./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa --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 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:39:31,345 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:39:31,347 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:39:31,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:39:31,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:39:31,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:39:31,371 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:39:31,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:39:31,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:39:31,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:39:31,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:39:31,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:39:31,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:39:31,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:39:31,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:39:31,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:39:31,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:39:31,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:39:31,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:39:31,385 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:39:31,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:39:31,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:39:31,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:39:31,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:39:31,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:39:31,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:39:31,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:39:31,394 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:39:31,394 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:39:31,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:39:31,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:39:31,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:39:31,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:39:31,397 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:39:31,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:39:31,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:39:31,398 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:39:31,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:39:31,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:39:31,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:39:31,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:39:31,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-07 01:39:31,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:39:31,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:39:31,418 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:39:31,418 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:39:31,419 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:39:31,419 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:39:31,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:39:31,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:39:31,419 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:39:31,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:39:31,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:39:31,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:31,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:39:31,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:39:31,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-07 01:39:31,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-07 01:39:31,422 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:39:31,422 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:39:31,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:39:31,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:39:31,422 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_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c [2021-12-07 01:39:31,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:39:31,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:39:31,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:39:31,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:39:31,611 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:39:31,612 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2021-12-07 01:39:31,656 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/d49535885/afcd004afd354142959e5046c08fa153/FLAGd8b582107 [2021-12-07 01:39:32,026 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:39:32,026 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2021-12-07 01:39:32,032 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/d49535885/afcd004afd354142959e5046c08fa153/FLAGd8b582107 [2021-12-07 01:39:32,041 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/d49535885/afcd004afd354142959e5046c08fa153 [2021-12-07 01:39:32,043 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:39:32,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:39:32,045 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:32,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:39:32,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:39:32,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@435983a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32, skipping insertion in model container [2021-12-07 01:39:32,048 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:39:32,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:39:32,232 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_a2a208e5-7601-41e1-9602-c7af57aa6683/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2021-12-07 01:39:32,234 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:32,241 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:39:32,270 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_a2a208e5-7601-41e1-9602-c7af57aa6683/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2021-12-07 01:39:32,270 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:32,281 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:39:32,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32 WrapperNode [2021-12-07 01:39:32,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:32,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:32,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:39:32,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:39:32,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,317 INFO L137 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 242 [2021-12-07 01:39:32,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:32,318 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:39:32,318 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:39:32,318 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:39:32,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,339 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,341 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:39:32,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:39:32,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:39:32,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:39:32,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (1/1) ... [2021-12-07 01:39:32,352 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:32,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:39:32,371 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:39:32,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:39:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:39:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-07 01:39:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:39:32,407 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-07 01:39:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-07 01:39:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-07 