108 INFO L112 eAbstractionObserver]: Analyzing ICFG digits_for.c [2022-11-22 02:27:37,131 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:27:37,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:27:37,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:27:37,194 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;@3a68c807, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:27:37,195 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:27:37,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-22 02:27:37,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 02:27:37,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:37,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 02:27:37,207 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:37,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:37,215 INFO L85 PathProgramCache]: Analyzing trace with hash 1912039, now seen corresponding path program 1 times [2022-11-22 02:27:37,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:37,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106828774] [2022-11-22 02:27:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:37,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:27:37,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:27:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:27:37,463 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:27:37,465 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:27:37,467 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 02:27:37,471 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:27:37,477 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 02:27:37,483 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:27:37,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:27:37 BoogieIcfgContainer [2022-11-22 02:27:37,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:27:37,517 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:27:37,517 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:27:37,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:27:37,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:37" (3/4) ... [2022-11-22 02:27:37,522 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 02:27:37,523 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:27:37,526 INFO L158 Benchmark]: Toolchain (without parser) took 1251.59ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 101.2MB in the end (delta: 37.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-22 02:27:37,527 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:27:37,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.13ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 128.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:27:37,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.19ms. Allocated memory is still 172.0MB. Free memory was 128.5MB in the beginning and 127.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:27:37,530 INFO L158 Benchmark]: Boogie Preprocessor took 48.65ms. Allocated memory is still 172.0MB. Free memory was 127.1MB in the beginning and 126.4MB in the end (delta: 791.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:27:37,537 INFO L158 Benchmark]: RCFGBuilder took 386.68ms. Allocated memory is still 172.0MB. Free memory was 126.4MB in the beginning and 115.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:27:37,538 INFO L158 Benchmark]: TraceAbstraction took 413.34ms. Allocated memory is still 172.0MB. Free memory was 114.6MB in the beginning and 101.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 02:27:37,539 INFO L158 Benchmark]: Witness Printer took 6.15ms. Allocated memory is still 172.0MB. Free memory is still 101.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:27:37,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.13ms. Allocated memory is still 172.0MB. Free memory was 138.8MB in the beginning and 128.5MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.19ms. Allocated memory is still 172.0MB. Free memory was 128.5MB in the beginning and 127.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.65ms. Allocated memory is still 172.0MB. Free memory was 127.1MB in the beginning and 126.4MB in the end (delta: 791.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 386.68ms. Allocated memory is still 172.0MB. Free memory was 126.4MB in the beginning and 115.4MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 413.34ms. Allocated memory is still 172.0MB. Free memory was 114.6MB in the beginning and 101.2MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 6.15ms. Allocated memory is still 172.0MB. Free memory is still 101.2MB. 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: 4]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryLONGDOUBLEComparisonOperation at line 11, overapproximation of someBinaryArithmeticDOUBLEoperation at line 8. Possible FailurePath: [L8] long double x = 1.0/7.0; [L9] long long res = 0; [L11] int i = 1; VAL [i=1, res=0] [L11] COND FALSE !(x != 0) [L17] CALL __VERIFIER_assert(res == 67050) [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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=7occurred 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 [2022-11-22 02:27:37,579 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba --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 ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d --- 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-b5237d8 [2022-11-22 02:27:40,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:27:40,504 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:27:40,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:27:40,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:27:40,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:27:40,551 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:27:40,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:27:40,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:27:40,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:27:40,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:27:40,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:27:40,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:27:40,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:27:40,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:27:40,564 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:27:40,565 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:27:40,567 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:27:40,569 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:27:40,571 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:27:40,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:27:40,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:27:40,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:27:40,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:27:40,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:27:40,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:27:40,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:27:40,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:27:40,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:27:40,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:27:40,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:27:40,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:27:40,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:27:40,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:27:40,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:27:40,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:27:40,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:27:40,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:27:40,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:27:40,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:27:40,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:27:40,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 02:27:40,622 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:27:40,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:27:40,623 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:27:40,623 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:27:40,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:27:40,624 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:27:40,624 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:27:40,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:27:40,625 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:27:40,625 