./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI --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 14d22f17681e24ff9bf077eb5f196519a9b5019c8fb9285b97a7644c12cebe77 --- 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-5e519f3 [2022-11-03 02:39:52,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:39:52,417 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:39:52,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:39:52,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:39:52,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:39:52,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:39:52,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:39:52,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:39:52,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:39:52,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:39:52,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:39:52,487 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:39:52,489 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:39:52,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:39:52,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:39:52,495 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:39:52,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:39:52,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:39:52,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:39:52,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:39:52,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:39:52,512 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:39:52,513 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:39:52,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:39:52,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:39:52,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:39:52,524 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:39:52,524 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:39:52,525 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:39:52,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:39:52,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:39:52,529 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:39:52,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:39:52,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:39:52,532 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:39:52,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:39:52,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:39:52,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:39:52,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:39:52,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:39:52,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 02:39:52,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:39:52,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:39:52,575 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:39:52,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:39:52,576 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:39:52,576 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:39:52,576 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:39:52,576 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:39:52,577 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:39:52,577 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:39:52,578 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:39:52,578 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:39:52,578 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:39:52,578 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:39:52,579 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:39:52,579 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:39:52,579 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:39:52,579 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:39:52,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:39:52,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:39:52,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:39:52,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:39:52,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:39:52,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:39:52,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:39:52,583 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:39:52,583 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:39:52,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:39:52,583 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:39:52,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:39:52,584 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:39:52,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:39:52,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:52,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:39:52,585 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:39:52,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:39:52,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:39:52,585 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:39:52,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:39:52,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:39:52,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:39:52,586 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14d22f17681e24ff9bf077eb5f196519a9b5019c8fb9285b97a7644c12cebe77 [2022-11-03 02:39:52,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:39:52,905 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:39:52,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:39:52,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:39:52,910 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:39:52,911 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2022-11-03 02:39:53,001 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/84fa968b4/de528bcb57824861aab892b8e9166915/FLAG5a70a79f0 [2022-11-03 02:39:53,555 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:39:53,555 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2022-11-03 02:39:53,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/84fa968b4/de528bcb57824861aab892b8e9166915/FLAG5a70a79f0 [2022-11-03 02:39:53,870 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/84fa968b4/de528bcb57824861aab892b8e9166915 [2022-11-03 02:39:53,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:39:53,874 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:39:53,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:39:53,876 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:39:53,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:39:53,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:39:53" (1/1) ... [2022-11-03 02:39:53,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a6fba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:53, skipping insertion in model container [2022-11-03 02:39:53,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:39:53" (1/1) ... [2022-11-03 02:39:53,890 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:39:53,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:39:54,159 WARN L230 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2022-11-03 02:39:54,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:39:54,171 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:39:54,211 WARN L230 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2022-11-03 02:39:54,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:39:54,227 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:39:54,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54 WrapperNode [2022-11-03 02:39:54,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:39:54,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:39:54,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:39:54,229 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:39:54,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,300 INFO L138 Inliner]: procedures = 17, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2022-11-03 02:39:54,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:39:54,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:39:54,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:39:54,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:39:54,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,362 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:39:54,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:39:54,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:39:54,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:39:54,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (1/1) ... [2022-11-03 