./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P --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 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:18:13,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:18:13,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:18:13,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:18:13,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:18:13,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:18:13,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:18:13,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:18:13,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:18:13,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:18:13,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:18:13,371 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:18:13,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:18:13,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:18:13,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:18:13,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:18:13,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:18:13,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:18:13,391 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:18:13,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:18:13,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:18:13,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:18:13,406 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:18:13,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:18:13,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:18:13,417 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:18:13,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:18:13,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:18:13,419 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:18:13,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:18:13,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:18:13,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:18:13,422 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:18:13,423 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:18:13,425 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:18:13,425 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:18:13,426 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:18:13,426 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:18:13,426 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:18:13,427 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:18:13,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:18:13,429 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:18:13,466 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:18:13,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:18:13,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:18:13,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:18:13,468 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:18:13,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:18:13,469 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:18:13,469 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:18:13,469 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:18:13,469 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:18:13,470 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:18:13,471 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:18:13,471 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:18:13,471 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:18:13,471 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:18:13,472 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:18:13,472 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:18:13,472 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:18:13,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:18:13,473 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:18:13,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:18:13,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:18:13,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:18:13,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:18:13,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:18:13,475 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:18:13,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:18:13,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:18:13,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:18:13,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:18:13,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:18:13,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:18:13,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:18:13,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:18:13,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:18:13,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:18:13,479 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:18:13,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:18:13,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:18:13,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:18:13,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:18:13,480 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 [2021-11-21 01:18:13,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:18:13,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:18:13,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:18:13,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:18:13,790 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:18:13,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-11-21 01:18:13,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/fa79572e6/b73332f750d84275ba55db1cb71dd257/FLAG0a734560e [2021-11-21 01:18:14,298 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:18:14,299 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-11-21 01:18:14,306 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/fa79572e6/b73332f750d84275ba55db1cb71dd257/FLAG0a734560e [2021-11-21 01:18:14,683 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/fa79572e6/b73332f750d84275ba55db1cb71dd257 [2021-11-21 01:18:14,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:18:14,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:18:14,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:18:14,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:18:14,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:18:14,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:18:14" (1/1) ... [2021-11-21 01:18:14,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47087e1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:14, skipping insertion in model container [2021-11-21 01:18:14,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:18:14" (1/1) ... [2021-11-21 01:18:14,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:18:14,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:18:14,969 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_545ead88-5f87-482d-8b02-f7a833c47ab0/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-11-21 01:18:14,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:18:14,979 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:18:15,044 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_545ead88-5f87-482d-8b02-f7a833c47ab0/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-11-21 01:18:15,045 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:18:15,064 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:18:15,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15 WrapperNode [2021-11-21 01:18:15,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:18:15,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:18:15,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:18:15,071 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:18:15,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,130 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-11-21 01:18:15,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:18:15,135 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:18:15,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:18:15,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:18:15,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,174 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:18:15,187 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:18:15,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:18:15,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:18:15,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (1/1) ... [2021-11-21 01:18:15,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:18:15,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:18:15,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:18:15,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:18:15,253 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:18:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:18:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:18:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:18:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 01:18:15,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 01:18:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:18:15,255 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:18:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:18:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-21 01:18:15,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:18:15,346 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:18:15,348 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:18:15,701 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:18:15,757 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:18:15,758 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 01:18:15,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:18:15 BoogieIcfgContainer [2021-11-21 01:18:15,765 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:18:15,766 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:18:15,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:18:15,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:18:15,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:18:14" (1/3) ... [2021-11-21 01:18:15,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f196f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:18:15, skipping insertion in model container [2021-11-21 01:18:15,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:15" (2/3) ... [2021-11-21 01:18:15,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f196f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:18:15, skipping insertion in model container [2021-11-21 01:18:15,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:18:15" (3/3) ... [2021-11-21 01:18:15,774 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-11-21 01:18:15,779 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:18:15,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:18:15,852 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:18:15,859 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:18:15,860 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:18:15,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 39 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 38 states have internal predecessors, (64), 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) [2021-11-21 01:18:15,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:18:15,881 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:15,882 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:15,882 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:18:15,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:15,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1844308852, now seen corresponding path program 1 times [2021-11-21 01:18:15,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:18:15,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704999668] [2021-11-21 01:18:15,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:15,900 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:18:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:16,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:16,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:18:16,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704999668] [2021-11-21 01:18:16,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704999668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:16,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:18:16,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:18:16,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305521806] [2021-11-21 01:18:16,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:16,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:18:16,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:18:16,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:18:16,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:18:16,070 INFO L87 Difference]: Start difference. First operand has 39 states, 37 states have (on average 1.7297297297297298) internal successors, (64), 38 states have internal predecessors, (64), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 01:18:16,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:16,106 INFO L93 Difference]: Finished difference Result 77 states and 127 transitions. [2021-11-21 01:18:16,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:18:16,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-11-21 01:18:16,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:16,118 INFO L225 Difference]: With dead ends: 77 [2021-11-21 01:18:16,119 INFO L226 Difference]: Without dead ends: 36 [2021-11-21 01:18:16,121 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:18:16,125 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:16,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:18:16,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-21 01:18:16,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-21 01:18:16,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.3714285714285714) internal successors, (48), 35 states have internal predecessors, (48), 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) [2021-11-21 01:18:16,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 48 transitions. [2021-11-21 01:18:16,159 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 48 transitions. Word has length 11 [2021-11-21 01:18:16,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:16,160 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 48 transitions. [2021-11-21 01:18:16,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-21 01:18:16,160 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2021-11-21 01:18:16,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 01:18:16,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:16,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:16,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:18:16,162 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:18:16,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:16,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1596074528, now seen corresponding path program 1 times [2021-11-21 01:18:16,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:18:16,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316333985] [2021-11-21 01:18:16,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:16,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:18:16,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:18:16,246 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:18:16,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:18:16,361 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:18:16,361 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:18:16,366 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:18:16,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:18:16,375 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 01:18:16,380 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:18:16,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:18:16 BoogieIcfgContainer [2021-11-21 01:18:16,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:18:16,424 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:18:16,424 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:18:16,425 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:18:16,425 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:18:15" (3/4) ... [2021-11-21 01:18:16,428 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:18:16,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:18:16,430 INFO L158 Benchmark]: Toolchain (without parser) took 1741.22ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 47.5MB in the beginning and 55.2MB in the end (delta: -7.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2021-11-21 01:18:16,431 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 64.1MB in the beginning and 64.1MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:18:16,434 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.86ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 47.3MB in the beginning and 79.3MB in the end (delta: -32.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2021-11-21 01:18:16,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.91ms. Allocated memory is still 104.9MB. Free memory was 79.3MB in the beginning and 77.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:18:16,439 INFO L158 Benchmark]: Boogie Preprocessor took 51.03ms. Allocated memory is still 104.9MB. Free memory was 77.1MB in the beginning and 75.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:18:16,442 INFO L158 Benchmark]: RCFGBuilder took 578.18ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 59.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 01:18:16,443 INFO L158 Benchmark]: TraceAbstraction took 656.86ms. Allocated memory is still 104.9MB. Free memory was 58.7MB in the beginning and 55.2MB in the end (delta: 3.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2021-11-21 01:18:16,443 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 104.9MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:18:16,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 83.9MB. Free memory was 64.1MB in the beginning and 64.1MB in the end (delta: 29.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.86ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 47.3MB in the beginning and 79.3MB in the end (delta: -32.0MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.91ms. Allocated memory is still 104.9MB. Free memory was 79.3MB in the beginning and 77.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.03ms. Allocated memory is still 104.9MB. Free memory was 77.1MB in the beginning and 75.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.18ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 59.3MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 656.86ms. Allocated memory is still 104.9MB. Free memory was 58.7MB in the beginning and 55.2MB in the end (delta: 3.5MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 104.9MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L128] float x = __VERIFIER_nondet_float(); [L129] float y = -1.0f / 0.0f; [L131] CALL isfinite_float(x) [L111] __int32_t ix; VAL [\old(x)=8589934593, one_fmod=1, x=8589934593, Zero_fmod={4:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); [L131] RET isfinite_float(x) [L131] COND TRUE isfinite_float(x) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=8589934593, \old(y)=8589934592, one_fmod=1, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=8589934593, \old(y)=8589934592, one_fmod=1, sx=-1, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=8589934593, \old(y)=8589934592, hx=2139095040, hy=0, one_fmod=1, sx=-1, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, res=8589934591, x=8589934593, y=8589934592, Zero_fmod={4:0}] [L137] reach_error() VAL [one_fmod=1, res=8589934591, x=8589934593, y=8589934592, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 42 mSDtfsCounter, 10 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=39occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-11-21 01:18:16,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P --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 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:18:19,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:18:19,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:18:19,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:18:19,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:18:19,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:18:19,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:18:19,333 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:18:19,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:18:19,344 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:18:19,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:18:19,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:18:19,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:18:19,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:18:19,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:18:19,357 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:18:19,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:18:19,360 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:18:19,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:18:19,374 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:18:19,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:18:19,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:18:19,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:18:19,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:18:19,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:18:19,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:18:19,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:18:19,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:18:19,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:18:19,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:18:19,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:18:19,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:18:19,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:18:19,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:18:19,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:18:19,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:18:19,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:18:19,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:18:19,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:18:19,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:18:19,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:18:19,408 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:18:19,456 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:18:19,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:18:19,457 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:18:19,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:18:19,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:18:19,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:18:19,459 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:18:19,459 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:18:19,460 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:18:19,460 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:18:19,461 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:18:19,461 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:18:19,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:18:19,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:18:19,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:18:19,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:18:19,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:18:19,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:18:19,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:18:19,465 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:18:19,465 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:18:19,465 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:18:19,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:18:19,465 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:18:19,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:18:19,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:18:19,466 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:18:19,466 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:18:19,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:18:19,467 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:18:19,467 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:18:19,467 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:18:19,468 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:18:19,468 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:18:19,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:18:19,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:18:19,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:18:19,469 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_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 [2021-11-21 01:18:19,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:18:19,921 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:18:19,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:18:19,925 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:18:19,925 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:18:19,926 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-11-21 01:18:20,009 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/868959f24/65945854c57a44cbb9fdd632294b8ffd/FLAG113efd88d [2021-11-21 01:18:20,634 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:18:20,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2021-11-21 01:18:20,646 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/868959f24/65945854c57a44cbb9fdd632294b8ffd/FLAG113efd88d [2021-11-21 01:18:20,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/data/868959f24/65945854c57a44cbb9fdd632294b8ffd [2021-11-21 01:18:20,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:18:20,953 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:18:20,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:18:20,955 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:18:20,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:18:20,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:18:20" (1/1) ... [2021-11-21 01:18:20,964 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29625528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:20, skipping insertion in model container [2021-11-21 01:18:20,964 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:18:20" (1/1) ... [2021-11-21 01:18:20,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:18:21,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:18:21,184 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_545ead88-5f87-482d-8b02-f7a833c47ab0/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-11-21 01:18:21,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:18:21,201 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:18:21,273 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_545ead88-5f87-482d-8b02-f7a833c47ab0/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2021-11-21 01:18:21,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:18:21,292 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:18:21,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21 WrapperNode [2021-11-21 01:18:21,298 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:18:21,299 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:18:21,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:18:21,300 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:18:21,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,321 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,350 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2021-11-21 01:18:21,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:18:21,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:18:21,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:18:21,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:18:21,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,368 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,397 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:18:21,398 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:18:21,398 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:18:21,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:18:21,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (1/1) ... [2021-11-21 01:18:21,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:18:21,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:18:21,437 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:18:21,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:18:21,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:18:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-21 01:18:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:18:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:18:21,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-21 01:18:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:18:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:18:21,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:18:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-21 01:18:21,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:18:21,495 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:18:21,606 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:18:21,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:18:23,690 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:18:23,697 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:18:23,698 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 01:18:23,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:18:23 BoogieIcfgContainer [2021-11-21 01:18:23,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:18:23,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:18:23,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:18:23,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:18:23,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:18:20" (1/3) ... [2021-11-21 01:18:23,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3441e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:18:23, skipping insertion in model container [2021-11-21 01:18:23,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:18:21" (2/3) ... [2021-11-21 01:18:23,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3441e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:18:23, skipping insertion in model container [2021-11-21 01:18:23,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:18:23" (3/3) ... [2021-11-21 01:18:23,709 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2021-11-21 01:18:23,714 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:18:23,715 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:18:23,764 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:18:23,772 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:18:23,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:18:23,788 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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) [2021-11-21 01:18:23,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:18:23,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:23,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:23,795 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:18:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2021-11-21 01:18:23,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:18:23,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711166364] [2021-11-21 01:18:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:23,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:18:23,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:18:23,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:18:23,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:18:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:24,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:18:24,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:24,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:18:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:24,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:18:24,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711166364] [2021-11-21 01:18:24,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711166364] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:24,403 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:18:24,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:18:24,406 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761634450] [2021-11-21 01:18:24,407 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:24,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:18:24,412 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:18:24,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:18:24,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:18:24,450 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:18:24,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:24,487 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2021-11-21 01:18:24,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:18:24,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 01:18:24,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:24,502 INFO L225 Difference]: With dead ends: 92 [2021-11-21 01:18:24,502 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 01:18:24,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:18:24,512 INFO L933 BasicCegarLoop]: 63 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, 63 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 [2021-11-21 01:18:24,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:18:24,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 01:18:24,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 01:18:24,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 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) [2021-11-21 01:18:24,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2021-11-21 01:18:24,592 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2021-11-21 01:18:24,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:24,593 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2021-11-21 01:18:24,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:18:24,594 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2021-11-21 01:18:24,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-21 01:18:24,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:24,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:24,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:18:24,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:18:24,812 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:18:24,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:24,813 INFO L85 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2021-11-21 01:18:24,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:18:24,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [906451249] [2021-11-21 01:18:24,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:24,815 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:18:24,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:18:24,819 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:18:24,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:18:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:25,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-21 01:18:25,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:25,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-21 01:18:26,217 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-21 01:18:26,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 55 treesize of output 42 [2021-11-21 01:18:26,555 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:18:26,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 24 [2021-11-21 01:18:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:27,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:18:30,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:30,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:18:30,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [906451249] [2021-11-21 01:18:30,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [906451249] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:30,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:18:30,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-21 01:18:30,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279558750] [2021-11-21 01:18:30,262 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:30,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-21 01:18:30,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:18:30,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-21 01:18:30,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:18:30,266 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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) [2021-11-21 01:18:30,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:30,478 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2021-11-21 01:18:30,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:18:30,480 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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 16 [2021-11-21 01:18:30,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:30,481 INFO L225 Difference]: With dead ends: 47 [2021-11-21 01:18:30,481 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 01:18:30,481 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:18:30,483 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 1 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 493 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 88 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:30,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 493 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 50 Invalid, 0 Unknown, 88 Unchecked, 0.2s Time] [2021-11-21 01:18:30,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 01:18:30,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 01:18:30,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 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) [2021-11-21 01:18:30,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2021-11-21 01:18:30,491 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16 [2021-11-21 01:18:30,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:30,492 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2021-11-21 01:18:30,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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) [2021-11-21 01:18:30,493 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2021-11-21 01:18:30,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-21 01:18:30,493 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:30,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:30,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:18:30,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:18:30,707 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:18:30,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:30,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1123581797, now seen corresponding path program 1 times [2021-11-21 01:18:30,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:18:30,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [843571506] [2021-11-21 01:18:30,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:30,709 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:18:30,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:18:30,710 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:18:30,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 01:18:30,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:30,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 01:18:30,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:31,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:18:32,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:32,600 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:18:32,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [843571506] [2021-11-21 01:18:32,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [843571506] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:32,600 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:18:32,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-11-21 01:18:32,601 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099702845] [2021-11-21 01:18:32,601 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:32,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-21 01:18:32,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:18:32,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-21 01:18:32,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:18:32,603 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2021-11-21 01:18:33,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:33,066 INFO L93 Difference]: Finished difference Result 47 states and 60 transitions. [2021-11-21 01:18:33,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 01:18:33,067 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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 17 [2021-11-21 01:18:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:33,067 INFO L225 Difference]: With dead ends: 47 [2021-11-21 01:18:33,067 INFO L226 Difference]: Without dead ends: 43 [2021-11-21 01:18:33,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=259, Unknown=0, NotChecked=0, Total=342 [2021-11-21 01:18:33,069 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 110 mSDsluCounter, 291 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:33,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 341 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 26 Unchecked, 0.1s Time] [2021-11-21 01:18:33,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-21 01:18:33,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-21 01:18:33,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 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) [2021-11-21 01:18:33,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2021-11-21 01:18:33,076 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 17 [2021-11-21 01:18:33,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:33,076 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2021-11-21 01:18:33,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 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) [2021-11-21 01:18:33,076 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2021-11-21 01:18:33,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:18:33,077 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:33,077 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:33,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:18:33,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:18:33,287 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:18:33,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:33,288 INFO L85 PathProgramCache]: Analyzing trace with hash 469119878, now seen corresponding path program 1 times [2021-11-21 01:18:33,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:18:33,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1836055800] [2021-11-21 01:18:33,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:33,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:18:33,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:18:33,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:18:33,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 01:18:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:33,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:18:33,392 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:33,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:33,842 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:18:35,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:35,879 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:18:35,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1836055800] [2021-11-21 01:18:35,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1836055800] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:35,880 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:18:35,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-21 01:18:35,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149326354] [2021-11-21 01:18:35,880 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:35,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:18:35,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:18:35,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:18:35,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:18:35,882 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-11-21 01:18:35,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:35,885 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2021-11-21 01:18:35,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:18:35,885 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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 18 [2021-11-21 01:18:35,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:35,885 INFO L225 Difference]: With dead ends: 43 [2021-11-21 01:18:35,885 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 01:18:35,886 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:18:35,887 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:35,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-21 01:18:35,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 01:18:35,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 01:18:35,891 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) [2021-11-21 01:18:35,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 01:18:35,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-21 01:18:35,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:35,891 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 01:18:35,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 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) [2021-11-21 01:18:35,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 01:18:35,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 01:18:35,894 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:18:35,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-21 01:18:36,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:18:36,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 01:18:36,452 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2021-11-21 01:18:36,452 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2021-11-21 01:18:36,452 INFO L858 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2021-11-21 01:18:36,452 INFO L858 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2021-11-21 01:18:36,452 INFO L854 garLoopResultBuilder]: At program point L118(lines 110 119) the Hoare annotation is: (and (or (not (bvslt (bvand (_ bv2147483647 32) |ULTIMATE.start_isfinite_float_~ix~1#1|) (_ bv2139095040 32))) (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (let ((.cse0 (bvslt (bvand (_ bv2147483647 32) .cse1) (_ bv2139095040 32)))) (or (and .cse0 (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv1 32))) (and (not .cse0) (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv0 32))))) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_main_~x~0#1|)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|))) [2021-11-21 01:18:36,452 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2021-11-21 01:18:36,453 INFO L858 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L854 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (and (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|))) [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (bvslt (bvand (_ bv2147483647 32) .cse0) (_ bv2139095040 32)) (= |ULTIMATE.start_fmod_float_~x#1| (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~y#1|)) (= |ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_main_~x~0#1|)) [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-11-21 01:18:36,454 INFO L858 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2021-11-21 01:18:36,455 INFO L854 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_isfinite_float_~ix~1#1_11| (_ BitVec 32))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|) ((_ extract 30 23) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|) ((_ extract 22 0) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|)) |ULTIMATE.start_main_~x~0#1|) (bvslt (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isfinite_float_~ix~1#1_11|) (_ bv2139095040 32)))) (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_fmod_float_#res#1|)) [2021-11-21 01:18:36,455 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-11-21 01:18:36,455 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2021-11-21 01:18:36,455 INFO L858 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2021-11-21 01:18:36,455 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 01:18:36,455 INFO L858 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2021-11-21 01:18:36,455 INFO L854 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2021-11-21 01:18:36,455 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L854 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L854 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2021-11-21 01:18:36,456 INFO L858 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2021-11-21 01:18:36,457 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2021-11-21 01:18:36,457 INFO L854 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2021-11-21 01:18:36,457 INFO L858 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2021-11-21 01:18:36,457 INFO L861 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2021-11-21 01:18:36,457 INFO L858 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2021-11-21 01:18:36,457 INFO L854 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2021-11-21 01:18:36,462 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-21 01:18:36,464 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:18:36,472 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,473 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,473 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,474 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,480 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,481 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,483 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,483 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,483 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,483 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,483 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,484 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,484 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,485 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,486 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,486 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,486 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,486 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,487 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,487 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,488 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,489 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,490 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:18:36 BoogieIcfgContainer [2021-11-21 01:18:36,491 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:18:36,492 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:18:36,492 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:18:36,492 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:18:36,493 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:18:23" (3/4) ... [2021-11-21 01:18:36,496 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 01:18:36,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-11-21 01:18:36,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-21 01:18:36,508 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 01:18:36,509 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 01:18:36,533 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == x && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) [2021-11-21 01:18:36,533 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!~bvslt32(~bvand32(2147483647bv32, ix), 2139095040bv32) || ~fp.eq~FLOAT(x, x)) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ((~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 1bv32) || (!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 0bv32)) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0]) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) [2021-11-21 01:18:36,534 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0])) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y)) && x == x [2021-11-21 01:18:36,544 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:18:36,544 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:18:36,545 INFO L158 Benchmark]: Toolchain (without parser) took 15592.34ms. Allocated memory was 65.0MB in the beginning and 100.7MB in the end (delta: 35.7MB). Free memory was 44.9MB in the beginning and 54.5MB in the end (delta: -9.7MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,545 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory is still 46.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:18:36,546 INFO L158 Benchmark]: CACSL2BoogieTranslator took 343.97ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 46.5MB in the end (delta: -1.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.92ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 44.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,547 INFO L158 Benchmark]: Boogie Preprocessor took 45.72ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 42.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,547 INFO L158 Benchmark]: RCFGBuilder took 2301.68ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 42.4MB in the beginning and 62.2MB in the end (delta: -19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,548 INFO L158 Benchmark]: TraceAbstraction took 12789.39ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 61.8MB in the beginning and 57.5MB in the end (delta: 4.3MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,548 INFO L158 Benchmark]: Witness Printer took 52.67ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 54.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:18:36,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 65.0MB. Free memory is still 46.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 343.97ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 46.5MB in the end (delta: -1.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.92ms. Allocated memory is still 65.0MB. Free memory was 46.3MB in the beginning and 44.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.72ms. Allocated memory is still 65.0MB. Free memory was 44.3MB in the beginning and 42.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2301.68ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 42.4MB in the beginning and 62.2MB in the end (delta: -19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 12789.39ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 61.8MB in the beginning and 57.5MB in the end (delta: 4.3MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 52.67ms. Allocated memory is still 100.7MB. Free memory was 57.5MB in the beginning and 54.5MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. 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[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,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_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,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_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,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_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,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] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,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: 137]: 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 111 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 111 mSDsluCounter, 965 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 122 IncrementalHoareTripleChecker+Unchecked, 794 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 72 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 171 mSDtfsCounter, 72 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 123 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 159 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 120 ConstructedInterpolants, 53 QuantifiedInterpolants, 1788 SizeOfPredicates, 36 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2021-11-21 01:18:36,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,565 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,566 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,566 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,566 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,567 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,568 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && x == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0])) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y)) && x == x - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2021-11-21 01:18:36,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,569 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,570 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,571 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,571 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,571 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,571 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,571 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:18:36,572 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,572 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((!~bvslt32(~bvand32(2147483647bv32, ix), 2139095040bv32) || ~fp.eq~FLOAT(x, x)) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5 : bv32 :: ((~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 1bv32) || (!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32]), 2139095040bv32) && \result == 0bv32)) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_5][0bv32][22:0]) == x)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 112]: Loop Invariant [2021-11-21 01:18:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 01:18:36,573 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: x == x && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 19]: Loop Invariant [2021-11-21 01:18:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,574 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] [2021-11-21 01:18:36,575 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_11,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_isfinite_float_~ix~1#1_11 : bv32 :: ~fp~LONGDOUBLE(v_ULTIMATE.start_isfinite_float_~ix~1#1_11[31:31], v_ULTIMATE.start_isfinite_float_~ix~1#1_11[30:23], v_ULTIMATE.start_isfinite_float_~ix~1#1_11[22:0]) == x && ~bvslt32(~bvand32(2147483647bv32, v_ULTIMATE.start_isfinite_float_~ix~1#1_11), 2139095040bv32)) && x == \result RESULT: Ultimate proved your program to be correct! [2021-11-21 01:18:36,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_545ead88-5f87-482d-8b02-f7a833c47ab0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE