./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:04:01,318 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:04:01,321 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:04:01,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:04:01,360 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:04:01,362 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:04:01,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:04:01,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:04:01,368 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:04:01,369 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:04:01,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:04:01,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:04:01,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:04:01,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:04:01,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:04:01,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:04:01,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:04:01,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:04:01,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:04:01,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:04:01,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:04:01,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:04:01,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:04:01,393 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:04:01,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:04:01,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:04:01,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:04:01,400 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:04:01,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:04:01,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:04:01,402 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:04:01,403 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:04:01,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:04:01,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:04:01,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:04:01,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:04:01,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:04:01,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:04:01,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:04:01,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:04:01,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:04:01,413 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:04:01,454 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:04:01,455 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:04:01,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:04:01,456 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:04:01,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:04:01,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:04:01,464 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:04:01,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:04:01,465 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:04:01,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:04:01,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:04:01,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:04:01,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:04:01,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:04:01,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:04:01,467 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:04:01,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:04:01,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:04:01,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:04:01,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:04:01,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:04:01,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:04:01,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:04:01,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:04:01,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:04:01,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:04:01,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:04:01,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:04:01,469 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:04:01,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:04:01,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:04:01,472 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:04:01,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 [2021-11-22 16:04:01,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:04:01,768 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:04:01,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:04:01,773 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:04:01,774 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:04:01,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-11-22 16:04:01,835 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/fc2faa3b7/3263b0e05c954381ae92c1da4976dda0/FLAGa5fcfd987 [2021-11-22 16:04:02,328 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:04:02,329 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-11-22 16:04:02,343 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/fc2faa3b7/3263b0e05c954381ae92c1da4976dda0/FLAGa5fcfd987 [2021-11-22 16:04:02,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/fc2faa3b7/3263b0e05c954381ae92c1da4976dda0 [2021-11-22 16:04:02,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:04:02,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:04:02,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:04:02,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:04:02,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:04:02,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:02" (1/1) ... [2021-11-22 16:04:02,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a4db1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:02, skipping insertion in model container [2021-11-22 16:04:02,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:02" (1/1) ... [2021-11-22 16:04:02,717 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:04:02,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:04:02,975 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_32871769-b38f-4a8d-967b-b988fd6fecb4/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2021-11-22 16:04:02,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:04:03,002 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:04:03,099 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_32871769-b38f-4a8d-967b-b988fd6fecb4/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2021-11-22 16:04:03,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:04:03,121 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:04:03,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03 WrapperNode [2021-11-22 16:04:03,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:04:03,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:04:03,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:04:03,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:04:03,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,207 INFO L137 Inliner]: procedures = 20, calls = 84, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 512 [2021-11-22 16:04:03,214 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:04:03,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:04:03,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:04:03,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:04:03,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,289 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,294 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:04:03,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:04:03,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:04:03,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:04:03,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (1/1) ... [2021-11-22 16:04:03,304 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:04:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:03,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:03,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:04:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:04:03,387 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:04:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:04:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-22 16:04:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 16:04:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-22 16:04:03,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:04:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:04:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 16:04:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-22 16:04:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:04:03,493 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:04:03,495 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:04:04,041 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:04:04,050 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:04:04,050 INFO L301 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-22 16:04:04,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:04 BoogieIcfgContainer [2021-11-22 16:04:04,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:04:04,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:04:04,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:04:04,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:04:04,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:04:02" (1/3) ... [2021-11-22 16:04:04,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653f7720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:04, skipping insertion in model container [2021-11-22 16:04:04,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:03" (2/3) ... [2021-11-22 16:04:04,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@653f7720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:04, skipping insertion in model container [2021-11-22 16:04:04,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:04" (3/3) ... [2021-11-22 16:04:04,067 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a.c [2021-11-22 16:04:04,074 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:04:04,074 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:04:04,123 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:04:04,129 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=PETRI_NET, 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 [2021-11-22 16:04:04,130 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:04:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 113 states have internal predecessors, (190), 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) [2021-11-22 16:04:04,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 16:04:04,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:04,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:04,155 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:04,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:04,161 INFO L85 PathProgramCache]: Analyzing trace with hash 530404973, now seen corresponding path program 1 times [2021-11-22 16:04:04,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:04,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119146960] [2021-11-22 16:04:04,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:04,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:04,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:04,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:04:04,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119146960] [2021-11-22 16:04:04,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119146960] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:04,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:04,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:04:04,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655325069] [2021-11-22 16:04:04,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:04,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:04:04,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:04:04,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:04:04,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:04:04,459 INFO L87 Difference]: Start difference. First operand has 114 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 113 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:04,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:04,490 INFO L93 Difference]: Finished difference Result 226 states and 378 transitions. [2021-11-22 16:04:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:04:04,492 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 16:04:04,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:04,503 INFO L225 Difference]: With dead ends: 226 [2021-11-22 16:04:04,504 INFO L226 Difference]: Without dead ends: 111 [2021-11-22 16:04:04,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:04:04,512 INFO L933 BasicCegarLoop]: 163 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, 163 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 [2021-11-22 16:04:04,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:04:04,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-22 16:04:04,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-22 16:04:04,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4545454545454546) internal successors, (160), 110 states have internal predecessors, (160), 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) [2021-11-22 16:04:04,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2021-11-22 16:04:04,557 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 11 [2021-11-22 16:04:04,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:04,558 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2021-11-22 16:04:04,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2021-11-22 16:04:04,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 16:04:04,560 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:04,560 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:04,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:04:04,561 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:04,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:04,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1378836132, now seen corresponding path program 1 times [2021-11-22 16:04:04,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:04:04,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999486795] [2021-11-22 16:04:04,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:04,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:04:04,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:04,627 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:04:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:04:04,698 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:04:04,698 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 16:04:04,700 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:04:04,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:04:04,706 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 16:04:04,710 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:04:04,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:04:04 BoogieIcfgContainer [2021-11-22 16:04:04,765 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:04:04,766 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:04:04,766 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:04:04,766 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:04:04,767 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:04" (3/4) ... [2021-11-22 16:04:04,770 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 16:04:04,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:04:04,772 INFO L158 Benchmark]: Toolchain (without parser) took 2085.94ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 59.6MB in the beginning and 76.6MB in the end (delta: -17.0MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-22 16:04:04,773 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 49.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:04,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.29ms. Allocated memory is still 102.8MB. Free memory was 59.4MB in the beginning and 72.8MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 16:04:04,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.74ms. Allocated memory is still 102.8MB. Free memory was 72.8MB in the beginning and 69.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:04:04,778 INFO L158 Benchmark]: Boogie Preprocessor took 79.74ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 66.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:04:04,780 INFO L158 Benchmark]: RCFGBuilder took 757.92ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 42.0MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-22 16:04:04,781 INFO L158 Benchmark]: TraceAbstraction took 710.39ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 77.2MB in the end (delta: -35.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:04,787 INFO L158 Benchmark]: Witness Printer took 5.18ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 76.6MB in the end (delta: 574.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:04:04,790 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 75.8MB in the end (delta: 49.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.29ms. Allocated memory is still 102.8MB. Free memory was 59.4MB in the beginning and 72.8MB in the end (delta: -13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.74ms. Allocated memory is still 102.8MB. Free memory was 72.8MB in the beginning and 69.3MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.74ms. Allocated memory is still 102.8MB. Free memory was 69.3MB in the beginning and 66.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 757.92ms. Allocated memory is still 102.8MB. Free memory was 66.3MB in the beginning and 42.0MB in the end (delta: 24.3MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 710.39ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 41.7MB in the beginning and 77.2MB in the end (delta: -35.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.18ms. Allocated memory is still 123.7MB. Free memory was 77.2MB in the beginning and 76.6MB in the end (delta: 574.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 241]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 240, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 236, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, zero_atan2=0] [L235] float x = 0.0f; [L236] float y = -0.0f; [L237] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=0, \old(y)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L237] RET, EXPR __ieee754_atan2f(y, x) [L237] float res = __ieee754_atan2f(y, x); [L240] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, res == -0.0f && __signbit_float(res) == 1=0, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] [L240] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L241] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000002, tiny_atan2=1/1000000000000000000000000000000, x=0, y=1000000000000000000000000000001, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 163 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 163 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 16:04:04,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0 --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:04:07,392 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:04:07,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:04:07,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:04:07,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:04:07,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:04:07,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:04:07,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:04:07,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:04:07,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:04:07,465 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:04:07,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:04:07,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:04:07,468 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:04:07,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:04:07,472 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:04:07,473 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:04:07,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:04:07,477 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:04:07,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:04:07,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:04:07,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:04:07,486 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:04:07,487 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:04:07,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:04:07,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:04:07,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:04:07,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:04:07,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:04:07,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:04:07,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:04:07,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:04:07,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:04:07,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:04:07,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:04:07,499 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:04:07,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:04:07,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:04:07,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:04:07,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:04:07,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:04:07,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 16:04:07,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:04:07,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:04:07,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:04:07,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:04:07,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:04:07,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:04:07,553 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:04:07,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:04:07,554 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:04:07,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:04:07,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:04:07,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:04:07,555 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:04:07,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:04:07,556 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:04:07,556 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 16:04:07,556 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 16:04:07,557 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:04:07,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:04:07,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:04:07,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:04:07,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:04:07,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:04:07,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:04:07,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:04:07,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:04:07,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:04:07,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:04:07,559 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 16:04:07,559 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 16:04:07,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:04:07,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:04:07,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:04:07,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:04:07,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 16:04:07,561 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_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 628ef94ffcb82d7d79291bff968888e106b4637120d2adb19df164372ebfdd78 [2021-11-22 16:04:07,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:04:08,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:04:08,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:04:08,010 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:04:08,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:04:08,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-11-22 16:04:08,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/e500fa34b/782d7a825c02448192e2cf4b4bf90aaa/FLAGc80d85e25 [2021-11-22 16:04:08,744 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:04:08,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c [2021-11-22 16:04:08,754 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/e500fa34b/782d7a825c02448192e2cf4b4bf90aaa/FLAGc80d85e25 [2021-11-22 16:04:09,072 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/data/e500fa34b/782d7a825c02448192e2cf4b4bf90aaa [2021-11-22 16:04:09,074 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:04:09,076 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:04:09,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:04:09,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:04:09,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:04:09,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecb47ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09, skipping insertion in model container [2021-11-22 16:04:09,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:04:09,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:04:09,412 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_32871769-b38f-4a8d-967b-b988fd6fecb4/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2021-11-22 16:04:09,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:04:09,429 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:04:09,507 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_32871769-b38f-4a8d-967b-b988fd6fecb4/sv-benchmarks/c/float-newlib/float_req_bl_0681a.c[5435,5448] [2021-11-22 16:04:09,520 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:04:09,551 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:04:09,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09 WrapperNode [2021-11-22 16:04:09,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:04:09,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:04:09,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:04:09,557 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:04:09,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,630 INFO L137 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 512 [2021-11-22 16:04:09,631 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:04:09,632 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:04:09,632 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:04:09,632 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:04:09,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,656 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:04:09,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:04:09,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:04:09,735 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:04:09,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (1/1) ... [2021-11-22 16:04:09,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:04:09,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:04:09,769 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:04:09,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:04:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:04:09,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-22 16:04:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 16:04:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 16:04:09,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-22 16:04:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-22 16:04:09,821 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:04:09,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:04:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-22 16:04:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-22 16:04:09,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 16:04:09,961 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:04:09,963 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:04:31,793 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:04:31,800 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:04:31,800 INFO L301 CfgBuilder]: Removed 26 assume(true) statements. [2021-11-22 16:04:31,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:31 BoogieIcfgContainer [2021-11-22 16:04:31,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:04:31,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:04:31,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:04:31,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:04:31,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:04:09" (1/3) ... [2021-11-22 16:04:31,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a47a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:31, skipping insertion in model container [2021-11-22 16:04:31,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:04:09" (2/3) ... [2021-11-22 16:04:31,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a47a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:04:31, skipping insertion in model container [2021-11-22 16:04:31,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:31" (3/3) ... [2021-11-22 16:04:31,814 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0681a.c [2021-11-22 16:04:31,819 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:04:31,820 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 16:04:31,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:04:31,883 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=PETRI_NET, 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 [2021-11-22 16:04:31,883 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 16:04:31,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 113 states have internal predecessors, (190), 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) [2021-11-22 16:04:31,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 16:04:31,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:31,907 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:31,908 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:31,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:31,913 INFO L85 PathProgramCache]: Analyzing trace with hash 530404973, now seen corresponding path program 1 times [2021-11-22 16:04:31,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:31,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [11053722] [2021-11-22 16:04:31,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:31,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:31,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:31,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:31,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 16:04:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:32,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 16:04:32,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:33,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:33,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:33,140 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:33,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [11053722] [2021-11-22 16:04:33,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [11053722] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:33,141 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:33,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 16:04:33,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557588137] [2021-11-22 16:04:33,143 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:33,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:04:33,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:33,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:04:33,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:04:33,179 INFO L87 Difference]: Start difference. First operand has 114 states, 112 states have (on average 1.6964285714285714) internal successors, (190), 113 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:33,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:33,210 INFO L93 Difference]: Finished difference Result 226 states and 378 transitions. [2021-11-22 16:04:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:04:33,212 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-22 16:04:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:33,223 INFO L225 Difference]: With dead ends: 226 [2021-11-22 16:04:33,224 INFO L226 Difference]: Without dead ends: 111 [2021-11-22 16:04:33,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:04:33,231 INFO L933 BasicCegarLoop]: 163 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, 163 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 [2021-11-22 16:04:33,232 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:04:33,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-22 16:04:33,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-22 16:04:33,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4545454545454546) internal successors, (160), 110 states have internal predecessors, (160), 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) [2021-11-22 16:04:33,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2021-11-22 16:04:33,278 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 11 [2021-11-22 16:04:33,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:33,283 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2021-11-22 16:04:33,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:33,283 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2021-11-22 16:04:33,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 16:04:33,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:33,287 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:33,318 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:33,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:33,503 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:33,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:33,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1378836132, now seen corresponding path program 1 times [2021-11-22 16:04:33,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:33,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1729117297] [2021-11-22 16:04:33,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:33,505 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:33,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:33,507 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:33,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 16:04:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:34,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 16:04:34,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:34,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-22 16:04:35,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-11-22 16:04:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:35,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:37,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:37,303 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:37,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1729117297] [2021-11-22 16:04:37,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1729117297] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:37,304 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:37,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-22 16:04:37,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696057318] [2021-11-22 16:04:37,305 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:37,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-22 16:04:37,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:37,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-22 16:04:37,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-22 16:04:37,308 INFO L87 Difference]: Start difference. First operand 111 states and 160 transitions. Second operand has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2021-11-22 16:04:40,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-22 16:04:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:40,092 INFO L93 Difference]: Finished difference Result 120 states and 169 transitions. [2021-11-22 16:04:40,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-22 16:04:40,127 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) Word has length 13 [2021-11-22 16:04:40,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:40,129 INFO L225 Difference]: With dead ends: 120 [2021-11-22 16:04:40,129 INFO L226 Difference]: Without dead ends: 111 [2021-11-22 16:04:40,129 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-11-22 16:04:40,131 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 2 mSDsluCounter, 1000 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-22 16:04:40,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1154 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 1 Unknown, 53 Unchecked, 2.6s Time] [2021-11-22 16:04:40,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-22 16:04:40,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-22 16:04:40,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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) [2021-11-22 16:04:40,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-22 16:04:40,145 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 13 [2021-11-22 16:04:40,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:40,145 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-22 16:04:40,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 12 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) [2021-11-22 16:04:40,146 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-22 16:04:40,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 16:04:40,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:40,147 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:40,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-22 16:04:40,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:40,349 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:40,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:40,350 INFO L85 PathProgramCache]: Analyzing trace with hash 631770583, now seen corresponding path program 1 times [2021-11-22 16:04:40,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:40,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [589071598] [2021-11-22 16:04:40,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:40,356 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:40,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:40,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:40,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-22 16:04:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:41,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-22 16:04:41,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:41,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:42,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:42,712 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:42,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [589071598] [2021-11-22 16:04:42,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [589071598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:42,712 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:42,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2021-11-22 16:04:42,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221060660] [2021-11-22 16:04:42,713 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:42,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-22 16:04:42,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:42,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-22 16:04:42,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-22 16:04:42,714 INFO L87 Difference]: Start difference. First operand 111 states and 159 transitions. Second operand has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:43,359 INFO L93 Difference]: Finished difference Result 204 states and 294 transitions. [2021-11-22 16:04:43,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:04:43,360 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-22 16:04:43,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:43,361 INFO L225 Difference]: With dead ends: 204 [2021-11-22 16:04:43,362 INFO L226 Difference]: Without dead ends: 129 [2021-11-22 16:04:43,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:04:43,364 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 193 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:04:43,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 740 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 15 Unchecked, 0.5s Time] [2021-11-22 16:04:43,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-22 16:04:43,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 111. [2021-11-22 16:04:43,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4363636363636363) internal successors, (158), 110 states have internal predecessors, (158), 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) [2021-11-22 16:04:43,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 158 transitions. [2021-11-22 16:04:43,377 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 158 transitions. Word has length 18 [2021-11-22 16:04:43,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:43,377 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 158 transitions. [2021-11-22 16:04:43,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:43,378 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 158 transitions. [2021-11-22 16:04:43,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 16:04:43,379 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:43,379 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:43,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:43,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:43,590 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:43,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:43,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1888189351, now seen corresponding path program 1 times [2021-11-22 16:04:43,591 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:43,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118501783] [2021-11-22 16:04:43,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:43,592 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:43,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:43,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:43,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-22 16:04:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:44,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-22 16:04:44,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:45,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:45,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:45,381 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:45,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118501783] [2021-11-22 16:04:45,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118501783] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:45,381 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:45,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-22 16:04:45,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375993368] [2021-11-22 16:04:45,382 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:45,382 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-22 16:04:45,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:45,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-22 16:04:45,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-22 16:04:45,383 INFO L87 Difference]: Start difference. First operand 111 states and 158 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:48,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:48,061 INFO L93 Difference]: Finished difference Result 123 states and 169 transitions. [2021-11-22 16:04:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-22 16:04:48,062 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-22 16:04:48,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:48,064 INFO L225 Difference]: With dead ends: 123 [2021-11-22 16:04:48,064 INFO L226 Difference]: Without dead ends: 120 [2021-11-22 16:04:48,065 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:04:48,066 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 325 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-22 16:04:48,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 436 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-22 16:04:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-22 16:04:48,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 113. [2021-11-22 16:04:48,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.4285714285714286) internal successors, (160), 112 states have internal predecessors, (160), 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) [2021-11-22 16:04:48,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 160 transitions. [2021-11-22 16:04:48,077 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 160 transitions. Word has length 18 [2021-11-22 16:04:48,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:48,078 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 160 transitions. [2021-11-22 16:04:48,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 160 transitions. [2021-11-22 16:04:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-22 16:04:48,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:48,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:48,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-22 16:04:48,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:48,303 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:48,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:48,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1957254937, now seen corresponding path program 1 times [2021-11-22 16:04:48,304 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:48,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1107008245] [2021-11-22 16:04:48,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:48,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:48,305 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:48,310 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:48,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-22 16:04:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:49,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-22 16:04:49,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:49,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:49,641 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:50,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:50,184 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:50,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1107008245] [2021-11-22 16:04:50,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1107008245] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:50,184 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:50,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-22 16:04:50,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691180980] [2021-11-22 16:04:50,184 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:50,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-22 16:04:50,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:50,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-22 16:04:50,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-22 16:04:50,186 INFO L87 Difference]: Start difference. First operand 113 states and 160 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:50,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:50,809 INFO L93 Difference]: Finished difference Result 176 states and 249 transitions. [2021-11-22 16:04:50,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-22 16:04:50,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-22 16:04:50,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:50,840 INFO L225 Difference]: With dead ends: 176 [2021-11-22 16:04:50,840 INFO L226 Difference]: Without dead ends: 106 [2021-11-22 16:04:50,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-22 16:04:50,843 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 541 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 541 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-22 16:04:50,844 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [541 Valid, 145 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 2 Unchecked, 0.4s Time] [2021-11-22 16:04:50,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-22 16:04:50,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-11-22 16:04:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.3714285714285714) internal successors, (144), 105 states have internal predecessors, (144), 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) [2021-11-22 16:04:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2021-11-22 16:04:50,854 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 18 [2021-11-22 16:04:50,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:50,854 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2021-11-22 16:04:50,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:50,854 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2021-11-22 16:04:50,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-22 16:04:50,855 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:50,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:50,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:51,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:51,079 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:51,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:51,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1392821934, now seen corresponding path program 1 times [2021-11-22 16:04:51,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:51,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124815589] [2021-11-22 16:04:51,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:51,080 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:51,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:51,081 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:51,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-22 16:04:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:52,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-22 16:04:52,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:52,114 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2021-11-22 16:04:52,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2021-11-22 16:04:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:53,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:54,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:54,145 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:54,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1124815589] [2021-11-22 16:04:54,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1124815589] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:54,146 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:54,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 11 [2021-11-22 16:04:54,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839986200] [2021-11-22 16:04:54,147 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:54,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-22 16:04:54,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:54,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-22 16:04:54,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-11-22 16:04:54,148 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:54,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:54,791 INFO L93 Difference]: Finished difference Result 113 states and 150 transitions. [2021-11-22 16:04:54,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 16:04:54,792 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-22 16:04:54,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:54,793 INFO L225 Difference]: With dead ends: 113 [2021-11-22 16:04:54,793 INFO L226 Difference]: Without dead ends: 23 [2021-11-22 16:04:54,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:04:54,795 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 47 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 13 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:04:54,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 60 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 13 Unchecked, 0.2s Time] [2021-11-22 16:04:54,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-22 16:04:54,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-22 16:04:54,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.0) internal successors, (22), 22 states have internal predecessors, (22), 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) [2021-11-22 16:04:54,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 22 transitions. [2021-11-22 16:04:54,800 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 22 transitions. Word has length 19 [2021-11-22 16:04:54,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:54,801 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 22 transitions. [2021-11-22 16:04:54,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:04:54,801 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 22 transitions. [2021-11-22 16:04:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-22 16:04:54,802 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:04:54,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:04:54,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-22 16:04:55,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:55,007 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:04:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:04:55,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1581076334, now seen corresponding path program 1 times [2021-11-22 16:04:55,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:04:55,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874166197] [2021-11-22 16:04:55,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:04:55,008 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:04:55,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:04:55,009 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:04:55,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-22 16:04:55,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:04:55,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-22 16:04:55,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:04:56,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:56,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:04:58,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:04:58,124 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:04:58,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [874166197] [2021-11-22 16:04:58,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [874166197] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:04:58,124 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:04:58,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-22 16:04:58,125 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925071115] [2021-11-22 16:04:58,125 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:04:58,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-22 16:04:58,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:04:58,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-22 16:04:58,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-22 16:04:58,126 INFO L87 Difference]: Start difference. First operand 23 states and 22 transitions. Second operand has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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) [2021-11-22 16:04:58,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:04:58,935 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2021-11-22 16:04:58,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-22 16:04:58,936 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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 22 [2021-11-22 16:04:58,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:04:58,937 INFO L225 Difference]: With dead ends: 23 [2021-11-22 16:04:58,937 INFO L226 Difference]: Without dead ends: 0 [2021-11-22 16:04:58,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-11-22 16:04:58,938 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 23 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-22 16:04:58,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 131 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 8 Unchecked, 0.2s Time] [2021-11-22 16:04:58,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-22 16:04:58,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-22 16:04:58,940 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) [2021-11-22 16:04:58,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-22 16:04:58,940 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-11-22 16:04:58,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:04:58,941 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-22 16:04:58,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.857142857142857) internal successors, (40), 14 states have internal predecessors, (40), 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) [2021-11-22 16:04:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-22 16:04:58,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 16:04:58,944 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 16:04:58,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-22 16:04:59,144 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:04:59,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L71-2(lines 71 96) no Hoare annotation was computed. [2021-11-22 16:05:00,087 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L72-3(lines 72 75) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L72-5(lines 72 75) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-11-22 16:05:00,088 INFO L858 garLoopResultBuilder]: For program point L73-1(lines 73 74) no Hoare annotation was computed. [2021-11-22 16:05:00,089 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-22 16:05:00,089 INFO L858 garLoopResultBuilder]: For program point L240(line 240) no Hoare annotation was computed. [2021-11-22 16:05:00,089 INFO L858 garLoopResultBuilder]: For program point L240-2(lines 240 243) no Hoare annotation was computed. [2021-11-22 16:05:00,089 INFO L858 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2021-11-22 16:05:00,090 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-22 16:05:00,090 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-11-22 16:05:00,090 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-22 16:05:00,090 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-11-22 16:05:00,090 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 109 114) no Hoare annotation was computed. [2021-11-22 16:05:00,090 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-11-22 16:05:00,091 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-11-22 16:05:00,091 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-22 16:05:00,091 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-22 16:05:00,091 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-11-22 16:05:00,091 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-22 16:05:00,092 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-11-22 16:05:00,092 INFO L858 garLoopResultBuilder]: For program point L79-1(lines 79 95) no Hoare annotation was computed. [2021-11-22 16:05:00,092 INFO L861 garLoopResultBuilder]: At program point L245(lines 229 246) the Hoare annotation is: true [2021-11-22 16:05:00,092 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-22 16:05:00,093 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-22 16:05:00,093 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-11-22 16:05:00,093 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-11-22 16:05:00,093 INFO L854 garLoopResultBuilder]: At program point L113-3(lines 53 115) the Hoare annotation is: false [2021-11-22 16:05:00,093 INFO L858 garLoopResultBuilder]: For program point L80-3(lines 80 86) no Hoare annotation was computed. [2021-11-22 16:05:00,094 INFO L858 garLoopResultBuilder]: For program point L113-4(line 113) no Hoare annotation was computed. [2021-11-22 16:05:00,094 INFO L858 garLoopResultBuilder]: For program point L113-6(line 113) no Hoare annotation was computed. [2021-11-22 16:05:00,094 INFO L854 garLoopResultBuilder]: At program point L113-7(lines 53 115) the Hoare annotation is: false [2021-11-22 16:05:00,094 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-11-22 16:05:00,094 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-22 16:05:00,094 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: false [2021-11-22 16:05:00,094 INFO L858 garLoopResultBuilder]: For program point L16-5(lines 16 20) no Hoare annotation was computed. [2021-11-22 16:05:00,095 INFO L854 garLoopResultBuilder]: At program point L16-6(lines 16 20) the Hoare annotation is: false [2021-11-22 16:05:00,095 INFO L858 garLoopResultBuilder]: For program point L16-9(lines 16 20) no Hoare annotation was computed. [2021-11-22 16:05:00,095 INFO L854 garLoopResultBuilder]: At program point L16-10(lines 16 20) the Hoare annotation is: false [2021-11-22 16:05:00,095 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-22 16:05:00,095 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-22 16:05:00,095 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-11-22 16:05:00,095 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-22 16:05:00,095 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|))) (= .cse0 |ULTIMATE.start___ieee754_atan2f_#res#1|) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (_ +zero 8 24)) (= (_ bv1 32) |ULTIMATE.start___ieee754_atan2f_~m~0#1|) (= |ULTIMATE.start___ieee754_atan2f_~iy~0#1| (_ bv0 32)) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-4(lines 14 27) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-6(lines 21 25) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-7(lines 14 27) no Hoare annotation was computed. [2021-11-22 16:05:00,096 INFO L858 garLoopResultBuilder]: For program point L21-8(lines 21 25) no Hoare annotation was computed. [2021-11-22 16:05:00,097 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-11-22 16:05:00,097 INFO L858 garLoopResultBuilder]: For program point L220-1(lines 220 224) no Hoare annotation was computed. [2021-11-22 16:05:00,097 INFO L854 garLoopResultBuilder]: At program point L220-2(lines 220 224) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|))) (= .cse0 |ULTIMATE.start___ieee754_atan2f_#res#1|) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| |ULTIMATE.start_main_#t~short42#1| (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (_ +zero 8 24)) (= (_ bv1 32) |ULTIMATE.start___ieee754_atan2f_~m~0#1|) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start___ieee754_atan2f_~iy~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-22 16:05:00,097 INFO L858 garLoopResultBuilder]: For program point L220-3(lines 220 224) no Hoare annotation was computed. [2021-11-22 16:05:00,097 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L88-3(lines 88 94) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L88-5(lines 71 96) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-11-22 16:05:00,098 INFO L854 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: false [2021-11-22 16:05:00,098 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point L57-5(lines 57 61) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L854 garLoopResultBuilder]: At program point L57-6(lines 57 61) the Hoare annotation is: false [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point L57-7(lines 57 61) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-11-22 16:05:00,099 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start___ieee754_atan2f_~x#1|) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|)) [2021-11-22 16:05:00,099 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-11-22 16:05:00,100 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-11-22 16:05:00,100 INFO L854 garLoopResultBuilder]: At program point L26(lines 14 27) the Hoare annotation is: false [2021-11-22 16:05:00,100 INFO L854 garLoopResultBuilder]: At program point L26-1(lines 14 27) the Hoare annotation is: false [2021-11-22 16:05:00,100 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 14 27) the Hoare annotation is: false [2021-11-22 16:05:00,100 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-11-22 16:05:00,100 INFO L854 garLoopResultBuilder]: At program point L226(lines 217 227) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|))) (= .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|))) (= .cse0 |ULTIMATE.start___ieee754_atan2f_#res#1|) |ULTIMATE.start___ieee754_atan2f_#t~switch29#1| |ULTIMATE.start_main_#t~short42#1| (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res#1| (_ bv1 32)) (= (_ bv1 32) |ULTIMATE.start___ieee754_atan2f_~m~0#1|) (= .cse0 |ULTIMATE.start___signbit_float_~x#1|) (= |ULTIMATE.start___ieee754_atan2f_~iy~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~res~0#1| .cse0) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-22 16:05:00,100 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 70) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-22 16:05:00,101 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-11-22 16:05:00,102 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (= (bvand (_ bv2147483647 32) .cse0) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|)))) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14|) (_ bv0 32)))) (and (= .cse1 |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (_ +zero 8 24))))) (= (fp.neg (_ +zero 8 24)) |ULTIMATE.start___ieee754_atan2f_~y#1|)) [2021-11-22 16:05:00,102 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-11-22 16:05:00,102 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-11-22 16:05:00,102 INFO L858 garLoopResultBuilder]: For program point L64-1(lines 64 65) no Hoare annotation was computed. [2021-11-22 16:05:00,102 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-22 16:05:00,102 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-22 16:05:00,102 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2021-11-22 16:05:00,103 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-11-22 16:05:00,103 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-11-22 16:05:00,103 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-11-22 16:05:00,103 INFO L858 garLoopResultBuilder]: For program point L66-1(lines 66 69) no Hoare annotation was computed. [2021-11-22 16:05:00,103 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-22 16:05:00,107 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:05:00,109 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:05:00,120 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,121 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,121 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,121 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,130 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,131 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:05:00 BoogieIcfgContainer [2021-11-22 16:05:00,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:05:00,138 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:05:00,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:05:00,139 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:05:00,139 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:04:31" (3/4) ... [2021-11-22 16:05:00,142 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 16:05:00,161 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-22 16:05:00,162 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-22 16:05:00,163 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-22 16:05:00,164 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 16:05:00,190 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14 : bv32 :: unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32] == hx && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32][22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2021-11-22 16:05:00,190 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE()) && 1bv32 == m) && iy == 0bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2021-11-22 16:05:00,192 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE()) && 1bv32 == m) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && iy == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2021-11-22 16:05:00,193 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 1bv32) && 1bv32 == m) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && iy == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y [2021-11-22 16:05:00,230 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:05:00,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:05:00,231 INFO L158 Benchmark]: Toolchain (without parser) took 51155.71ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 44.7MB in the beginning and 40.7MB in the end (delta: 4.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,231 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:05:00,232 INFO L158 Benchmark]: CACSL2BoogieTranslator took 478.46ms. Allocated memory is still 65.0MB. Free memory was 44.6MB in the beginning and 42.2MB in the end (delta: 2.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,232 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.65ms. Allocated memory is still 65.0MB. Free memory was 42.2MB in the beginning and 38.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,233 INFO L158 Benchmark]: Boogie Preprocessor took 101.76ms. Allocated memory is still 65.0MB. Free memory was 38.7MB in the beginning and 35.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,233 INFO L158 Benchmark]: RCFGBuilder took 22069.09ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 35.0MB in the beginning and 43.5MB in the end (delta: -8.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,233 INFO L158 Benchmark]: TraceAbstraction took 28331.30ms. Allocated memory is still 81.8MB. Free memory was 43.1MB in the beginning and 49.1MB in the end (delta: -6.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,234 INFO L158 Benchmark]: Witness Printer took 92.25ms. Allocated memory is still 81.8MB. Free memory was 49.1MB in the beginning and 40.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 16:05:00,236 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 65.0MB. Free memory is still 45.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 478.46ms. Allocated memory is still 65.0MB. Free memory was 44.6MB in the beginning and 42.2MB in the end (delta: 2.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.65ms. Allocated memory is still 65.0MB. Free memory was 42.2MB in the beginning and 38.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 101.76ms. Allocated memory is still 65.0MB. Free memory was 38.7MB in the beginning and 35.3MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 22069.09ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 35.0MB in the beginning and 43.5MB in the end (delta: -8.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * TraceAbstraction took 28331.30ms. Allocated memory is still 81.8MB. Free memory was 43.1MB in the beginning and 49.1MB in the end (delta: -6.0MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. * Witness Printer took 92.25ms. Allocated memory is still 81.8MB. Free memory was 49.1MB in the beginning and 40.7MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. 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___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,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: 241]: 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, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1131 SdHoareTripleChecker+Valid, 6.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1131 mSDsluCounter, 2829 SdHoareTripleChecker+Invalid, 6.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 91 IncrementalHoareTripleChecker+Unchecked, 2048 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 168 IncrementalHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 781 mSDtfsCounter, 168 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 240 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=0, InterpolantAutomatonStates: 42, 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, 7 MinimizatonAttempts, 25 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 17 PreInvPairs, 23 NumberOfFragments, 223 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.1s SatisfiabilityAnalysisTime, 10.7s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 224 ConstructedInterpolants, 51 QuantifiedInterpolants, 1795 SizeOfPredicates, 52 NumberOfNonLiveVariables, 781 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant [2021-11-22 16:05:00,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,248 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,248 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,248 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,249 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-22 16:05:00,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] [2021-11-22 16:05:00,250 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14 : bv32 :: unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32] == hx && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_14][0bv32][22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: ((((((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 1bv32) && 1bv32 == m) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && iy == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 124]: Loop Invariant Derived loop invariant: ~Pluszero~LONGDOUBLE() == x && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 120]: Loop Invariant Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE()) && 1bv32 == m) && iy == 0bv32) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: ((((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == \result) && aux-switch (m) { case 0: case 1: return y; case 2: return pi + tiny_atan2; case 3: return -pi - tiny_atan2; }-aux) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~Pluszero~LONGDOUBLE()) && 1bv32 == m) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && iy == 0bv32) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == y RESULT: Ultimate proved your program to be correct! [2021-11-22 16:05:00,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_32871769-b38f-4a8d-967b-b988fd6fecb4/bin/uautomizer-w2VwFs6gM0/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