02:39:54,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:54,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:39:54,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:39:54,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:39:54,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:39:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:39:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:39:54,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-03 02:39:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:39:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-03 02:39:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:39:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:39:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:39:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:39:54,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:39:54,622 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:39:55,096 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:39:55,213 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:39:55,216 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-03 02:39:55,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:39:55 BoogieIcfgContainer [2022-11-03 02:39:55,219 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:39:55,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:39:55,222 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:39:55,226 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:39:55,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:39:53" (1/3) ... [2022-11-03 02:39:55,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2dbe32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:39:55, skipping insertion in model container [2022-11-03 02:39:55,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:39:54" (2/3) ... [2022-11-03 02:39:55,228 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a2dbe32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:39:55, skipping insertion in model container [2022-11-03 02:39:55,228 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:39:55" (3/3) ... [2022-11-03 02:39:55,230 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2022-11-03 02:39:55,251 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:39:55,251 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:39:55,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:39:55,358 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;@441195d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:39:55,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:39:55,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2022-11-03 02:39:55,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:39:55,371 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:55,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:55,373 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:55,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:55,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1544195697, now seen corresponding path program 1 times [2022-11-03 02:39:55,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:55,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606017526] [2022-11-03 02:39:55,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:55,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:55,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:39:55,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:39:55,728 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:39:55,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606017526] [2022-11-03 02:39:55,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606017526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:39:55,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:39:55,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:39:55,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563139350] [2022-11-03 02:39:55,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:39:55,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:39:55,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:39:55,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:39:55,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:39:55,783 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.7) internal successors, (34), 21 states have internal predecessors, (34), 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) [2022-11-03 02:39:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:39:55,847 INFO L93 Difference]: Finished difference Result 43 states and 67 transitions. [2022-11-03 02:39:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:39:55,850 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 [2022-11-03 02:39:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:39:55,859 INFO L225 Difference]: With dead ends: 43 [2022-11-03 02:39:55,859 INFO L226 Difference]: Without dead ends: 20 [2022-11-03 02:39:55,867 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 [2022-11-03 02:39:55,872 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:39:55,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:39:55,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-03 02:39:55,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-03 02:39:55,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 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) [2022-11-03 02:39:55,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2022-11-03 02:39:55,917 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 10 [2022-11-03 02:39:55,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:39:55,919 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2022-11-03 02:39:55,920 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) [2022-11-03 02:39:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-11-03 02:39:55,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:39:55,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:39:55,921 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:39:55,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:39:55,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:39:55,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:39:55,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1170194359, now seen corresponding path program 1 times [2022-11-03 02:39:55,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:39:55,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273995837] [2022-11-03 02:39:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:39:55,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:39:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:39:56,311 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 02:39:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 02:39:56,481 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 02:39:56,481 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 02:39:56,483 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:39:56,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:39:56,489 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 02:39:56,493 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:39:56,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:39:56 BoogieIcfgContainer [2022-11-03 02:39:56,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:39:56,522 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:39:56,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:39:56,523 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:39:56,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:39:55" (3/4) ... [2022-11-03 02:39:56,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 02:39:56,527 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:39:56,528 INFO L158 Benchmark]: Toolchain (without parser) took 2653.89ms. Allocated memory is still 140.5MB. Free memory was 106.2MB in the beginning and 101.5MB in the end (delta: 4.7MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2022-11-03 02:39:56,529 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 72.3MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:39:56,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.38ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 114.0MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:39:56,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.29ms. Allocated memory is still 140.5MB. Free memory was 114.0MB in the beginning and 110.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:39:56,531 INFO L158 Benchmark]: Boogie Preprocessor took 63.56ms. Allocated memory is still 140.5MB. Free memory was 110.4MB in the beginning and 107.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 02:39:56,531 INFO L158 Benchmark]: RCFGBuilder took 847.77ms. Allocated memory is still 140.5MB. Free memory was 107.7MB in the beginning and 74.7MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-03 02:39:56,532 INFO L158 Benchmark]: TraceAbstraction took 1300.45ms. Allocated memory is still 140.5MB. Free memory was 74.2MB in the beginning and 101.8MB in the end (delta: -27.6MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. [2022-11-03 02:39:56,532 INFO L158 Benchmark]: Witness Printer took 4.90ms. Allocated memory is still 140.5MB. Free memory was 101.8MB in the beginning and 101.5MB in the end (delta: 380.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:39:56,540 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 72.3MB in the beginning and 72.3MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.38ms. Allocated memory is still 140.5MB. Free memory was 105.9MB in the beginning and 114.0MB in the end (delta: -8.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.29ms. Allocated memory is still 140.5MB. Free memory was 114.0MB in the beginning and 110.4MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.56ms. Allocated memory is still 140.5MB. Free memory was 110.4MB in the beginning and 107.8MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 847.77ms. Allocated memory is still 140.5MB. Free memory was 107.7MB in the beginning and 74.7MB in the end (delta: 33.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1300.45ms. Allocated memory is still 140.5MB. Free memory was 74.2MB in the beginning and 101.8MB in the end (delta: -27.6MB). Peak memory consumption was 16.7MB. Max. memory is 16.1GB. * Witness Printer took 4.90ms. Allocated memory is still 140.5MB. Free memory was 101.8MB in the beginning and 101.5MB in the end (delta: 380.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 139]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 29, overapproximation of someUnaryDOUBLEoperation at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; [L134] double x = -0.0; [L135] CALL, EXPR __ieee754_log(x) [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [\old(x)=18014398509481996, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481996, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [\old(x)=18014398509481996, hx=7, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481996, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481996, hx=7, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481996, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [\old(x)=18014398509481996, hx=7, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, lx=0, two54_log=18014398509481984, x=18014398509481996, zero=0] [L135] RET, EXPR __ieee754_log(x) [L135] double res = __ieee754_log(x); [L138] CALL, EXPR isinf_double(res) [L21] __int32_t hx, lx; VAL [\old(x)=18014398509481995, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, x=18014398509481995, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L138] RET, EXPR isinf_double(res) [L138] COND TRUE !isinf_double(res) [L139] reach_error() VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, res=18014398509481995, two54_log=18014398509481984, x=18014398509481996, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, 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, 21 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 21 mSDtfsCounter, 4 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=22occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2022-11-03 02:39:56,605 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI --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 14d22f17681e24ff9bf077eb5f196519a9b5019c8fb9285b97a7644c12cebe77 --- 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-5e519f3 [2022-11-03 02:39:59,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:39:59,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:39:59,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:39:59,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:39:59,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:39:59,145 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:39:59,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:39:59,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:39:59,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:39:59,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:39:59,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:39:59,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:39:59,171 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:39:59,173 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:39:59,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:39:59,176 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:39:59,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:39:59,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:39:59,187 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:39:59,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:39:59,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:39:59,195 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:39:59,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:39:59,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:39:59,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:39:59,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:39:59,208 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:39:59,209 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:39:59,211 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:39:59,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:39:59,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:39:59,216 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:39:59,217 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:39:59,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:39:59,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:39:59,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:39:59,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:39:59,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:39:59,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:39:59,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:39:59,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 02:39:59,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:39:59,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:39:59,269 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:39:59,269 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:39:59,270 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:39:59,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:39:59,271 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:39:59,271 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:39:59,271 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:39:59,271 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:39:59,273 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:39:59,273 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:39:59,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:39:59,275 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 02:39:59,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 02:39:59,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:39:59,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:39:59,276 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:39:59,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:39:59,276 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:39:59,276 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:39:59,277 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:39:59,277 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 02:39:59,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:39:59,277 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:39:59,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:39:59,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:39:59,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:39:59,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:39:59,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:39:59,279 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:39:59,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:39:59,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:39:59,280 