./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact.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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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 a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 --- 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 06:59:28,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:59:28,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:59:28,353 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:59:28,353 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:59:28,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:59:28,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:59:28,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:59:28,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:59:28,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:59:28,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:59:28,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:59:28,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:59:28,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:59:28,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:59:28,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:59:28,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:59:28,367 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:59:28,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:59:28,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:59:28,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:59:28,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:59:28,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:59:28,383 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:59:28,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:59:28,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:59:28,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:59:28,388 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:59:28,389 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:59:28,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:59:28,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:59:28,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:59:28,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:59:28,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:59:28,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:59:28,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:59:28,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:59:28,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:59:28,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:59:28,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:59:28,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:59:28,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 06:59:28,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:59:28,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:59:28,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:59:28,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:59:28,458 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:59:28,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:59:28,458 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:59:28,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:59:28,459 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:59:28,459 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:59:28,459 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:59:28,460 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:59:28,460 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:59:28,460 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:59:28,460 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:59:28,460 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:59:28,461 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:59:28,461 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:59:28,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:59:28,462 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:59:28,462 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:59:28,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:59:28,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:59:28,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:59:28,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:59:28,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:59:28,468 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:59:28,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:59:28,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:59:28,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:59:28,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:59:28,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:59:28,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:59:28,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:59:28,472 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:59:28,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:59:28,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:59:28,473 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:59:28,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:59:28,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:59:28,479 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:59:28,480 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 [2022-11-19 06:59:28,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:59:28,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:59:28,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:59:28,765 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:59:28,766 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:59:28,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2022-11-19 06:59:28,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/51cfd97d5/66cc3cd43da54f4aa8282c4cc5fba6e7/FLAGfcc8893f8 [2022-11-19 06:59:29,278 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:59:29,279 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2022-11-19 06:59:29,285 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/51cfd97d5/66cc3cd43da54f4aa8282c4cc5fba6e7/FLAGfcc8893f8 [2022-11-19 06:59:29,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/51cfd97d5/66cc3cd43da54f4aa8282c4cc5fba6e7 [2022-11-19 06:59:29,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:59:29,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:59:29,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:59:29,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:59:29,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:59:29,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:29,734 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ee8feed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29, skipping insertion in model container [2022-11-19 06:59:29,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:29,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:59:29,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:59:29,893 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2022-11-19 06:59:29,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:59:29,914 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:59:29,926 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2022-11-19 06:59:29,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:59:29,957 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:59:29,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29 WrapperNode [2022-11-19 06:59:29,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:59:29,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:59:29,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:59:29,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:59:29,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:29,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,011 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-11-19 06:59:30,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:59:30,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:59:30,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:59:30,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:59:30,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,031 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:59:30,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:59:30,034 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:59:30,034 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:59:30,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (1/1) ... [2022-11-19 06:59:30,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:59:30,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:30,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:59:30,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:59:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:59:30,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:59:30,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:59:30,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:59:30,173 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:59:30,175 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:59:30,317 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:59:30,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:59:30,348 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:59:30,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:30 BoogieIcfgContainer [2022-11-19 06:59:30,350 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:59:30,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:59:30,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:59:30,361 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:59:30,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:59:29" (1/3) ... [2022-11-19 06:59:30,362 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516dcd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:59:30, skipping insertion in model container [2022-11-19 06:59:30,362 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:29" (2/3) ... [2022-11-19 06:59:30,363 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@516dcd30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:59:30, skipping insertion in model container [2022-11-19 06:59:30,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:30" (3/3) ... [2022-11-19 06:59:30,366 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2022-11-19 06:59:30,384 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:59:30,385 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:59:30,456 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:59:30,466 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;@43435f1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:59:30,466 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:59:30,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 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) [2022-11-19 06:59:30,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-19 06:59:30,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:30,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-19 06:59:30,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:30,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:30,486 INFO L85 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2022-11-19 06:59:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:30,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378970090] [2022-11-19 06:59:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:30,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:59:30,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 06:59:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 06:59:30,643 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 06:59:30,648 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 06:59:30,649 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:59:30,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:59:30,659 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:59:30,663 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:59:30,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:59:30 BoogieIcfgContainer [2022-11-19 06:59:30,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:59:30,686 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:59:30,686 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:59:30,686 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:59:30,687 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:30" (3/4) ... [2022-11-19 06:59:30,690 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 06:59:30,691 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:59:30,693 INFO L158 Benchmark]: Toolchain (without parser) took 967.56ms. Allocated memory is still 109.1MB. Free memory was 86.8MB in the beginning and 58.0MB in the end (delta: 28.8MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-11-19 06:59:30,693 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 109.1MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:30,694 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.05ms. Allocated memory is still 109.1MB. Free memory was 86.8MB in the beginning and 84.0MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:59:30,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.98ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 82.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:30,696 INFO L158 Benchmark]: Boogie Preprocessor took 20.25ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 81.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:30,701 INFO L158 Benchmark]: RCFGBuilder took 316.46ms. Allocated memory is still 109.1MB. Free memory was 81.3MB in the beginning and 71.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 06:59:30,702 INFO L158 Benchmark]: TraceAbstraction took 332.22ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 58.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-19 06:59:30,702 INFO L158 Benchmark]: Witness Printer took 5.31ms. Allocated memory is still 109.1MB. Free memory is still 58.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:30,709 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 109.1MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.05ms. Allocated memory is still 109.1MB. Free memory was 86.8MB in the beginning and 84.0MB in the end (delta: 2.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.98ms. Allocated memory is still 109.1MB. Free memory was 84.0MB in the beginning and 82.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.25ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 81.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.46ms. Allocated memory is still 109.1MB. Free memory was 81.3MB in the beginning and 71.8MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 332.22ms. Allocated memory is still 109.1MB. Free memory was 71.0MB in the beginning and 58.4MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.31ms. Allocated memory is still 109.1MB. Free memory is still 58.0MB. 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: 6]: 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 someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.f) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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, 3 NumberOfCodeBlocks, 3 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 06:59:30,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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 a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 --- 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 06:59:33,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:59:33,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:59:33,102 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:59:33,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:59:33,109 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:59:33,112 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:59:33,116 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:59:33,119 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:59:33,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:59:33,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:59:33,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:59:33,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:59:33,134 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:59:33,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:59:33,141 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:59:33,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:59:33,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:59:33,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:59:33,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:59:33,155 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:59:33,156 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:59:33,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:59:33,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:59:33,169 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:59:33,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:59:33,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:59:33,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:59:33,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:59:33,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:59:33,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:59:33,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:59:33,177 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:59:33,178 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:59:33,179 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:59:33,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:59:33,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:59:33,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:59:33,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:59:33,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:59:33,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:59:33,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-19 06:59:33,230 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:59:33,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:59:33,247 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:59:33,247 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:59:33,248 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:59:33,249 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:59:33,249 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:59:33,249 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:59:33,249 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:59:33,250 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:59:33,251 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:59:33,251 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:59:33,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:59:33,253 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 06:59:33,253 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 06:59:33,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:59:33,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:59:33,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:59:33,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:59:33,255 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 06:59:33,255 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 06:59:33,255 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 06:59:33,256 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 06:59:33,256 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:59:33,256 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:59:33,256 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:59:33,257 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:59:33,257 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 06:59:33,257 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:59:33,258 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:59:33,258 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:59:33,258 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:59:33,259 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:59:33,259 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 06:59:33,260 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 06:59:33,260 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:59:33,260 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:59:33,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 06:59:33,261 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 [2022-11-19 06:59:33,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:59:33,710 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:59:33,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:59:33,715 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:59:33,716 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:59:33,717 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2022-11-19 06:59:33,779 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/cbcf2010a/3b3cf89cda7842c394b4a5fb16bbf634/FLAG7f9866907 [2022-11-19 06:59:34,221 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:59:34,222 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2022-11-19 06:59:34,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/cbcf2010a/3b3cf89cda7842c394b4a5fb16bbf634/FLAG7f9866907 [2022-11-19 06:59:34,631 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/data/cbcf2010a/3b3cf89cda7842c394b4a5fb16bbf634 [2022-11-19 06:59:34,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:59:34,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:59:34,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:59:34,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:59:34,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:59:34,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:34,648 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12539467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34, skipping insertion in model container [2022-11-19 06:59:34,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:34,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:59:34,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:59:34,866 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2022-11-19 06:59:34,876 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:59:34,891 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:59:34,928 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_a1f92ced-ae66-403a-aa0c-2efca3887ea2/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2022-11-19 06:59:34,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:59:34,974 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:59:34,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34 WrapperNode [2022-11-19 06:59:34,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:59:34,977 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:59:34,977 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:59:34,977 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:59:34,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:34,994 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,012 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-11-19 06:59:35,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:59:35,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:59:35,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:59:35,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:59:35,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,050 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:59:35,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:59:35,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:59:35,060 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:59:35,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (1/1) ... [2022-11-19 06:59:35,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:59:35,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:35,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:59:35,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:59:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:59:35,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:59:35,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:59:35,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 06:59:35,237 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:59:35,239 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:59:35,522 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:59:35,528 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:59:35,528 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 06:59:35,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:35 BoogieIcfgContainer [2022-11-19 06:59:35,531 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:59:35,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:59:35,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:59:35,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:59:35,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:59:34" (1/3) ... [2022-11-19 06:59:35,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551601d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:59:35, skipping insertion in model container [2022-11-19 06:59:35,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:59:34" (2/3) ... [2022-11-19 06:59:35,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@551601d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:59:35, skipping insertion in model container [2022-11-19 06:59:35,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:35" (3/3) ... [2022-11-19 06:59:35,540 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2022-11-19 06:59:35,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:59:35,561 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:59:35,632 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:59:35,638 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;@47946c1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:59:35,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:59:35,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 06:59:35,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 06:59:35,669 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:35,670 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 06:59:35,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:35,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:35,675 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-11-19 06:59:35,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 06:59:35,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1796982929] [2022-11-19 06:59:35,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:35,704 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 06:59:35,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 06:59:35,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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 06:59:35,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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 06:59:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:35,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 06:59:35,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:36,081 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 06:59:36,082 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:36,082 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 06:59:36,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1796982929] [2022-11-19 06:59:36,083 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1796982929] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:36,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:36,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:36,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994113259] [2022-11-19 06:59:36,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:36,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:59:36,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 06:59:36,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:59:36,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:59:36,134 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 06:59:36,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:36,235 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-11-19 06:59:36,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:59:36,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-11-19 06:59:36,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:36,244 INFO L225 Difference]: With dead ends: 13 [2022-11-19 06:59:36,244 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 06:59:36,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:59:36,251 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:36,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 06:59:36,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 06:59:36,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 06:59:36,275 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 06:59:36,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 06:59:36,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-11-19 06:59:36,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:36,277 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 06:59:36,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 06:59:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 06:59:36,277 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 06:59:36,280 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 06:59:36,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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 06:59:36,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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 06:59:36,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 06:59:36,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 06:59:36,519 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 06:59:36,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 06:59:36,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 06:59:36,519 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2022-11-19 06:59:36,520 INFO L895 garLoopResultBuilder]: At program point L17(lines 8 18) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-19 06:59:36,520 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-11-19 06:59:36,520 INFO L899 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2022-11-19 06:59:36,521 INFO L895 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-11-19 06:59:36,524 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 06:59:36,527 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 06:59:36,537 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 06:59:36,541 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 06:59:36,541 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 06:59:36,542 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 06:59:36,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 06:59:36 BoogieIcfgContainer [2022-11-19 06:59:36,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 06:59:36,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 06:59:36,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 06:59:36,544 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 06:59:36,544 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:59:35" (3/4) ... [2022-11-19 06:59:36,547 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 06:59:36,562 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-19 06:59:36,563 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 06:59:36,563 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-19 06:59:36,563 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 06:59:36,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 06:59:36,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 06:59:36,593 INFO L158 Benchmark]: Toolchain (without parser) took 1956.97ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.6MB in the beginning and 50.5MB in the end (delta: -20.9MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-19 06:59:36,593 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 52.4MB. Free memory was 33.8MB in the beginning and 33.7MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:36,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.58ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 52.8MB in the end (delta: -23.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-19 06:59:36,595 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.02ms. Allocated memory is still 69.2MB. Free memory was 52.8MB in the beginning and 51.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:36,595 INFO L158 Benchmark]: Boogie Preprocessor took 45.43ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 50.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 06:59:36,596 INFO L158 Benchmark]: RCFGBuilder took 471.46ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 41.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 06:59:36,596 INFO L158 Benchmark]: TraceAbstraction took 1009.40ms. Allocated memory is still 69.2MB. Free memory was 40.8MB in the beginning and 32.4MB in the end (delta: 8.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2022-11-19 06:59:36,597 INFO L158 Benchmark]: Witness Printer took 48.41ms. Allocated memory is still 69.2MB. Free memory was 32.4MB in the beginning and 50.5MB in the end (delta: -18.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 06:59:36,600 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 52.4MB. Free memory was 33.8MB in the beginning and 33.7MB in the end (delta: 46.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.58ms. Allocated memory was 52.4MB in the beginning and 69.2MB in the end (delta: 16.8MB). Free memory was 29.3MB in the beginning and 52.8MB in the end (delta: -23.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.02ms. Allocated memory is still 69.2MB. Free memory was 52.8MB in the beginning and 51.5MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 45.43ms. Allocated memory is still 69.2MB. Free memory was 51.5MB in the beginning and 50.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 471.46ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 41.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1009.40ms. Allocated memory is still 69.2MB. Free memory was 40.8MB in the beginning and 32.4MB in the end (delta: 8.5MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Witness Printer took 48.41ms. Allocated memory is still 69.2MB. Free memory was 32.4MB in the beginning and 50.5MB in the end (delta: -18.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 6]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 4 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 6 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 8 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: 6]: Loop Invariant [2022-11-19 06:59:36,610 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 06:59:36,610 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 8]: Loop Invariant [2022-11-19 06:59:36,611 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-11-19 06:59:36,611 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-11-19 06:59:36,625 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1f92ced-ae66-403a-aa0c-2efca3887ea2/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