./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl --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 ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:06:52,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:06:52,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:06:52,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:06:52,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:06:52,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:06:52,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:06:52,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:06:52,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:06:52,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:06:52,249 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:06:52,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:06:52,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:06:52,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:06:52,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:06:52,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:06:52,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:06:52,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:06:52,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:06:52,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:06:52,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:06:52,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:06:52,289 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:06:52,290 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:06:52,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:06:52,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:06:52,302 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:06:52,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:06:52,305 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:06:52,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:06:52,307 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:06:52,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:06:52,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:06:52,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:06:52,314 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:06:52,314 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:06:52,315 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:06:52,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:06:52,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:06:52,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:06:52,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:06:52,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:06:52,372 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:06:52,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:06:52,373 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:06:52,374 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:06:52,375 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:06:52,383 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:06:52,383 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:06:52,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:06:52,384 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:06:52,384 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:06:52,385 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:06:52,385 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:06:52,386 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:06:52,386 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:06:52,386 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:06:52,387 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:06:52,387 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:06:52,387 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:06:52,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:06:52,389 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:06:52,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:06:52,390 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:06:52,390 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:06:52,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:06:52,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:06:52,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:06:52,391 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:06:52,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:06:52,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:06:52,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:06:52,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:06:52,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:06:52,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:52,393 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:06:52,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:06:52,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:06:52,394 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:06:52,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:06:52,394 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:06:52,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:06:52,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:06:52,395 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_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b [2021-11-23 17:06:52,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:06:52,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:06:52,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:06:52,851 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:06:52,852 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:06:52,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2021-11-23 17:06:52,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/f3670e94a/6a3b2a34c8e34558adc0d5bb4b808ec2/FLAG86a6e10f1 [2021-11-23 17:06:53,596 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:06:53,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2021-11-23 17:06:53,605 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/f3670e94a/6a3b2a34c8e34558adc0d5bb4b808ec2/FLAG86a6e10f1 [2021-11-23 17:06:53,979 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/f3670e94a/6a3b2a34c8e34558adc0d5bb4b808ec2 [2021-11-23 17:06:53,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:06:53,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:06:53,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:53,987 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:06:53,991 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:06:53,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:53" (1/1) ... [2021-11-23 17:06:53,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2da8b233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:53, skipping insertion in model container [2021-11-23 17:06:53,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:53" (1/1) ... [2021-11-23 17:06:54,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:06:54,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:06:54,262 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_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2021-11-23 17:06:54,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:54,276 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:06:54,307 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_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2021-11-23 17:06:54,308 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:54,326 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:06:54,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54 WrapperNode [2021-11-23 17:06:54,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:54,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:54,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:06:54,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:06:54,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,374 INFO L137 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-23 17:06:54,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:54,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:06:54,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:06:54,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:06:54,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,408 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:06:54,413 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:06:54,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:06:54,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:06:54,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:54" (1/1) ... [2021-11-23 17:06:54,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:54,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:06:54,455 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:06:54,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:06:54,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:06:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:06:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:06:54,506 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 17:06:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:06:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 17:06:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:06:54,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:06:54,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:06:54,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:06:54,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:06:54,604 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:06:54,779 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:06:54,799 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:06:54,805 INFO L158 Benchmark]: Toolchain (without parser) took 819.72ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 62.7MB in the end (delta: 2.7MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2021-11-23 17:06:54,806 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:06:54,807 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.36ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 77.4MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:06:54,808 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.56ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 76.