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:39:59,280 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:39:59,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:39:59,281 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:39:59,281 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:39:59,281 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14d22f17681e24ff9bf077eb5f196519a9b5019c8fb9285b97a7644c12cebe77 [2022-11-03 02:39:59,694 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:39:59,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:39:59,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:39:59,728 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:39:59,729 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:39:59,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2022-11-03 02:39:59,809 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/f6a99cc31/620733a0ec864572937369b632c250af/FLAGeab14abf1 [2022-11-03 02:40:00,443 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:40:00,444 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c [2022-11-03 02:40:00,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/f6a99cc31/620733a0ec864572937369b632c250af/FLAGeab14abf1 [2022-11-03 02:40:00,812 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/data/f6a99cc31/620733a0ec864572937369b632c250af [2022-11-03 02:40:00,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:40:00,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:40:00,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:00,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:40:00,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:40:00,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:00" (1/1) ... [2022-11-03 02:40:00,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@581e80b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:00, skipping insertion in model container [2022-11-03 02:40:00,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:40:00" (1/1) ... [2022-11-03 02:40:00,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:40:00,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:40:01,087 WARN L230 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2022-11-03 02:40:01,101 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:01,123 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:40:01,193 WARN L230 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_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/sv-benchmarks/c/float-newlib/double_req_bl_0910b.c[3599,3612] [2022-11-03 02:40:01,193 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:40:01,226 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:40:01,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01 WrapperNode [2022-11-03 02:40:01,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:40:01,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:01,228 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:40:01,228 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:40:01,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,299 INFO L138 Inliner]: procedures = 20, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 164 [2022-11-03 02:40:01,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:40:01,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:40:01,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:40:01,303 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:40:01,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,360 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:40:01,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:40:01,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:40:01,375 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:40:01,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (1/1) ... [2022-11-03 02:40:01,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:40:01,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:40:01,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:40:01,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:40:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:40:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-03 02:40:01,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-03 02:40:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:40:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:40:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 02:40:01,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:40:01,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:40:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 02:40:01,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:40:01,571 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:40:01,573 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:40:23,772 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:40:23,781 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:40:23,781 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-03 02:40:23,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:23 BoogieIcfgContainer [2022-11-03 02:40:23,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:40:23,787 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:40:23,788 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:40:23,792 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:40:23,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:40:00" (1/3) ... [2022-11-03 02:40:23,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae7dd27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:40:23, skipping insertion in model container [2022-11-03 02:40:23,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:40:01" (2/3) ... [2022-11-03 02:40:23,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae7dd27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:40:23, skipping insertion in model container [2022-11-03 02:40:23,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:23" (3/3) ... [2022-11-03 02:40:23,796 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0910b.c [2022-11-03 02:40:23,819 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:40:23,819 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:40:23,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:40:23,887 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;@3e85513f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:40:23,887 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:40:23,894 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 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) [2022-11-03 02:40:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-03 02:40:23,902 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:23,903 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:23,904 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:23,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:23,911 INFO L85 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2022-11-03 02:40:23,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:40:23,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119986601] [2022-11-03 02:40:23,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:23,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:40:23,927 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:40:23,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:40:23,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:40:24,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:25,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 02:40:25,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:25,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:40:25,031 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:40:25,032 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:40:25,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119986601] [2022-11-03 02:40:25,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119986601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:25,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:25,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:40:25,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209888742] [2022-11-03 02:40:25,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:25,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 02:40:25,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:40:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 02:40:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:40:25,077 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7) internal