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:27:40,625 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:27:40,626 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:27:40,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:27:40,627 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:27:40,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:27:40,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:27:40,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:27:40,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:27:40,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:27:40,628 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 02:27:40,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 02:27:40,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 02:27:40,629 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:27:40,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:27:40,629 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:27:40,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:27:40,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:27:40,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 02:27:40,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:27:40,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:27:40,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:27:40,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:27:40,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:27:40,631 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 02:27:40,631 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 02:27:40,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:27:40,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:27:40,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 02:27:40,632 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_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae5df297f2d3ee5d728aff1b63a3afef9bfbadb73abd56462b4581e636fe830d [2022-11-22 02:27:41,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:27:41,095 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:27:41,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:27:41,100 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:27:41,101 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:27:41,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2022-11-22 02:27:44,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:27:44,697 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:27:44,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/sv-benchmarks/c/floats-esbmc-regression/digits_for.c [2022-11-22 02:27:44,716 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data/53519b838/594747d1c9d14111a6b861d41590339f/FLAG926366c65 [2022-11-22 02:27:44,746 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/data/53519b838/594747d1c9d14111a6b861d41590339f [2022-11-22 02:27:44,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:27:44,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:27:44,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:27:44,763 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:27:44,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:27:44,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:27:44" (1/1) ... [2022-11-22 02:27:44,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1191bf79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:44, skipping insertion in model container [2022-11-22 02:27:44,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:27:44" (1/1) ... [2022-11-22 02:27:44,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:27:44,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:27:45,023 WARN L237 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_e6997910-eb4a-4e64-bacc-11d32d9e6bac/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2022-11-22 02:27:45,051 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:27:45,069 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:27:45,088 WARN L237 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_e6997910-eb4a-4e64-bacc-11d32d9e6bac/sv-benchmarks/c/floats-esbmc-regression/digits_for.c[315,328] [2022-11-22 02:27:45,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:27:45,119 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:27:45,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45 WrapperNode [2022-11-22 02:27:45,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:27:45,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:27:45,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:27:45,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:27:45,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,167 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 32 [2022-11-22 02:27:45,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:27:45,169 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:27:45,169 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:27:45,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:27:45,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,219 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:27:45,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:27:45,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:27:45,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:27:45,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (1/1) ... [2022-11-22 02:27:45,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:27:45,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:27:45,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:27:45,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:27:45,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:27:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:27:45,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:27:45,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 02:27:45,424 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:27:45,427 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:27:47,702 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:27:47,707 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:27:47,708 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:27:47,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:47 BoogieIcfgContainer [2022-11-22 02:27:47,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:27:47,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:27:47,712 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:27:47,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:27:47,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:27:44" (1/3) ... [2022-11-22 02:27:47,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9ffac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:27:47, skipping insertion in model container [2022-11-22 02:27:47,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:27:45" (2/3) ... [2022-11-22 02:27:47,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9ffac8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:27:47, skipping insertion in model container [2022-11-22 02:27:47,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:27:47" (3/3) ... [2022-11-22 02:27:47,720 INFO L112 eAbstractionObserver]: Analyzing ICFG digits_for.c [2022-11-22 02:27:47,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:27:47,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 02:27:47,831 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:27:47,838 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;@1456d2fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:27:47,843 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 02:27:47,847 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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) [2022-11-22 02:27:47,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:27:47,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:47,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:27:47,855 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:47,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:47,861 INFO L85 PathProgramCache]: Analyzing trace with hash 889605037, now seen corresponding path program 1 times [2022-11-22 02:27:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:27:47,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654551597] [2022-11-22 02:27:47,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:47,876 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 [2022-11-22 02:27:47,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:27:47,882 