./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW --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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- 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-4e7fbc6 [2022-11-23 14:29:54,259 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:29:54,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:29:54,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:29:54,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:29:54,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:29:54,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:29:54,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:29:54,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:29:54,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:29:54,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:29:54,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:29:54,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:29:54,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:29:54,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:29:54,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:29:54,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:29:54,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:29:54,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:29:54,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:29:54,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:29:54,334 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:29:54,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:29:54,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:29:54,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:29:54,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:29:54,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:29:54,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:29:54,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:29:54,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:29:54,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:29:54,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:29:54,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:29:54,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:29:54,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:29:54,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:29:54,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:29:54,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:29:54,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:29:54,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:29:54,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:29:54,359 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 14:29:54,396 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:29:54,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:29:54,397 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:29:54,397 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:29:54,398 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:29:54,399 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:29:54,399 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:29:54,399 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:29:54,399 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:29:54,399 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:29:54,401 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:29:54,401 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:29:54,401 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:29:54,401 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:29:54,402 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:29:54,402 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:29:54,402 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:29:54,402 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:29:54,403 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:29:54,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:29:54,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:29:54,404 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:29:54,404 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:29:54,404 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:29:54,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:29:54,404 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:29:54,405 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:29:54,405 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:29:54,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:29:54,405 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:29:54,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:29:54,406 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:29:54,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:29:54,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:29:54,407 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:29:54,407 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:29:54,407 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:29:54,407 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:29:54,407 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:29:54,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:29:54,408 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:29:54,408 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_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2022-11-23 14:29:54,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:29:54,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:29:54,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:29:54,719 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:29:54,719 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:29:54,721 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-11-23 14:29:57,682 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:29:57,948 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:29:57,949 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-11-23 14:29:57,956 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data/641565a8b/2bd408dc6daa4d7dad4a175f3cbf17b5/FLAG40f507c3b [2022-11-23 14:29:57,971 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data/641565a8b/2bd408dc6daa4d7dad4a175f3cbf17b5 [2022-11-23 14:29:57,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:29:57,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:29:57,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:29:57,978 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:29:57,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:29:57,983 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e0fb31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:57, skipping insertion in model container [2022-11-23 14:29:57,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:29:57" (1/1) ... [2022-11-23 14:29:57,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:29:58,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:29:58,163 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_81cc1f70-d57c-4c02-ad74-a732a626f819/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2022-11-23 14:29:58,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:29:58,183 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:29:58,204 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_81cc1f70-d57c-4c02-ad74-a732a626f819/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2022-11-23 14:29:58,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:29:58,220 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:29:58,220 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58 WrapperNode [2022-11-23 14:29:58,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:29:58,222 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:29:58,222 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:29:58,222 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:29:58,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,259 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-11-23 14:29:58,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:29:58,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:29:58,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:29:58,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:29:58,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,275 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,287 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:29:58,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:29:58,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:29:58,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:29:58,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (1/1) ... [2022-11-23 14:29:58,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:29:58,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:29:58,341 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:29:58,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:29:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:29:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 14:29:58,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:29:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-23 14:29:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 14:29:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-23 14:29:58,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:29:58,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:29:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 14:29:58,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:29:58,463 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:29:58,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:29:58,596 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:29:58,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:29:58,640 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 14:29:58,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:58 BoogieIcfgContainer [2022-11-23 14:29:58,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:29:58,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:29:58,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:29:58,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:29:58,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:29:57" (1/3) ... [2022-11-23 14:29:58,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c68e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:58, skipping insertion in model container [2022-11-23 14:29:58,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:29:58" (2/3) ... [2022-11-23 14:29:58,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c68e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:29:58, skipping insertion in model container [2022-11-23 14:29:58,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:58" (3/3) ... [2022-11-23 14:29:58,665 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2022-11-23 14:29:58,702 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:29:58,715 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:29:58,800 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:29:58,810 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;@560a66f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:29:58,814 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:29:58,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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) [2022-11-23 14:29:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-23 14:29:58,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:58,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:58,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:29:58,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:58,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1931305588, now seen corresponding path program 1 times [2022-11-23 14:29:58,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:58,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140909444] [2022-11-23 14:29:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:58,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:29:59,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:29:59,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 14:29:59,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140909444] [2022-11-23 14:29:59,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140909444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:29:59,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:29:59,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:29:59,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750370085] [2022-11-23 14:29:59,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:29:59,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:29:59,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 14:29:59,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:29:59,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:29:59,143 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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 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) [2022-11-23 14:29:59,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:29:59,196 INFO L93 Difference]: Finished difference Result 25 states and 37 transitions. [2022-11-23 14:29:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:29:59,199 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 [2022-11-23 14:29:59,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:29:59,208 INFO L225 Difference]: With dead ends: 25 [2022-11-23 14:29:59,208 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:29:59,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:29:59,218 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:29:59,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:29:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:29:59,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-23 14:29:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.0) internal successors, (10), 10 states have internal predecessors, (10), 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) [2022-11-23 14:29:59,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2022-11-23 14:29:59,249 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 7 [2022-11-23 14:29:59,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:29:59,250 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2022-11-23 14:29:59,250 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) [2022-11-23 14:29:59,250 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2022-11-23 14:29:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:29:59,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:29:59,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:29:59,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:29:59,252 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:29:59,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:29:59,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1496915768, now seen corresponding path program 1 times [2022-11-23 14:29:59,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:29:59,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867931596] [2022-11-23 14:29:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:29:59,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:29:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:29:59,316 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:29:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:29:59,371 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:29:59,372 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:29:59,374 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:29:59,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 14:29:59,380 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-23 14:29:59,383 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:29:59,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:29:59 BoogieIcfgContainer [2022-11-23 14:29:59,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:29:59,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:29:59,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:29:59,408 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:29:59,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:29:58" (3/4) ... [2022-11-23 14:29:59,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:29:59,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:29:59,413 INFO L158 Benchmark]: Toolchain (without parser) took 1437.20ms. Allocated memory is still 188.7MB. Free memory was 155.4MB in the beginning and 99.9MB in the end (delta: 55.5MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,414 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:29:59,414 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.61ms. Allocated memory is still 188.7MB. Free memory was 155.4MB in the beginning and 145.2MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,415 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.49ms. Allocated memory is still 188.7MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,415 INFO L158 Benchmark]: Boogie Preprocessor took 35.08ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 141.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,416 INFO L158 Benchmark]: RCFGBuilder took 346.88ms. Allocated memory is still 188.7MB. Free memory was 141.9MB in the beginning and 128.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,416 INFO L158 Benchmark]: TraceAbstraction took 761.59ms. Allocated memory is still 188.7MB. Free memory was 127.2MB in the beginning and 100.8MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,417 INFO L158 Benchmark]: Witness Printer took 4.50ms. Allocated memory is still 188.7MB. Free memory was 100.8MB in the beginning and 99.9MB in the end (delta: 933.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:29:59,420 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory was 74.2MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.61ms. Allocated memory is still 188.7MB. Free memory was 155.4MB in the beginning and 145.2MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.49ms. Allocated memory is still 188.7MB. Free memory was 145.2MB in the beginning and 143.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.08ms. Allocated memory is still 188.7MB. Free memory was 143.1MB in the beginning and 141.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 346.88ms. Allocated memory is still 188.7MB. Free memory was 141.9MB in the beginning and 128.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 761.59ms. Allocated memory is still 188.7MB. Free memory was 127.2MB in the beginning and 100.8MB in the end (delta: 26.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.50ms. Allocated memory is still 188.7MB. Free memory was 100.8MB in the beginning and 99.9MB in the end (delta: 933.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 51]: 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 35, overapproximation of bitwiseOr at line 28, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L45] float x = 0.0f / 0.0f; [L46] float y = __VERIFIER_nondet_float(); [L47] CALL, EXPR copysign_float(x, y) [L15] __uint32_t ix, iy; VAL [unknown-#in~x-unknown=2147483666, unknown-#in~y-unknown=2147483665, x=2147483666, y=2147483665] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (y) [L24] EXPR gf_u.word [L24] (iy) = gf_u.word [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L31] return x; [L47] RET, EXPR copysign_float(x, y) [L47] float res = copysign_float(x, y); [L50] CALL, EXPR isnan_float(res) [L35] return x != x; [L50] RET, EXPR isnan_float(res) [L50] COND TRUE !isnan_float(res) [L51] reach_error() VAL [res=2147483664, x=2147483666, y=2147483665] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 9 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-23 14:29:59,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW --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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- 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-4e7fbc6 [2022-11-23 14:30:02,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:30:02,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:30:02,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:30:02,140 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:30:02,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:30:02,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:30:02,149 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:30:02,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:30:02,152 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:30:02,153 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:30:02,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:30:02,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:30:02,156 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:30:02,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:30:02,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:30:02,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:30:02,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:30:02,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:30:02,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:30:02,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:30:02,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:30:02,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:30:02,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:30:02,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:30:02,173 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:30:02,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:30:02,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:30:02,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:30:02,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:30:02,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:30:02,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:30:02,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:30:02,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:30:02,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:30:02,198 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:30:02,199 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:30:02,199 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:30:02,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:30:02,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:30:02,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:30:02,204 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-23 14:30:02,250 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:30:02,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:30:02,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:30:02,252 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:30:02,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:30:02,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:30:02,254 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:30:02,254 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:30:02,254 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:30:02,255 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:30:02,256 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:30:02,256 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:30:02,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:30:02,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 14:30:02,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 14:30:02,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:30:02,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:30:02,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:30:02,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:30:02,259 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:30:02,259 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:30:02,259 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:30:02,259 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 14:30:02,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:30:02,260 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:30:02,260 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:30:02,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:30:02,261 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:30:02,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:30:02,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:30:02,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:30:02,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:30:02,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:30:02,263 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:30:02,263 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:30:02,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:30:02,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:30:02,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:30:02,264 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_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2022-11-23 14:30:02,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:30:02,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:30:02,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:30:02,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:30:02,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:30:02,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-11-23 14:30:05,702 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:30:05,981 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:30:05,981 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-11-23 14:30:05,990 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data/e5ccb26b7/e2411ed108294a65bb488f000e56d75d/FLAG709161a10 [2022-11-23 14:30:06,014 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/data/e5ccb26b7/e2411ed108294a65bb488f000e56d75d [2022-11-23 14:30:06,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:30:06,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:30:06,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:30:06,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:30:06,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:30:06,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73c22bd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06, skipping insertion in model container [2022-11-23 14:30:06,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:30:06,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:30:06,302 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_81cc1f70-d57c-4c02-ad74-a732a626f819/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2022-11-23 14:30:06,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:30:06,325 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:30:06,360 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_81cc1f70-d57c-4c02-ad74-a732a626f819/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2022-11-23 14:30:06,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:30:06,384 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:30:06,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06 WrapperNode [2022-11-23 14:30:06,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:30:06,386 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:30:06,386 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:30:06,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:30:06,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,446 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-11-23 14:30:06,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:30:06,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:30:06,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:30:06,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:30:06,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,489 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:30:06,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:30:06,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:30:06,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:30:06,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (1/1) ... [2022-11-23 14:30:06,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:30:06,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:30:06,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:30:06,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:30:06,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 14:30:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-23 14:30:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 14:30:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-23 14:30:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-23 14:30:06,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:30:06,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:30:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-23 14:30:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-23 14:30:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 14:30:06,770 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:30:06,772 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:30:07,003 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:30:07,008 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:30:07,008 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 14:30:07,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:30:07 BoogieIcfgContainer [2022-11-23 14:30:07,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:30:07,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:30:07,012 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:30:07,016 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:30:07,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:30:06" (1/3) ... [2022-11-23 14:30:07,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3577892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:30:07, skipping insertion in model container [2022-11-23 14:30:07,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:06" (2/3) ... [2022-11-23 14:30:07,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3577892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:30:07, skipping insertion in model container [2022-11-23 14:30:07,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:30:07" (3/3) ... [2022-11-23 14:30:07,034 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2022-11-23 14:30:07,069 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:30:07,069 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:30:07,163 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:30:07,180 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;@76825d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:30:07,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:30:07,186 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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) [2022-11-23 14:30:07,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-23 14:30:07,193 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:07,193 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:07,194 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:07,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:07,210 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2022-11-23 14:30:07,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:07,225 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384522864] [2022-11-23 14:30:07,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:07,226 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 [2022-11-23 14:30:07,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:07,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:30:07,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:30:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:30:07,375 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-23 14:30:07,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:30:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:30:07,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:30:07,409 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:30:07,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384522864] [2022-11-23 14:30:07,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1384522864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:30:07,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:30:07,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 14:30:07,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233496110] [2022-11-23 14:30:07,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:30:07,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 14:30:07,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:30:07,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 14:30:07,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:30:07,479 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 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 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-23 14:30:07,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:30:07,497 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2022-11-23 14:30:07,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 14:30:07,500 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-23 14:30:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:30:07,508 INFO L225 Difference]: With dead ends: 32 [2022-11-23 14:30:07,508 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 14:30:07,512 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 14:30:07,517 INFO L413 NwaCegarLoop]: 16 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, 16 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 [2022-11-23 14:30:07,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:30:07,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 14:30:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-23 14:30:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 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) [2022-11-23 14:30:07,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-11-23 14:30:07,553 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2022-11-23 14:30:07,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:30:07,554 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-11-23 14:30:07,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-23 14:30:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-11-23 14:30:07,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-23 14:30:07,556 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:30:07,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 14:30:07,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:30:07,778 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:30:07,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:30:07,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:30:07,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2022-11-23 14:30:07,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:30:07,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [514806979] [2022-11-23 14:30:07,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:30:07,786 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 [2022-11-23 14:30:07,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:30:07,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:30:07,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-23 14:30:07,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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)] Forceful destruction successful, exit code 139 [2022-11-23 14:30:08,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:30:08,115 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-23 14:30:08,118 INFO L158 Benchmark]: Toolchain (without parser) took 2094.77ms. Allocated memory is still 69.2MB. Free memory was 48.3MB in the beginning and 37.8MB in the end (delta: 10.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-11-23 14:30:08,118 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:30:08,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.05ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 36.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:30:08,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.30ms. Allocated memory is still 69.2MB. Free memory was 36.7MB in the beginning and 35.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:30:08,120 INFO L158 Benchmark]: Boogie Preprocessor took 58.97ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 33.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:30:08,121 INFO L158 Benchmark]: RCFGBuilder took 502.52ms. Allocated memory is still 69.2MB. Free memory was 33.5MB in the beginning and 39.7MB in the end (delta: -6.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-23 14:30:08,121 INFO L158 Benchmark]: TraceAbstraction took 1105.07ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 37.8MB in the end (delta: 1.0MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-23 14:30:08,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory is still 35.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.05ms. Allocated memory is still 69.2MB. Free memory was 47.9MB in the beginning and 36.9MB in the end (delta: 11.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.30ms. Allocated memory is still 69.2MB. Free memory was 36.7MB in the beginning and 35.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.97ms. Allocated memory is still 69.2MB. Free memory was 35.2MB in the beginning and 33.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 502.52ms. Allocated memory is still 69.2MB. Free memory was 33.5MB in the beginning and 39.7MB in the end (delta: -6.2MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1105.07ms. Allocated memory is still 69.2MB. Free memory was 38.9MB in the beginning and 37.8MB in the end (delta: 1.0MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-23 14:30:08,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81cc1f70-d57c-4c02-ad74-a732a626f819/bin/utaipan-Q6hlc19bkW/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) with exit command (exit)) Received EOF on stdin. No stderr output.