successors, (51), 31 states have internal predecessors, (51), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:25,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:25,095 INFO L93 Difference]: Finished difference Result 62 states and 100 transitions. [2022-11-03 02:40:25,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 02:40:25,097 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-03 02:40:25,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:25,108 INFO L225 Difference]: With dead ends: 62 [2022-11-03 02:40:25,108 INFO L226 Difference]: Without dead ends: 29 [2022-11-03 02:40:25,111 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 02:40:25,115 INFO L413 NwaCegarLoop]: 42 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, 42 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 [2022-11-03 02:40:25,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:40:25,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-03 02:40:25,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-03 02:40:25,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3928571428571428) internal successors, (39), 28 states have internal predecessors, (39), 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) [2022-11-03 02:40:25,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2022-11-03 02:40:25,154 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2022-11-03 02:40:25,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:25,155 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2022-11-03 02:40:25,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:25,156 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-11-03 02:40:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:40:25,157 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:25,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:25,182 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-03 02:40:25,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:40:25,365 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:25,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:25,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2022-11-03 02:40:25,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:40:25,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206555328] [2022-11-03 02:40:25,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:25,368 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:40:25,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:40:25,370 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:40:25,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:40:26,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:26,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-03 02:40:26,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:40:28,987 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:40:28,988 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:40:28,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [206555328] [2022-11-03 02:40:28,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [206555328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:28,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:28,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 02:40:28,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318058635] [2022-11-03 02:40:28,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:28,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:40:28,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:40:28,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:40:28,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:40:28,993 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:32,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:36,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:39,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:41,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:43,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:46,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:48,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:50,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:53,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:55,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:40:55,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:40:55,558 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2022-11-03 02:40:55,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 02:40:55,614 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:40:55,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:40:55,615 INFO L225 Difference]: With dead ends: 38 [2022-11-03 02:40:55,615 INFO L226 Difference]: Without dead ends: 30 [2022-11-03 02:40:55,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:40:55,617 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 15 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 47 IncrementalHoareTripleChecker+Unchecked, 26.1s IncrementalHoareTripleChecker+Time [2022-11-03 02:40:55,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 145 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 9 Unknown, 47 Unchecked, 26.1s Time] [2022-11-03 02:40:55,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-03 02:40:55,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-11-03 02:40:55,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3571428571428572) internal successors, (38), 28 states have internal predecessors, (38), 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) [2022-11-03 02:40:55,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2022-11-03 02:40:55,624 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 14 [2022-11-03 02:40:55,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:40:55,625 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2022-11-03 02:40:55,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 7 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:55,625 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-11-03 02:40:55,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-03 02:40:55,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:40:55,626 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:40:55,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:40:55,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:40:55,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:40:55,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:40:55,828 INFO L85 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2022-11-03 02:40:55,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:40:55,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967750493] [2022-11-03 02:40:55,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:40:55,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:40:55,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:40:55,830 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:40:55,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:40:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:40:56,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:40:56,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:40:56,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:40:56,566 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:40:56,567 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:40:56,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967750493] [2022-11-03 02:40:56,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967750493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:40:56,568 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:40:56,568 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:40:56,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596421445] [2022-11-03 02:40:56,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:40:56,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:40:56,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:40:56,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:40:56,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:40:56,570 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:40:59,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:01,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-03 02:41:01,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:01,959 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2022-11-03 02:41:01,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:41:01,970 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-03 02:41:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:01,970 INFO L225 Difference]: With dead ends: 48 [2022-11-03 02:41:01,971 INFO L226 Difference]: Without dead ends: 29 [2022-11-03 02:41:01,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:01,973 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 3 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:01,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 84 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 2 Unknown, 11 Unchecked, 5.2s Time] [2022-11-03 02:41:01,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-03 02:41:01,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-03 02:41:01,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 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) [2022-11-03 02:41:01,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 37 transitions. [2022-11-03 02:41:01,979 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 37 transitions. Word has length 14 [2022-11-03 02:41:01,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:01,979 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 37 transitions. [2022-11-03 02:41:01,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:01,980 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-11-03 02:41:01,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-03 02:41:01,980 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:41:01,981 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:41:01,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:41:02,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:41:02,197 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:41:02,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:41:02,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1126164636, now seen corresponding path program 1 times [2022-11-03 02:41:02,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:41:02,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1631033284] [2022-11-03 02:41:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:41:02,198 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:41:02,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:41:02,200 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:41:02,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:41:03,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:41:03,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-03 02:41:03,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:41:03,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:41:03,962 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:41:03,962 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:41:03,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1631033284] [2022-11-03 02:41:03,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1631033284] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:41:03,963 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:41:03,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 02:41:03,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694520254] [2022-11-03 02:41:03,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:41:03,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:41:03,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:41:03,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:41:03,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 02:41:03,966 INFO L87 Difference]: Start difference. First operand 29 states and 37 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-03 02:41:04,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:41:04,134 INFO L93 Difference]: Finished difference Result 29 states and 37 transitions. [2022-11-03 02:41:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:41:04,135 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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 15 [2022-11-03 02:41:04,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:41:04,136 INFO L225 Difference]: With dead ends: 29 [2022-11-03 02:41:04,136 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:41:04,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:41:04,138 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:41:04,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2022-11-03 02:41:04,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:41:04,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:41:04,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 02:41:04,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:41:04,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2022-11-03 02:41:04,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:41:04,141 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:41:04,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-03 02:41:04,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:41:04,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:41:04,145 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:41:04,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-03 02:41:04,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:41:04,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 02:41:04,821 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 72) no Hoare annotation was computed. [2022-11-03 02:41:04,822 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 47 126) no Hoare annotation was computed. [2022-11-03 02:41:04,822 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 52 57) no Hoare annotation was computed. [2022-11-03 02:41:04,822 INFO L895 garLoopResultBuilder]: At program point L52-2(lines 52 57) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0) (= |ULTIMATE.start___ieee754_log_~x#1| (fp.neg (_ +zero 11 53))) (= (_ +zero 11 53) ~zero~0)) [2022-11-03 02:41:04,822 INFO L899 garLoopResultBuilder]: For program point L52-3(lines 52 57) no Hoare annotation was computed. [2022-11-03 02:41:04,822 INFO L902 garLoopResultBuilder]: At program point L143(lines 128 144) the Hoare annotation is: true [2022-11-03 02:41:04,823 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-03 02:41:04,823 INFO L899 garLoopResultBuilder]: For program point L61(lines 61 62) no Hoare annotation was computed. [2022-11-03 02:41:04,823 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-03 02:41:04,823 INFO L899 garLoopResultBuilder]: For program point L86(lines 86 102) no Hoare annotation was computed. [2022-11-03 02:41:04,823 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 78 83) no Hoare annotation was computed. [2022-11-03 02:41:04,823 INFO L895 garLoopResultBuilder]: At program point L78-2(lines 78 83) the Hoare annotation is: false [2022-11-03 02:41:04,823 INFO L899 garLoopResultBuilder]: For program point L78-3(lines 78 83) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L87(lines 87 94) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L96(lines 96 101) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 64) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L121(lines 121 124) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 93) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 27) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)) |ULTIMATE.start_isinf_double_~x#1|)) [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2022-11-03 02:41:04,824 INFO L899 garLoopResultBuilder]: For program point L113(lines 113 125) no Hoare annotation was computed. [2022-11-03 02:41:04,825 INFO L899 garLoopResultBuilder]: For program point L138(lines 138 141) no Hoare annotation was computed. [2022-11-03 02:41:04,825 INFO L895 garLoopResultBuilder]: At program point L31(lines 20 32) the Hoare annotation is: (exists ((|v_skolemized_q#valueAsBitvector_11| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (bvadd (bvneg (bvlshr (let ((.cse0 (bvadd (bvneg (bvor (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_11|)) (bvlshr (let ((.cse1 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_11|))) (bvor .cse1 (bvneg .cse1))) (_ bv31 32)))) (_ bv2146435072 32)))) (bvor (bvneg .cse0) .cse0)) (_ bv31 32))) (_ bv1 32)) |ULTIMATE.start_isinf_double_#res#1|) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_11|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_11|)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53))))) [2022-11-03 02:41:04,825 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2022-11-03 02:41:04,825 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-03 02:41:04,826 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 139) no Hoare annotation was computed. [2022-11-03 02:41:04,826 INFO L899 garLoopResultBuilder]: For program point L115(lines 115 119) no