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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) [2022-11-22 02:27:47,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:27:47,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:47,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:27:47,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:27:48,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:27:48,115 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:27:48,116 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:27:48,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654551597] [2022-11-22 02:27:48,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654551597] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:27:48,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:27:48,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:27:48,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17615762] [2022-11-22 02:27:48,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:27:48,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:27:48,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 02:27:48,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:27:48,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:27:48,198 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 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 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 02:27:50,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:50,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:50,583 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2022-11-22 02:27:50,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:27:50,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-22 02:27:50,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:50,603 INFO L225 Difference]: With dead ends: 21 [2022-11-22 02:27:50,604 INFO L226 Difference]: Without dead ends: 9 [2022-11-22 02:27:50,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:27:50,613 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:50,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-22 02:27:50,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-11-22 02:27:50,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-11-22 02:27:50,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) 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) [2022-11-22 02:27:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 02:27:50,659 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2022-11-22 02:27:50,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:50,660 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 02:27:50,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-22 02:27:50,661 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 02:27:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 02:27:50,662 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:50,662 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:27:50,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:27:50,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:27:50,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:50,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:50,877 INFO L85 PathProgramCache]: Analyzing trace with hash 265180975, now seen corresponding path program 1 times [2022-11-22 02:27:50,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 02:27:50,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [735250794] [2022-11-22 02:27:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:50,878 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 [2022-11-22 02:27:50,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 02:27:50,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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) [2022-11-22 02:27:50,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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 (3)] Waiting until timeout for monitored process [2022-11-22 02:27:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:27:51,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:27:51,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:27:54,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:27:54,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:28:00,405 WARN L837 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|) (_ bv10 32)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from false [2022-11-22 02:28:02,451 WARN L859 $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|) (_ bv10 32)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from true [2022-11-22 02:28:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-22 02:28:02,659 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 02:28:02,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [735250794] [2022-11-22 02:28:02,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [735250794] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:28:02,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [18608551] [2022-11-22 02:28:02,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:28:02,660 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 02:28:02,660 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 02:28:02,664 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 02:28:02,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 02:28:02,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 1 [2022-11-22 02:28:02,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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 (3)] Ended with exit code 0 [2022-11-22 02:28:03,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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 [2022-11-22 02:28:03,136 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1458) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 31 more [2022-11-22 02:28:03,140 INFO L158 Benchmark]: Toolchain (without parser) took 18384.80ms. Allocated memory is still 94.4MB. Free memory was 71.8MB in the beginning and 45.5MB in the end (delta: 26.3MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2022-11-22 02:28:03,140 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:28:03,141 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.15ms. Allocated memory is still 94.4MB. Free memory was 71.5MB in the beginning and 61.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:28:03,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.54ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:28:03,142 INFO L158 Benchmark]: Boogie Preprocessor took 58.75ms. Allocated memory is still 94.4MB. Free memory was 59.4MB in the beginning and 58.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:28:03,142 INFO L158 Benchmark]: RCFGBuilder took 2481.06ms. Allocated memory is still 94.4MB. Free memory was 58.2MB in the beginning and 48.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:28:03,143 INFO L158 Benchmark]: TraceAbstraction took 15427.31ms. Allocated memory is still 94.4MB. Free memory was 47.5MB in the beginning and 45.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-11-22 02:28:03,147 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 69.2MB. Free memory was 47.6MB in the beginning and 47.5MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.15ms. Allocated memory is still 94.4MB. Free memory was 71.5MB in the beginning and 61.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.54ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 59.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.75ms. Allocated memory is still 94.4MB. Free memory was 59.4MB in the beginning and 58.2MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2481.06ms. Allocated memory is still 94.4MB. Free memory was 58.2MB in the beginning and 48.2MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15427.31ms. Allocated memory is still 94.4MB. Free memory was 47.5MB in the beginning and 45.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-22 02:28:03,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6997910-eb4a-4e64-bacc-11d32d9e6bac/bin/utaipan-g80aRyZoba/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: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: FP term ((_ to_fp 15 113) currentRoundingMode_0 termITE_1) with type whose size is 15/113 is not supported, only Float32 (8/24) or Float64 (11/53) types are supported in default mode. Try the experimental solver via --fp-exp. Note: There are known issues with the experimental solver, use at your own risk.