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:06:54,810 INFO L158 Benchmark]: Boogie Preprocessor took 36.14ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 74.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:06:54,811 INFO L158 Benchmark]: RCFGBuilder took 389.77ms. Allocated memory is still 102.8MB. Free memory was 74.4MB in the beginning and 62.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:06:54,816 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.36ms. Allocated memory is still 102.8MB. Free memory was 65.2MB in the beginning and 77.4MB in the end (delta: -12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.56ms. Allocated memory is still 102.8MB. Free memory was 77.4MB in the beginning and 76.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.14ms. Allocated memory is still 102.8MB. Free memory was 76.0MB in the beginning and 74.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.77ms. Allocated memory is still 102.8MB. Free memory was 74.4MB in the beginning and 62.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:06:54,885 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl --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 ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:06:57,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:06:57,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:06:57,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:06:57,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:06:57,749 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:06:57,752 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:06:57,757 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:06:57,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:06:57,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:06:57,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:06:57,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:06:57,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:06:57,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:06:57,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:06:57,784 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:06:57,785 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:06:57,787 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:06:57,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:06:57,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:06:57,795 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:06:57,800 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:06:57,802 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:06:57,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:06:57,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:06:57,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:06:57,817 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:06:57,819 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:06:57,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:06:57,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:06:57,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:06:57,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:06:57,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:06:57,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:06:57,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:06:57,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:06:57,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:06:57,829 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:06:57,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:06:57,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:06:57,835 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:06:57,836 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:06:57,896 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:06:57,897 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:06:57,898 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:06:57,898 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:06:57,899 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:06:57,900 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:06:57,900 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:06:57,900 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:06:57,900 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:06:57,901 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:06:57,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:06:57,902 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:06:57,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:06:57,904 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:06:57,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:06:57,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:06:57,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:06:57,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:06:57,906 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:06:57,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:06:57,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:06:57,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:06:57,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:06:57,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:06:57,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:06:57,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:06:57,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:06:57,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:06:57,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:06:57,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:06:57,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:06:57,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:06:57,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:06:57,910 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:06:57,910 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:06:57,910 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:06:57,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:06:57,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:06:57,911 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_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef387b9dfe6a568fd7853720ccee1caca2dc0e11798e2bafc997da20a8b7d09b [2021-11-23 17:06:58,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:06:58,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:06:58,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:06:58,455 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:06:58,456 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:06:58,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2021-11-23 17:06:58,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/081e501f5/c754a12a6f634b7f8a293d417b8e09ab/FLAG8abf27b6b [2021-11-23 17:06:59,234 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:06:59,235 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c [2021-11-23 17:06:59,245 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/081e501f5/c754a12a6f634b7f8a293d417b8e09ab/FLAG8abf27b6b [2021-11-23 17:06:59,546 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/data/081e501f5/c754a12a6f634b7f8a293d417b8e09ab [2021-11-23 17:06:59,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:06:59,552 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:06:59,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:59,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:06:59,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:06:59,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:06:59,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@671e9387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59, skipping insertion in model container [2021-11-23 17:06:59,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:06:59,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:06:59,601 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:06:59,798 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_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2021-11-23 17:06:59,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:59,830 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:06:59,922 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_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/sv-benchmarks/c/float-newlib/float_req_bl_1032b.c[1753,1766] [2021-11-23 17:06:59,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:06:59,951 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:06:59,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59 WrapperNode [2021-11-23 17:06:59,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:06:59,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:06:59,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:06:59,955 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:06:59,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:06:59,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,022 INFO L137 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-23 17:07:00,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:07:00,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:07:00,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:07:00,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:07:00,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,045 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,073 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:07:00,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:07:00,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:07:00,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:07:00,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (1/1) ... [2021-11-23 17:07:00,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:07:00,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:07:00,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:07:00,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:07:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:07:00,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:07:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:07:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 17:07:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:07:00,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:07:00,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:07:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 17:07:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:07:00,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:07:00,328 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:07:00,330 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:07:00,660 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:07:00,668 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:07:00,668 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-23 17:07:00,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:07:00 BoogieIcfgContainer [2021-11-23 17:07:00,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:07:00,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:07:00,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:07:00,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:07:00,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:06:59" (1/3) ... [2021-11-23 17:07:00,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b57a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:07:00, skipping insertion in model container [2021-11-23 17:07:00,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:06:59" (2/3) ... [2021-11-23 17:07:00,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b57a33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:07:00, skipping insertion in model container [2021-11-23 17:07:00,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:07:00" (3/3) ... [2021-11-23 17:07:00,680 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032b.c [2021-11-23 17:07:00,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:07:00,687 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:07:00,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:07:00,799 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 [2021-11-23 17:07:00,799 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:07:00,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:00,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 17:07:00,830 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:00,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:07:00,832 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:00,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:00,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2021-11-23 17:07:00,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:00,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623959484] [2021-11-23 17:07:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:00,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:00,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:00,863 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:00,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:07:00,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:07:00,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:07:01,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:07:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:07:01,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:07:01,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:07:01,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623959484] [2021-11-23 17:07:01,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623959484] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:07:01,071 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:07:01,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:07:01,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002813888] [2021-11-23 17:07:01,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:07:01,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:07:01,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:07:01,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:07:01,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:07:01,128 INFO L87 Difference]: Start difference. First operand has 25 states, 23 states have (on average 1.608695652173913) internal successors, (37), 24 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:01,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:07:01,156 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2021-11-23 17:07:01,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:07:01,159 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 17:07:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:07:01,172 INFO L225 Difference]: With dead ends: 48 [2021-11-23 17:07:01,172 INFO L226 Difference]: Without dead ends: 22 [2021-11-23 17:07:01,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:07:01,184 INFO L933 BasicCegarLoop]: 30 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, 30 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 [2021-11-23 17:07:01,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:07:01,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-23 17:07:01,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-23 17:07:01,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 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) [2021-11-23 17:07:01,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2021-11-23 17:07:01,250 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2021-11-23 17:07:01,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:07:01,251 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2021-11-23 17:07:01,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:01,252 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2021-11-23 17:07:01,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 17:07:01,254 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:01,254 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:07:01,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:07:01,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:01,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:01,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:01,486 INFO L85 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2021-11-23 17:07:01,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:01,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269856205] [2021-11-23 17:07:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:01,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:01,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:01,494 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:01,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:07:01,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:07:01,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 17:07:01,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:07:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:07:01,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:07:01,802 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:07:01,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269856205] [2021-11-23 17:07:01,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269856205] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:07:01,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:07:01,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:07:01,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975956662] [2021-11-23 17:07:01,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:07:01,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:07:01,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:07:01,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:07:01,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:07:01,813 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-11-23 17:07:01,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:07:01,907 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2021-11-23 17:07:01,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:07:01,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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 [2021-11-23 17:07:01,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:07:01,909 INFO L225 Difference]: With dead ends: 31 [2021-11-23 17:07:01,909 INFO L226 Difference]: Without dead ends: 21 [2021-11-23 17:07:01,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:07:01,912 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:07:01,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-23 17:07:01,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-23 17:07:01,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-11-23 17:07:01,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2021-11-23 17:07:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-23 17:07:01,924 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2021-11-23 17:07:01,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:07:01,925 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-23 17:07:01,925 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 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) [2021-11-23 17:07:01,926 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-23 17:07:01,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 17:07:01,926 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:01,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:07:01,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 17:07:02,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:02,141 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:02,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:02,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1636973854, now seen corresponding path program 1 times [2021-11-23 17:07:02,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:02,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1042993985] [2021-11-23 17:07:02,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:02,151 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:02,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:02,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:07:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:07:02,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 17:07:02,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:07:02,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:07:02,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:07:02,439 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:07:02,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1042993985] [2021-11-23 17:07:02,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1042993985] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:07:02,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:07:02,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:07:02,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424348387] [2021-11-23 17:07:02,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:07:02,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:07:02,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:07:02,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:07:02,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:07:02,443 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:02,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:07:02,511 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2021-11-23 17:07:02,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 17:07:02,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 17:07:02,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:07:02,513 INFO L225 Difference]: With dead ends: 33 [2021-11-23 17:07:02,513 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 17:07:02,514 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:07:02,516 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:07:02,517 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 57 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-11-23 17:07:02,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 17:07:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-23 17:07:02,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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) [2021-11-23 17:07:02,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2021-11-23 17:07:02,523 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2021-11-23 17:07:02,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:07:02,523 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2021-11-23 17:07:02,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:02,524 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-11-23 17:07:02,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 17:07:02,525 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:02,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:07:02,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:07:02,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:02,745 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:02,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash 812441883, now seen corresponding path program 1 times [2021-11-23 17:07:02,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:02,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [630078695] [2021-11-23 17:07:02,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:02,747 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:02,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:02,756 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:02,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:07:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:07:02,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 17:07:02,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:07:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:07:03,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:07:03,046 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:07:03,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [630078695] [2021-11-23 17:07:03,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [630078695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:07:03,047 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:07:03,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:07:03,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434419916] [2021-11-23 17:07:03,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:07:03,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:07:03,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:07:03,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:07:03,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:07:03,050 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:03,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:07:03,132 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2021-11-23 17:07:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 17:07:03,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 17:07:03,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:07:03,135 INFO L225 Difference]: With dead ends: 32 [2021-11-23 17:07:03,136 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 17:07:03,136 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:07:03,142 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:07:03,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-23 17:07:03,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 17:07:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-23 17:07:03,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 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) [2021-11-23 17:07:03,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-11-23 17:07:03,156 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 15 [2021-11-23 17:07:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:07:03,156 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-11-23 17:07:03,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-11-23 17:07:03,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 17:07:03,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:03,161 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:07:03,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:07:03,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:03,368 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:03,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2021-11-23 17:07:03,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:03,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [355822977] [2021-11-23 17:07:03,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:03,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:03,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:03,382 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:03,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:07:03,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:07:03,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-23 17:07:03,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:07:03,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:07:03,672 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:07:03,672 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:07:03,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [355822977] [2021-11-23 17:07:03,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [355822977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:07:03,673 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:07:03,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 17:07:03,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998818748] [2021-11-23 17:07:03,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:07:03,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 17:07:03,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:07:03,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 17:07:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:07:03,682 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:03,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:07:03,695 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-23 17:07:03,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 17:07:03,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-23 17:07:03,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:07:03,697 INFO L225 Difference]: With dead ends: 23 [2021-11-23 17:07:03,697 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 17:07:03,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 17:07:03,699 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:07:03,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 60 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 12 Unchecked, 0.0s Time] [2021-11-23 17:07:03,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 17:07:03,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-23 17:07:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.0) internal successors, (19), 19 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:03,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2021-11-23 17:07:03,719 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2021-11-23 17:07:03,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:07:03,720 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2021-11-23 17:07:03,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:03,720 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2021-11-23 17:07:03,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 17:07:03,721 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:07:03,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:07:03,760 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:07:03,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:03,949 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:07:03,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:07:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2021-11-23 17:07:03,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:07:03,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903934813] [2021-11-23 17:07:03,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:07:03,951 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:07:03,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:07:03,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:07:03,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 17:07:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:07:04,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 17:07:04,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:07:04,141 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 11 treesize of output 7 [2021-11-23 17:07:04,348 INFO L354 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2021-11-23 17:07:04,348 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 38 treesize of output 25 [2021-11-23 17:07:04,644 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 17:07:04,645 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 61 treesize of output 29 [2021-11-23 17:07:04,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:07:04,970 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:07:04,971 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:07:04,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903934813] [2021-11-23 17:07:04,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903934813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:07:04,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:07:04,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-23 17:07:04,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200518303] [2021-11-23 17:07:04,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:07:04,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-23 17:07:04,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:07:04,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-23 17:07:04,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:07:04,975 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:05,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:07:05,068 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2021-11-23 17:07:05,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 17:07:05,069 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 17:07:05,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:07:05,071 INFO L225 Difference]: With dead ends: 20 [2021-11-23 17:07:05,071 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:07:05,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-23 17:07:05,074 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:07:05,076 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 48 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2021-11-23 17:07:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:07:05,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:07:05,077 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) [2021-11-23 17:07:05,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:07:05,077 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-11-23 17:07:05,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:07:05,078 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:07:05,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 11 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:07:05,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:07:05,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:07:05,081 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:07:05,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:07:05,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:07:05,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:07:05,349 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 48) no Hoare annotation was computed. [2021-11-23 17:07:05,350 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2021-11-23 17:07:05,350 INFO L854 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 (fp.neg (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13|) (_ bv0 32)) .cse1) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|))))) |ULTIMATE.start_main_#t~short9#1|) [2021-11-23 17:07:05,351 INFO L858 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2021-11-23 17:07:05,351 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-23 17:07:05,351 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start_round_float_~x#1|) [2021-11-23 17:07:05,351 INFO L858 garLoopResultBuilder]: For program point L81(line 81) no Hoare annotation was computed. [2021-11-23 17:07:05,351 INFO L858 garLoopResultBuilder]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2021-11-23 17:07:05,352 INFO L858 garLoopResultBuilder]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2021-11-23 17:07:05,352 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:07:05,352 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:07:05,352 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:07:05,352 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 41) no Hoare annotation was computed. [2021-11-23 17:07:05,353 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-11-23 17:07:05,353 INFO L861 garLoopResultBuilder]: At program point L86(lines 69 87) the Hoare annotation is: true [2021-11-23 17:07:05,353 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-23 17:07:05,353 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-11-23 17:07:05,354 INFO L858 garLoopResultBuilder]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2021-11-23 17:07:05,354 INFO L858 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-11-23 17:07:05,354 INFO L854 garLoopResultBuilder]: At program point L66(lines 57 67) the Hoare annotation is: (and (exists ((|ULTIMATE.start___signbit_float_~w~1#1| (_ BitVec 32))) (and (exists ((v_arrayElimCell_3 (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) v_arrayElimCell_3) ((_ extract 30 23) v_arrayElimCell_3) ((_ extract 22 0) v_arrayElimCell_3)))) (and (= .cse0 (fp.neg (_ +zero 8 24))) (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 30 23) |ULTIMATE.start___signbit_float_~w~1#1|) ((_ extract 22 0) |ULTIMATE.start___signbit_float_~w~1#1|)))))) (let ((.cse1 (= (bvand (_ bv2147483648 32) |ULTIMATE.start___signbit_float_~w~1#1|) (_ bv0 32)))) (or (and (= |ULTIMATE.start___signbit_float_#res#1| (_ bv0 32)) .cse1) (and (not .cse1) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32))))))) |ULTIMATE.start_main_#t~short9#1|) [2021-11-23 17:07:05,354 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:07:05,355 INFO L854 garLoopResultBuilder]: At program point L54(lines 14 55) the Hoare annotation is: (exists ((|v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9| (_ BitVec 32)) (|v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9|) (_ bv0 32)))) (let ((.cse0 (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (and (= .cse0 (fp.neg (_ +zero 8 24))) (= (select (select |#memory_int| |v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13|) (_ bv0 32)) .cse1) (= .cse0 |ULTIMATE.start_round_float_#res#1|))))) [2021-11-23 17:07:05,357 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2021-11-23 17:07:05,357 INFO L858 garLoopResultBuilder]: For program point L43(lines 43 47) no Hoare annotation was computed. [2021-11-23 17:07:05,357 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 37) no Hoare annotation was computed. [2021-11-23 17:07:05,361 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-23 17:07:05,365 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:07:05,380 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,382 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,383 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,386 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,386 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,387 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,392 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,393 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,400 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,401 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,403 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,404 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,406 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,410 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,411 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:07:05 BoogieIcfgContainer [2021-11-23 17:07:05,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:07:05,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:07:05,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:07:05,419 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:07:05,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:07:00" (3/4) ... [2021-11-23 17:07:05,424 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:07:05,437 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-23 17:07:05,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-23 17:07:05,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:07:05,438 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:07:05,467 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result) [2021-11-23 17:07:05,468 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2021-11-23 17:07:05,468 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___signbit_float_~w~1#1 : bv32 :: (\exists v_arrayElimCell_3 : bv32 :: ~fp~LONGDOUBLE(v_arrayElimCell_3[31:31], v_arrayElimCell_3[30:23], v_arrayElimCell_3[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(v_arrayElimCell_3[31:31], v_arrayElimCell_3[30:23], v_arrayElimCell_3[22:0]) == ~fp~LONGDOUBLE(ULTIMATE.start___signbit_float_~w~1#1[31:31], ULTIMATE.start___signbit_float_~w~1#1[30:23], ULTIMATE.start___signbit_float_~w~1#1[22:0])) && ((\result == 0bv32 && ~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1) == 0bv32) || (!(~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1) == 0bv32) && \result == 1bv32))) && aux-res == -0.0f && __signbit_float(res) == 1-aux [2021-11-23 17:07:05,481 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:07:05,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:07:05,483 INFO L158 Benchmark]: Toolchain (without parser) took 5930.51ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 45.6MB in the beginning and 47.1MB in the end (delta: -1.4MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2021-11-23 17:07:05,483 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 45.0MB in the end (delta: 57.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:07:05,484 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.26ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 46.1MB in the end (delta: -566.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:07:05,484 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.90ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 44.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:07:05,485 INFO L158 Benchmark]: Boogie Preprocessor took 81.27ms. Allocated memory is still 62.9MB. Free memory was 44.2MB in the beginning and 42.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:07:05,485 INFO L158 Benchmark]: RCFGBuilder took 564.95ms. Allocated memory is still 62.9MB. Free memory was 42.6MB in the beginning and 31.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:07:05,486 INFO L158 Benchmark]: TraceAbstraction took 4746.13ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 30.7MB in the beginning and 50.5MB in the end (delta: -19.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-11-23 17:07:05,486 INFO L158 Benchmark]: Witness Printer took 62.69ms. Allocated memory is still 88.1MB. Free memory was 50.5MB in the beginning and 47.1MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:07:05,489 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 62.9MB. Free memory was 45.1MB in the beginning and 45.0MB in the end (delta: 57.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.26ms. Allocated memory is still 62.9MB. Free memory was 45.5MB in the beginning and 46.1MB in the end (delta: -566.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.90ms. Allocated memory is still 62.9MB. Free memory was 46.0MB in the beginning and 44.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 81.27ms. Allocated memory is still 62.9MB. Free memory was 44.2MB in the beginning and 42.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 564.95ms. Allocated memory is still 62.9MB. Free memory was 42.6MB in the beginning and 31.3MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4746.13ms. Allocated memory was 62.9MB in the beginning and 88.1MB in the end (delta: 25.2MB). Free memory was 30.7MB in the beginning and 50.5MB in the end (delta: -19.8MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Witness Printer took 62.69ms. Allocated memory is still 88.1MB. Free memory was 50.5MB in the beginning and 47.1MB in the end (delta: 3.4MB). 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_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,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: 82]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 313 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 54 IncrementalHoareTripleChecker+Unchecked, 208 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31 IncrementalHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 105 mSDtfsCounter, 31 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 84 GetRequests, 53 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, InterpolantAutomatonStates: 37, 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 170 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 76 ConstructedInterpolants, 25 QuantifiedInterpolants, 872 SizeOfPredicates, 36 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 19]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 14]: Loop Invariant [2021-11-23 17:07:05,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,511 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,513 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,513 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,515 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == \result) - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant [2021-11-23 17:07:05,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,516 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,517 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,518 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,519 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_3,QUANTIFIED] [2021-11-23 17:07:05,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,520 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] [2021-11-23 17:07:05,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___signbit_float_~w~1#1,QUANTIFIED] Derived loop invariant: (\exists ULTIMATE.start___signbit_float_~w~1#1 : bv32 :: (\exists v_arrayElimCell_3 : bv32 :: ~fp~LONGDOUBLE(v_arrayElimCell_3[31:31], v_arrayElimCell_3[30:23], v_arrayElimCell_3[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(v_arrayElimCell_3[31:31], v_arrayElimCell_3[30:23], v_arrayElimCell_3[22:0]) == ~fp~LONGDOUBLE(ULTIMATE.start___signbit_float_~w~1#1[31:31], ULTIMATE.start___signbit_float_~w~1#1[30:23], ULTIMATE.start___signbit_float_~w~1#1[22:0])) && ((\result == 0bv32 && ~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1) == 0bv32) || (!(~bvand32(2147483648bv32, ULTIMATE.start___signbit_float_~w~1#1) == 0bv32) && \result == 1bv32))) && aux-res == -0.0f && __signbit_float(res) == 1-aux - InvariantResult [Line: 60]: Loop Invariant [2021-11-23 17:07:05,521 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,522 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,523 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,524 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13,QUANTIFIED] [2021-11-23 17:07:05,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] [2021-11-23 17:07:05,525 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9,QUANTIFIED] Derived loop invariant: (\exists v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9 : bv32, v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13 : bv32 :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#gf_u~0#1.base_13][0bv32] == unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32]) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_round_float_~#sf_u~0#1.base_9][0bv32][22:0]) == x) && aux-res == -0.0f && __signbit_float(res) == 1-aux RESULT: Ultimate proved your program to be correct! [2021-11-23 17:07:05,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34bd48d7-bea0-4467-a2b0-f9d858aa3cd5/bin/utaipan-fb15Y9Yzbl/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