Hoare annotation was computed. [2022-11-03 02:41:04,826 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 02:41:04,826 INFO L895 garLoopResultBuilder]: At program point L124(lines 47 126) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0) ~two54_log~0) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start___ieee754_log_#res#1| (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 18014398509481984.0)) (_ +zero 11 53)))) (= (_ +zero 11 53) ~zero~0)) [2022-11-03 02:41:04,826 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2022-11-03 02:41:04,827 INFO L895 garLoopResultBuilder]: At program point L67-2(lines 67 71) the Hoare annotation is: false [2022-11-03 02:41:04,830 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-03 02:41:04,833 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 02:41:04,852 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,862 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 02:41:04 BoogieIcfgContainer [2022-11-03 02:41:04,863 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 02:41:04,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 02:41:04,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 02:41:04,864 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 02:41:04,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:40:23" (3/4) ... [2022-11-03 02:41:04,867 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 02:41:04,879 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-11-03 02:41:04,879 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-03 02:41:04,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 02:41:04,880 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 02:41:04,906 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()))) && ~Pluszero~LONGDOUBLE() == zero [2022-11-03 02:41:04,907 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == x) [2022-11-03 02:41:04,908 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_skolemized_q#valueAsBitvector_11 : bv64, currentRoundingMode : FloatRoundingMode :: ~bvadd64(~bvneg64(~bvlshr32(~bvor32(~bvneg64(~bvadd64(~bvneg64(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_11[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_11[31:0], ~bvneg64(v_skolemized_q#valueAsBitvector_11[31:0])), 31bv32))), 2146435072bv32)), ~bvadd64(~bvneg64(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_11[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_11[31:0], ~bvneg64(v_skolemized_q#valueAsBitvector_11[31:0])), 31bv32))), 2146435072bv32)), 31bv32)), 1bv32) == \result && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) [2022-11-03 02:41:04,927 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 02:41:04,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 02:41:04,928 INFO L158 Benchmark]: Toolchain (without parser) took 64112.09ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 44.0MB in the beginning and 60.9MB in the end (delta: -16.8MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2022-11-03 02:41:04,928 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 45.9MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:41:04,929 INFO L158 Benchmark]: CACSL2BoogieTranslator took 409.57ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 44.8MB in the end (delta: -926.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 02:41:04,929 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.97ms. Allocated memory is still 65.0MB. Free memory was 44.8MB in the beginning and 42.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:41:04,929 INFO L158 Benchmark]: Boogie Preprocessor took 61.45ms. Allocated memory is still 65.0MB. Free memory was 42.5MB in the beginning and 40.5MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:41:04,930 INFO L158 Benchmark]: RCFGBuilder took 22409.37ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 40.5MB in the beginning and 64.3MB in the end (delta: -23.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-11-03 02:41:04,930 INFO L158 Benchmark]: TraceAbstraction took 41075.18ms. Allocated memory is still 86.0MB. Free memory was 63.9MB in the beginning and 65.1MB in the end (delta: -1.2MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-11-03 02:41:04,931 INFO L158 Benchmark]: Witness Printer took 64.11ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 60.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-03 02:41:04,933 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory was 46.0MB in the beginning and 45.9MB in the end (delta: 92.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 409.57ms. Allocated memory is still 65.0MB. Free memory was 43.9MB in the beginning and 44.8MB in the end (delta: -926.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.97ms. Allocated memory is still 65.0MB. Free memory was 44.8MB in the beginning and 42.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 61.45ms. Allocated memory is still 65.0MB. Free memory was 42.5MB in the beginning and 40.5MB in the end (delta: 2.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 22409.37ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 40.5MB in the beginning and 64.3MB in the end (delta: -23.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * TraceAbstraction took 41075.18ms. Allocated memory is still 86.0MB. Free memory was 63.9MB in the beginning and 65.1MB in the end (delta: -1.2MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Witness Printer took 64.11ms. Allocated memory is still 86.0MB. Free memory was 65.1MB in the beginning and 60.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 139]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 32.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 31.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 277 SdHoareTripleChecker+Invalid, 29.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 60 IncrementalHoareTripleChecker+Unchecked, 171 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 106 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 103 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 51 ConstructedInterpolants, 13 QuantifiedInterpolants, 406 SizeOfPredicates, 22 NumberOfNonLiveVariables, 257 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == zero - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 47]: Loop Invariant [2022-11-03 02:41:04,946 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,946 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,946 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,947 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.8014398509481984E16) == two54_log && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()))) && ~Pluszero~LONGDOUBLE() == zero - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant [2022-11-03 02:41:04,947 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,948 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,949 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,950 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,951 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_11,QUANTIFIED] [2022-11-03 02:41:04,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,952 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists v_skolemized_q#valueAsBitvector_11 : bv64, currentRoundingMode : FloatRoundingMode :: ~bvadd64(~bvneg64(~bvlshr32(~bvor32(~bvneg64(~bvadd64(~bvneg64(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_11[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_11[31:0], ~bvneg64(v_skolemized_q#valueAsBitvector_11[31:0])), 31bv32))), 2146435072bv32)), ~bvadd64(~bvneg64(~bvor32(~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_11[63:32]), ~bvlshr32(~bvor32(v_skolemized_q#valueAsBitvector_11[31:0], ~bvneg64(v_skolemized_q#valueAsBitvector_11[31:0])), 31bv32))), 2146435072bv32)), 31bv32)), 1bv32) == \result && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_11[63:63], v_skolemized_q#valueAsBitvector_11[62:52], v_skolemized_q#valueAsBitvector_11[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2022-11-03 02:41:04,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,953 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-11-03 02:41:04,954 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.8014398509481984E16)), ~Pluszero~LONGDOUBLE()) == x) RESULT: Ultimate proved your program to be correct! [2022-11-03 02:41:05,181 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-11-03 02:41:05,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3f9fb57-187f-415f-a1c7-87fe3b981ee7/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE