./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh --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 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 --- 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-2329fc7 [2022-12-14 06:37:35,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:37:35,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:37:35,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:37:35,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:37:35,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:37:35,135 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:37:35,137 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:37:35,138 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:37:35,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:37:35,140 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:37:35,141 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:37:35,141 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:37:35,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:37:35,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:37:35,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:37:35,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:37:35,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:37:35,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:37:35,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:37:35,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:37:35,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:37:35,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:37:35,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:37:35,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:37:35,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:37:35,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:37:35,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:37:35,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:37:35,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:37:35,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:37:35,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:37:35,171 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:37:35,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:37:35,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:37:35,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:37:35,181 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:37:35,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:37:35,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:37:35,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:37:35,183 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:37:35,184 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 06:37:35,202 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:37:35,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:37:35,203 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:37:35,203 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:37:35,204 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:37:35,204 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:37:35,204 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:37:35,204 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:37:35,204 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:37:35,205 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:37:35,205 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:37:35,205 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:37:35,205 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:37:35,205 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:37:35,205 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:37:35,205 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:37:35,206 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:37:35,206 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:37:35,206 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:37:35,207 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:37:35,208 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:37:35,208 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:37:35,208 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:37:35,208 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:37:35,208 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:37:35,208 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:37:35,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:35,209 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:37:35,209 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:37:35,209 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:37:35,209 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:37:35,209 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:37:35,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:37:35,210 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:37:35,210 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:37:35,210 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_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 [2022-12-14 06:37:35,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:37:35,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:37:35,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:37:35,393 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:37:35,394 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:37:35,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2022-12-14 06:37:37,957 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:37:38,094 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:37:38,094 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2022-12-14 06:37:38,100 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data/39e4a61f6/75252d189e5242379aeb0af53f88b7ac/FLAG63b6ba237 [2022-12-14 06:37:38,111 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data/39e4a61f6/75252d189e5242379aeb0af53f88b7ac [2022-12-14 06:37:38,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:37:38,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:37:38,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:38,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:37:38,118 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:37:38,118 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65017a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38, skipping insertion in model container [2022-12-14 06:37:38,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:37:38,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:37:38,252 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2022-12-14 06:37:38,256 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2022-12-14 06:37:38,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:38,296 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:37:38,306 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2022-12-14 06:37:38,307 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2022-12-14 06:37:38,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:38,341 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:37:38,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38 WrapperNode [2022-12-14 06:37:38,341 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:38,342 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:38,342 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:37:38,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:37:38,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,355 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,374 INFO L138 Inliner]: procedures = 27, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 222 [2022-12-14 06:37:38,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:38,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:37:38,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:37:38,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:37:38,382 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:37:38,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:37:38,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:37:38,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:37:38,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (1/1) ... [2022-12-14 06:37:38,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:38,450 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:37:38,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:37:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:37:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-14 06:37:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-14 06:37:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:37:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:37:38,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:37:38,486 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:37:38,487 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:37:38,551 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:37:38,553 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:37:38,849 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:37:38,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:37:38,975 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 06:37:38,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:38 BoogieIcfgContainer [2022-12-14 06:37:38,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:37:38,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:37:38,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:37:38,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:37:38,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:37:38" (1/3) ... [2022-12-14 06:37:38,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ebc185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:38, skipping insertion in model container [2022-12-14 06:37:38,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:38" (2/3) ... [2022-12-14 06:37:38,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68ebc185 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:38, skipping insertion in model container [2022-12-14 06:37:38,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:38" (3/3) ... [2022-12-14 06:37:38,983 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_1-3a.c.cil.c [2022-12-14 06:37:38,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:37:38,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:37:39,034 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:37:39,039 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;@10843536, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:37:39,040 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:37:39,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 39 states have (on average 1.5384615384615385) internal successors, (60), 43 states have internal predecessors, (60), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 06:37:39,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:37:39,048 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:39,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:37:39,049 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:39,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:39,053 INFO L85 PathProgramCache]: Analyzing trace with hash 12709575, now seen corresponding path program 1 times [2022-12-14 06:37:39,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:37:39,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485884753] [2022-12-14 06:37:39,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:39,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:37:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:37:39,136 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:37:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:37:39,160 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:37:39,162 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:37:39,163 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-12-14 06:37:39,164 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-12-14 06:37:39,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:37:39,168 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:37:39,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:37:39,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:37:39 BoogieIcfgContainer [2022-12-14 06:37:39,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:37:39,187 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:37:39,187 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:37:39,187 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:37:39,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:38" (3/4) ... [2022-12-14 06:37:39,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:37:39,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:37:39,192 INFO L158 Benchmark]: Toolchain (without parser) took 1078.05ms. Allocated memory is still 205.5MB. Free memory was 142.3MB in the beginning and 110.5MB in the end (delta: 31.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-12-14 06:37:39,193 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:37:39,193 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.76ms. Allocated memory is still 205.5MB. Free memory was 141.9MB in the beginning and 127.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:37:39,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.74ms. Allocated memory is still 205.5MB. Free memory was 127.1MB in the beginning and 124.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:37:39,194 INFO L158 Benchmark]: Boogie Preprocessor took 37.85ms. Allocated memory is still 205.5MB. Free memory was 124.8MB in the beginning and 177.4MB in the end (delta: -52.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-12-14 06:37:39,195 INFO L158 Benchmark]: RCFGBuilder took 563.95ms. Allocated memory is still 205.5MB. Free memory was 177.4MB in the beginning and 125.1MB in the end (delta: 52.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2022-12-14 06:37:39,195 INFO L158 Benchmark]: TraceAbstraction took 207.19ms. Allocated memory is still 205.5MB. Free memory was 124.5MB in the beginning and 110.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:37:39,196 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 205.5MB. Free memory is still 110.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:37:39,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.76ms. Allocated memory is still 205.5MB. Free memory was 141.9MB in the beginning and 127.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.74ms. Allocated memory is still 205.5MB. Free memory was 127.1MB in the beginning and 124.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.85ms. Allocated memory is still 205.5MB. Free memory was 124.8MB in the beginning and 177.4MB in the end (delta: -52.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 563.95ms. Allocated memory is still 205.5MB. Free memory was 177.4MB in the beginning and 125.1MB in the end (delta: 52.3MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * TraceAbstraction took 207.19ms. Allocated memory is still 205.5MB. Free memory was 124.5MB in the beginning and 110.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 205.5MB. Free memory is still 110.5MB. 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: 48]: 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L402] COND TRUE __VERIFIER_nondet_int() [L403] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.3985f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 53 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=53occurred 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 [2022-12-14 06:37:39,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh --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 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 --- 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-2329fc7 [2022-12-14 06:37:40,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:37:40,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:37:40,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:37:40,950 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:37:40,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:37:40,953 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:37:40,955 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:37:40,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:37:40,957 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:37:40,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:37:40,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:37:40,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:37:40,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:37:40,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:37:40,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:37:40,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:37:40,965 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:37:40,967 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:37:40,969 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:37:40,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:37:40,972 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:37:40,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:37:40,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:37:40,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:37:40,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:37:40,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:37:40,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:37:40,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:37:40,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:37:40,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:37:40,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:37:40,982 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:37:40,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:37:40,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:37:40,984 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:37:40,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:37:40,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:37:40,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:37:40,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:37:40,987 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:37:40,988 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-12-14 06:37:41,012 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:37:41,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:37:41,013 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:37:41,013 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:37:41,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:37:41,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:37:41,014 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:37:41,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:37:41,015 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:37:41,015 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:37:41,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:37:41,015 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:37:41,016 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:37:41,016 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 06:37:41,016 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 06:37:41,017 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:37:41,017 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:37:41,017 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:37:41,017 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:37:41,017 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:37:41,018 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:37:41,018 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:37:41,018 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 06:37:41,018 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:37:41,018 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:37:41,018 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:37:41,019 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:37:41,019 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:37:41,019 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:37:41,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:41,020 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:37:41,020 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:37:41,020 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:37:41,020 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:37:41,020 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:37:41,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:37:41,021 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:37:41,021 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:37:41,021 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_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6db80c50f6c3923c66cb027dfda5b1b6c51388d665fc6094a25deaee220bcef4 [2022-12-14 06:37:41,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:37:41,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:37:41,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:37:41,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:37:41,278 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:37:41,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2022-12-14 06:37:43,895 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:37:44,075 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:37:44,075 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c [2022-12-14 06:37:44,083 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data/d586f7ad5/0f47d0b9d62644afb6812c14c0e10a77/FLAG865f76a78 [2022-12-14 06:37:44,094 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/data/d586f7ad5/0f47d0b9d62644afb6812c14c0e10a77 [2022-12-14 06:37:44,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:37:44,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:37:44,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:44,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:37:44,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:37:44,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a7d2ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44, skipping insertion in model container [2022-12-14 06:37:44,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:37:44,130 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:37:44,241 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2022-12-14 06:37:44,246 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2022-12-14 06:37:44,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:44,285 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:37:44,296 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[1998,2011] [2022-12-14 06:37:44,297 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_733626bf-0161-4910-a2d2-b8cff163c4ac/sv-benchmarks/c/combinations/square_5+soft_float_1-3a.c.cil.c[2367,2380] [2022-12-14 06:37:44,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:37:44,329 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:37:44,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44 WrapperNode [2022-12-14 06:37:44,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:37:44,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:44,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:37:44,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:37:44,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,371 INFO L138 Inliner]: procedures = 28, calls = 21, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 164 [2022-12-14 06:37:44,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:37:44,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:37:44,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:37:44,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:37:44,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,392 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:37:44,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:37:44,396 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:37:44,396 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:37:44,397 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (1/1) ... [2022-12-14 06:37:44,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:37:44,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:37:44,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:37:44,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:37:44,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:37:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:37:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-12-14 06:37:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-12-14 06:37:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:37:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:37:44,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 06:37:44,454 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 06:37:44,527 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:37:44,529 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:37:46,988 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:37:46,995 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:37:46,996 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 06:37:46,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:46 BoogieIcfgContainer [2022-12-14 06:37:46,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:37:47,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:37:47,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:37:47,003 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:37:47,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:37:44" (1/3) ... [2022-12-14 06:37:47,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77bd9fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:47, skipping insertion in model container [2022-12-14 06:37:47,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:37:44" (2/3) ... [2022-12-14 06:37:47,004 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77bd9fcf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:37:47, skipping insertion in model container [2022-12-14 06:37:47,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:37:46" (3/3) ... [2022-12-14 06:37:47,005 INFO L112 eAbstractionObserver]: Analyzing ICFG square_5+soft_float_1-3a.c.cil.c [2022-12-14 06:37:47,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:37:47,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:37:47,062 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:37:47,068 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;@4d6887d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:37:47,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:37:47,072 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-12-14 06:37:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:37:47,077 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:47,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:47,078 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:47,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:47,082 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-12-14 06:37:47,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:37:47,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2099704636] [2022-12-14 06:37:47,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:47,092 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 [2022-12-14 06:37:47,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:37:47,093 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:37:47,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:37:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:37:47,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-14 06:37:47,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:37:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:37:47,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:37:47,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:37:47,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2099704636] [2022-12-14 06:37:47,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2099704636] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:37:47,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:37:47,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:37:47,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602024160] [2022-12-14 06:37:47,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:37:47,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 06:37:47,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:37:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 06:37:47,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:37:47,594 INFO L87 Difference]: Start difference. First operand has 81 states, 67 states have (on average 1.5820895522388059) internal successors, (106), 71 states have internal predecessors, (106), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-12-14 06:37:47,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:37:47,621 INFO L93 Difference]: Finished difference Result 157 states and 249 transitions. [2022-12-14 06:37:47,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 06:37:47,622 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-12-14 06:37:47,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:37:47,630 INFO L225 Difference]: With dead ends: 157 [2022-12-14 06:37:47,630 INFO L226 Difference]: Without dead ends: 74 [2022-12-14 06:37:47,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 06:37:47,637 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:37:47,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:37:47,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-12-14 06:37:47,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-12-14 06:37:47,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 61 states have (on average 1.4918032786885247) internal successors, (91), 64 states have internal predecessors, (91), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-14 06:37:47,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2022-12-14 06:37:47,669 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2022-12-14 06:37:47,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:37:47,670 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2022-12-14 06:37:47,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2022-12-14 06:37:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2022-12-14 06:37:47,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:37:47,670 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:37:47,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:37:47,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:37:47,876 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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 [2022-12-14 06:37:47,878 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:37:47,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:37:47,880 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-12-14 06:37:47,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:37:47,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727603366] [2022-12-14 06:37:47,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:37:47,882 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 [2022-12-14 06:37:47,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:37:47,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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) [2022-12-14 06:37:47,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_733626bf-0161-4910-a2d2-b8cff163c4ac/bin/utaipan-gh47qXpMRh/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