01:39:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:39:32,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:39:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-07 01:39:32,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:39:32,476 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:39:32,478 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:39:32,677 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:39:32,684 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:39:32,684 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-07 01:39:32,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:32 BoogieIcfgContainer [2021-12-07 01:39:32,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:39:32,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:39:32,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:39:32,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:39:32,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:39:32" (1/3) ... [2021-12-07 01:39:32,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183a10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:32, skipping insertion in model container [2021-12-07 01:39:32,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:32" (2/3) ... [2021-12-07 01:39:32,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183a10b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:32, skipping insertion in model container [2021-12-07 01:39:32,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:32" (3/3) ... [2021-12-07 01:39:32,696 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281.c [2021-12-07 01:39:32,701 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:39:32,701 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:39:32,743 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:39:32,748 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 [2021-12-07 01:39:32,748 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:39:32,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 56 states have (on average 1.6607142857142858) internal successors, (93), 57 states have internal predecessors, (93), 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) [2021-12-07 01:39:32,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-07 01:39:32,764 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:32,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:32,765 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:32,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:32,769 INFO L85 PathProgramCache]: Analyzing trace with hash 863812756, now seen corresponding path program 1 times [2021-12-07 01:39:32,775 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:32,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270699440] [2021-12-07 01:39:32,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:32,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:32,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:32,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-07 01:39:32,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270699440] [2021-12-07 01:39:32,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270699440] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:32,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:32,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:39:32,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807925392] [2021-12-07 01:39:32,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:32,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:39:32,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-07 01:39:32,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:39:32,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:39:32,905 INFO L87 Difference]: Start difference. First operand has 58 states, 56 states have (on average 1.6607142857142858) internal successors, (93), 57 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:32,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:39:32,920 INFO L93 Difference]: Finished difference Result 113 states and 182 transitions. [2021-12-07 01:39:32,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:39:32,922 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-07 01:39:32,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:39:32,928 INFO L225 Difference]: With dead ends: 113 [2021-12-07 01:39:32,928 INFO L226 Difference]: Without dead ends: 54 [2021-12-07 01:39:32,930 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 [2021-12-07 01:39:32,933 INFO L933 BasicCegarLoop]: 76 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, 76 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 [2021-12-07 01:39:32,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:39:32,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-07 01:39:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-07 01:39:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 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) [2021-12-07 01:39:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2021-12-07 01:39:32,967 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 10 [2021-12-07 01:39:32,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:39:32,967 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2021-12-07 01:39:32,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:32,967 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2021-12-07 01:39:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-07 01:39:32,968 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:32,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:32,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-07 01:39:32,969 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:32,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1283186732, now seen corresponding path program 1 times [2021-12-07 01:39:32,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-07 01:39:32,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790084087] [2021-12-07 01:39:32,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:32,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-07 01:39:33,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:39:33,016 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-07 01:39:33,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-07 01:39:33,067 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-07 01:39:33,067 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-07 01:39:33,068 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 01:39:33,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-07 01:39:33,073 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-07 01:39:33,075 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:39:33,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:39:33 BoogieIcfgContainer [2021-12-07 01:39:33,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:39:33,104 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:39:33,104 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:39:33,104 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:39:33,104 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:32" (3/4) ... [2021-12-07 01:39:33,106 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-07 01:39:33,107 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:39:33,107 INFO L158 Benchmark]: Toolchain (without parser) took 1063.41ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 56.6MB in the beginning and 78.3MB in the end (delta: -21.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:39:33,108 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:39:33,108 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.36ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 65.6MB in the end (delta: -9.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-12-07 01:39:33,109 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.14ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 63.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:39:33,109 INFO L158 Benchmark]: Boogie Preprocessor took 26.23ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 61.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:39:33,110 INFO L158 Benchmark]: RCFGBuilder took 341.19ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 65.2MB in the end (delta: -4.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2021-12-07 01:39:33,111 INFO L158 Benchmark]: TraceAbstraction took 415.47ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 64.9MB in the beginning and 78.8MB in the end (delta: -14.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-07 01:39:33,111 INFO L158 Benchmark]: Witness Printer took 2.81ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 78.3MB in the end (delta: 495.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:39:33,115 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 92.3MB. Free memory was 73.0MB in the beginning and 72.9MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.36ms. Allocated memory is still 92.3MB. Free memory was 56.3MB in the beginning and 65.6MB in the end (delta: -9.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.14ms. Allocated memory is still 92.3MB. Free memory was 65.6MB in the beginning and 63.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.23ms. Allocated memory is still 92.3MB. Free memory was 63.3MB in the beginning and 61.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.19ms. Allocated memory is still 92.3MB. Free memory was 61.2MB in the beginning and 65.2MB in the end (delta: -4.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 415.47ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 64.9MB in the beginning and 78.8MB in the end (delta: -14.0MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Witness Printer took 2.81ms. Allocated memory is still 111.1MB. Free memory was 78.8MB in the beginning and 78.3MB in the end (delta: 495.8kB). 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: 194]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 104, overapproximation of bitwiseAnd at line 118, overapproximation of someUnaryFLOAToperation at line 102, overapproximation of someBinaryArithmeticFLOAToperation at line 121. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L100-L108] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L186] float x = __VERIFIER_nondet_float(); [L188] COND TRUE x < -1.0f || x > 1.0f [L190] CALL, EXPR __ieee754_asinf(x) [L111] float t, w, p, q, c, r, s; [L112] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L114] ieee_float_shape_type gf_u; [L115] gf_u.value = (x) [L116] EXPR gf_u.word [L116] (hx) = gf_u.word [L118] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L119] COND TRUE ix == 0x3f800000 [L121] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, hx=-1, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L190] RET, EXPR __ieee754_asinf(x) [L190] float res = __ieee754_asinf(x); [L193] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\old(x)=1000000000000000000000000000001, \result=0, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000001] [L193] RET, EXPR isnan_float(res) [L193] COND TRUE !isnan_float(res) [L194] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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, 76 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, 76 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=58occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-07 01:39:33,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/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_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa --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 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-07 01:39:34,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-07 01:39:34,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-07 01:39:34,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-07 01:39:34,776 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-07 01:39:34,777 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-07 01:39:34,779 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-07 01:39:34,781 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-07 01:39:34,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-07 01:39:34,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-07 01:39:34,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-07 01:39:34,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-07 01:39:34,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-07 01:39:34,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-07 01:39:34,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-07 01:39:34,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-07 01:39:34,793 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-07 01:39:34,794 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-07 01:39:34,796 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-07 01:39:34,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-07 01:39:34,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-07 01:39:34,802 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-07 01:39:34,803 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-07 01:39:34,804 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-07 01:39:34,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-07 01:39:34,809 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-07 01:39:34,809 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-07 01:39:34,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-07 01:39:34,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-07 01:39:34,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-07 01:39:34,813 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-07 01:39:34,813 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-07 01:39:34,814 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-07 01:39:34,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-07 01:39:34,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-07 01:39:34,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-07 01:39:34,824 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-07 01:39:34,824 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-07 01:39:34,825 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-07 01:39:34,826 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-07 01:39:34,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-07 01:39:34,827 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-07 01:39:34,851 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-07 01:39:34,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-07 01:39:34,852 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-07 01:39:34,852 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-07 01:39:34,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-07 01:39:34,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-07 01:39:34,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-07 01:39:34,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-07 01:39:34,853 INFO L138 SettingsManager]: * Use SBE=true [2021-12-07 01:39:34,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-07 01:39:34,854 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-07 01:39:34,855 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-07 01:39:34,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-07 01:39:34,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-07 01:39:34,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-07 01:39:34,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-07 01:39:34,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-07 01:39:34,855 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-07 01:39:34,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-07 01:39:34,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:34,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-07 01:39:34,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-07 01:39:34,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-07 01:39:34,856 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-07 01:39:34,856 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-07 01:39:34,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-07 01:39:34,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-07 01:39:34,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-07 01:39:34,857 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-07 01:39:34,857 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-07 01:39:34,857 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_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 232f7a655f6f2994683ec37dc98df7be72a1a46c6fd6dbf6a1ff9fd35a64400c [2021-12-07 01:39:35,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-07 01:39:35,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-07 01:39:35,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-07 01:39:35,110 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-07 01:39:35,111 INFO L275 PluginConnector]: CDTParser initialized [2021-12-07 01:39:35,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2021-12-07 01:39:35,153 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/72dfe9107/d6174b8420a24a448af9ba049e4f032a/FLAG6438636d9 [2021-12-07 01:39:35,539 INFO L306 CDTParser]: Found 1 translation units. [2021-12-07 01:39:35,539 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/sv-benchmarks/c/float-newlib/float_req_bl_0281.c [2021-12-07 01:39:35,546 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/72dfe9107/d6174b8420a24a448af9ba049e4f032a/FLAG6438636d9 [2021-12-07 01:39:35,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/data/72dfe9107/d6174b8420a24a448af9ba049e4f032a [2021-12-07 01:39:35,557 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-07 01:39:35,558 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-07 01:39:35,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:35,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-07 01:39:35,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-07 01:39:35,563 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,563 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46b27797 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35, skipping insertion in model container [2021-12-07 01:39:35,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-07 01:39:35,590 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-07 01:39:35,730 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_a2a208e5-7601-41e1-9602-c7af57aa6683/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2021-12-07 01:39:35,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:35,749 INFO L203 MainTranslator]: Completed pre-run [2021-12-07 01:39:35,796 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_a2a208e5-7601-41e1-9602-c7af57aa6683/sv-benchmarks/c/float-newlib/float_req_bl_0281.c[4632,4645] [2021-12-07 01:39:35,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-07 01:39:35,813 INFO L208 MainTranslator]: Completed translation [2021-12-07 01:39:35,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35 WrapperNode [2021-12-07 01:39:35,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-07 01:39:35,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:35,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-07 01:39:35,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-07 01:39:35,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,835 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,859 INFO L137 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 242 [2021-12-07 01:39:35,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-07 01:39:35,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-07 01:39:35,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-07 01:39:35,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-07 01:39:35,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,880 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,891 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-07 01:39:35,892 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-07 01:39:35,892 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-07 01:39:35,892 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-07 01:39:35,893 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (1/1) ... [2021-12-07 01:39:35,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-07 01:39:35,907 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 [2021-12-07 01:39:35,916 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-07 01:39:35,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-07 01:39:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-07 01:39:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-07 01:39:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-07 01:39:35,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-07 01:39:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-07 01:39:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-07 01:39:35,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-07 01:39:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-07 01:39:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-07 01:39:35,955 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-07 01:39:36,026 INFO L236 CfgBuilder]: Building ICFG [2021-12-07 01:39:36,027 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-07 01:39:47,555 INFO L277 CfgBuilder]: Performing block encoding [2021-12-07 01:39:47,561 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-07 01:39:47,561 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-12-07 01:39:47,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:47 BoogieIcfgContainer [2021-12-07 01:39:47,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-07 01:39:47,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-07 01:39:47,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-07 01:39:47,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-07 01:39:47,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:39:35" (1/3) ... [2021-12-07 01:39:47,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c81c171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:47, skipping insertion in model container [2021-12-07 01:39:47,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:39:35" (2/3) ... [2021-12-07 01:39:47,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c81c171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:39:47, skipping insertion in model container [2021-12-07 01:39:47,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:47" (3/3) ... [2021-12-07 01:39:47,570 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0281.c [2021-12-07 01:39:47,574 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-07 01:39:47,574 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-07 01:39:47,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-07 01:39:47,613 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 [2021-12-07 01:39:47,613 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-07 01:39:47,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 56 states have (on average 1.6607142857142858) internal successors, (93), 57 states have internal predecessors, (93), 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) [2021-12-07 01:39:47,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-07 01:39:47,627 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:47,627 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:47,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:47,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:47,632 INFO L85 PathProgramCache]: Analyzing trace with hash 863812756, now seen corresponding path program 1 times [2021-12-07 01:39:47,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:39:47,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1079756485] [2021-12-07 01:39:47,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:47,641 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:39:47,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:39:47,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:39:47,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-07 01:39:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:48,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-07 01:39:48,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:39:48,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:48,199 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:39:48,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:39:48,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1079756485] [2021-12-07 01:39:48,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1079756485] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:48,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:48,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-07 01:39:48,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859591090] [2021-12-07 01:39:48,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:48,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-07 01:39:48,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:39:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-07 01:39:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:39:48,230 INFO L87 Difference]: Start difference. First operand has 58 states, 56 states have (on average 1.6607142857142858) internal successors, (93), 57 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:48,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:39:48,245 INFO L93 Difference]: Finished difference Result 113 states and 182 transitions. [2021-12-07 01:39:48,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-07 01:39:48,246 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-07 01:39:48,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:39:48,252 INFO L225 Difference]: With dead ends: 113 [2021-12-07 01:39:48,252 INFO L226 Difference]: Without dead ends: 54 [2021-12-07 01:39:48,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-07 01:39:48,257 INFO L933 BasicCegarLoop]: 76 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, 76 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 [2021-12-07 01:39:48,258 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-07 01:39:48,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-07 01:39:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-07 01:39:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.3396226415094339) internal successors, (71), 53 states have internal predecessors, (71), 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) [2021-12-07 01:39:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 71 transitions. [2021-12-07 01:39:48,281 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 71 transitions. Word has length 10 [2021-12-07 01:39:48,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:39:48,282 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 71 transitions. [2021-12-07 01:39:48,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 71 transitions. [2021-12-07 01:39:48,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-07 01:39:48,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:48,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:48,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-07 01:39:48,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:39:48,485 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:48,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:48,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1283186732, now seen corresponding path program 1 times [2021-12-07 01:39:48,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:39:48,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [325757462] [2021-12-07 01:39:48,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:48,491 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:39:48,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:39:48,492 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:39:48,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-07 01:39:48,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:48,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-07 01:39:48,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:39:50,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:50,162 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:39:50,162 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:39:50,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [325757462] [2021-12-07 01:39:50,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [325757462] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:50,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:50,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:39:50,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173193526] [2021-12-07 01:39:50,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:50,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:39:50,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:39:50,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:39:50,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:39:50,165 INFO L87 Difference]: Start difference. First operand 54 states and 71 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:50,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:39:50,174 INFO L93 Difference]: Finished difference Result 59 states and 75 transitions. [2021-12-07 01:39:50,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:39:50,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-07 01:39:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:39:50,175 INFO L225 Difference]: With dead ends: 59 [2021-12-07 01:39:50,176 INFO L226 Difference]: Without dead ends: 54 [2021-12-07 01:39:50,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:39:50,177 INFO L933 BasicCegarLoop]: 67 mSDtfsCounter, 0 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:39:50,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 249 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 20 Unchecked, 0.0s Time] [2021-12-07 01:39:50,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-12-07 01:39:50,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2021-12-07 01:39:50,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.320754716981132) internal successors, (70), 53 states have internal predecessors, (70), 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) [2021-12-07 01:39:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 70 transitions. [2021-12-07 01:39:50,183 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 70 transitions. Word has length 11 [2021-12-07 01:39:50,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:39:50,183 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 70 transitions. [2021-12-07 01:39:50,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:50,184 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 70 transitions. [2021-12-07 01:39:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-07 01:39:50,184 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:39:50,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:39:50,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-07 01:39:50,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:39:50,386 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:39:50,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:39:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1003963026, now seen corresponding path program 1 times [2021-12-07 01:39:50,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:39:50,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044801206] [2021-12-07 01:39:50,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:39:50,391 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:39:50,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:39:50,393 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:39:50,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-07 01:39:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:39:51,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-07 01:39:51,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:39:54,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:39:54,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:39:54,216 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:39:54,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044801206] [2021-12-07 01:39:54,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044801206] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:39:54,216 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:39:54,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:39:54,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17361802] [2021-12-07 01:39:54,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:39:54,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-07 01:39:54,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:39:54,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-07 01:39:54,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-07 01:39:54,218 INFO L87 Difference]: Start difference. First operand 54 states and 70 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:39:58,543 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:40:01,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:40:03,745 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:40:06,285 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-12-07 01:40:06,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:06,532 INFO L93 Difference]: Finished difference Result 60 states and 75 transitions. [2021-12-07 01:40:06,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-07 01:40:06,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-07 01:40:06,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:06,538 INFO L225 Difference]: With dead ends: 60 [2021-12-07 01:40:06,538 INFO L226 Difference]: Without dead ends: 55 [2021-12-07 01:40:06,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-07 01:40:06,539 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 14 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:06,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 285 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 4 Unknown, 7 Unchecked, 10.9s Time] [2021-12-07 01:40:06,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-12-07 01:40:06,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-12-07 01:40:06,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.3018867924528301) internal successors, (69), 53 states have internal predecessors, (69), 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) [2021-12-07 01:40:06,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 69 transitions. [2021-12-07 01:40:06,545 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 69 transitions. Word has length 12 [2021-12-07 01:40:06,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:06,546 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 69 transitions. [2021-12-07 01:40:06,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:06,546 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 69 transitions. [2021-12-07 01:40:06,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-07 01:40:06,546 INFO L506 BasicCegarLoop]: Found error trace [2021-12-07 01:40:06,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-07 01:40:06,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-12-07 01:40:06,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:06,749 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-07 01:40:06,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-07 01:40:06,750 INFO L85 PathProgramCache]: Analyzing trace with hash -1008306114, now seen corresponding path program 1 times [2021-12-07 01:40:06,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-07 01:40:06,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1215142367] [2021-12-07 01:40:06,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-07 01:40:06,753 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-07 01:40:06,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat [2021-12-07 01:40:06,755 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-07 01:40:06,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-07 01:40:07,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-07 01:40:08,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-07 01:40:08,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-07 01:40:08,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-07 01:40:08,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-07 01:40:08,711 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-07 01:40:08,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1215142367] [2021-12-07 01:40:08,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1215142367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-07 01:40:08,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-07 01:40:08,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-07 01:40:08,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752862826] [2021-12-07 01:40:08,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-07 01:40:08,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-07 01:40:08,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-07 01:40:08,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-07 01:40:08,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:40:08,713 INFO L87 Difference]: Start difference. First operand 54 states and 69 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:08,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-07 01:40:08,716 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2021-12-07 01:40:08,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-07 01:40:08,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-12-07 01:40:08,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-07 01:40:08,716 INFO L225 Difference]: With dead ends: 54 [2021-12-07 01:40:08,716 INFO L226 Difference]: Without dead ends: 0 [2021-12-07 01:40:08,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-07 01:40:08,718 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-07 01:40:08,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-12-07 01:40:08,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-07 01:40:08,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-07 01:40:08,719 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) [2021-12-07 01:40:08,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-07 01:40:08,719 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-12-07 01:40:08,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-07 01:40:08,719 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-07 01:40:08,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-07 01:40:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-07 01:40:08,720 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-07 01:40:08,722 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-07 01:40:08,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-07 01:40:08,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-07 01:40:08,929 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-07 01:40:10,255 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-12-07 01:40:10,255 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-07 01:40:10,255 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 139) no Hoare annotation was computed. [2021-12-07 01:40:10,255 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2021-12-07 01:40:10,255 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-12-07 01:40:10,256 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-12-07 01:40:10,256 INFO L854 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2021-12-07 01:40:10,256 INFO L858 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2021-12-07 01:40:10,256 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 197) no Hoare annotation was computed. [2021-12-07 01:40:10,256 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 139) no Hoare annotation was computed. [2021-12-07 01:40:10,256 INFO L858 garLoopResultBuilder]: For program point L188-2(lines 188 197) no Hoare annotation was computed. [2021-12-07 01:40:10,256 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L854 garLoopResultBuilder]: At program point L156-2(lines 156 160) the Hoare annotation is: false [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: false [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2021-12-07 01:40:10,257 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L854 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 139) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 139) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 138) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 96) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L92-1(lines 85 98) no Hoare annotation was computed. [2021-12-07 01:40:10,258 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 96) no Hoare annotation was computed. [2021-12-07 01:40:10,259 INFO L854 garLoopResultBuilder]: At program point L175(lines 110 176) the Hoare annotation is: (and (exists ((|ULTIMATE.start___ieee754_asinf_~x#1| (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_asinf_~x#1| |ULTIMATE.start___ieee754_asinf_~x#1|))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start___ieee754_asinf_#res#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-07 01:40:10,259 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-12-07 01:40:10,259 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 196) no Hoare annotation was computed. [2021-12-07 01:40:10,259 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-07 01:40:10,259 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-12-07 01:40:10,259 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-12-07 01:40:10,259 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-12-07 01:40:10,259 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 165) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L161-1(lines 153 171) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L161-2(lines 161 165) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L113-1(lines 113 117) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L854 garLoopResultBuilder]: At program point L113-2(lines 113 117) the Hoare annotation is: (and (or (exists ((currentRoundingMode RoundingMode)) (fp.gt |ULTIMATE.start___ieee754_asinf_~x#1| ((_ to_fp 8 24) currentRoundingMode 1.0))) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_asinf_~x#1| (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0))))) (= currentRoundingMode roundNearestTiesToEven)) [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L113-3(lines 113 117) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-12-07 01:40:10,260 INFO L854 garLoopResultBuilder]: At program point L97(lines 85 98) the Hoare annotation is: false [2021-12-07 01:40:10,261 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-12-07 01:40:10,261 INFO L854 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2021-12-07 01:40:10,261 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-07 01:40:10,261 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 194) no Hoare annotation was computed. [2021-12-07 01:40:10,261 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-12-07 01:40:10,261 INFO L854 garLoopResultBuilder]: At program point L83(lines 19 84) the Hoare annotation is: false [2021-12-07 01:40:10,261 INFO L861 garLoopResultBuilder]: At program point L199(lines 178 200) the Hoare annotation is: true [2021-12-07 01:40:10,261 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-12-07 01:40:10,262 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 171) no Hoare annotation was computed. [2021-12-07 01:40:10,262 INFO L858 garLoopResultBuilder]: For program point L150-2(lines 110 176) no Hoare annotation was computed. [2021-12-07 01:40:10,262 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2021-12-07 01:40:10,265 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-07 01:40:10,266 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-07 01:40:10,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,275 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,275 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,276 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,276 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,278 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,278 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,279 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,279 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,279 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,279 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,280 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,280 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,280 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,281 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,281 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:40:10 BoogieIcfgContainer [2021-12-07 01:40:10,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-07 01:40:10,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-07 01:40:10,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-07 01:40:10,282 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-07 01:40:10,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:39:47" (3/4) ... [2021-12-07 01:40:10,285 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-07 01:40:10,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-12-07 01:40:10,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-07 01:40:10,295 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-07 01:40:10,296 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-07 01:40:10,312 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.gt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) || (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-07 01:40:10,312 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_asinf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_asinf_~x#1, ULTIMATE.start___ieee754_asinf_~x#1), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_asinf_~x#1, ULTIMATE.start___ieee754_asinf_~x#1)) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-12-07 01:40:10,312 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2021-12-07 01:40:10,328 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-07 01:40:10,328 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-07 01:40:10,329 INFO L158 Benchmark]: Toolchain (without parser) took 34770.09ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 40.9MB in the beginning and 32.7MB in the end (delta: 8.2MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,329 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 41.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-07 01:40:10,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.62ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 41.1MB in the end (delta: -362.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.54ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 38.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,330 INFO L158 Benchmark]: Boogie Preprocessor took 31.85ms. Allocated memory is still 60.8MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,330 INFO L158 Benchmark]: RCFGBuilder took 11671.46ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 36.4MB in the beginning and 59.8MB in the end (delta: -23.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,330 INFO L158 Benchmark]: TraceAbstraction took 22716.56ms. Allocated memory is still 81.8MB. Free memory was 59.3MB in the beginning and 37.9MB in the end (delta: 21.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,330 INFO L158 Benchmark]: Witness Printer took 46.15ms. Allocated memory is still 81.8MB. Free memory was 37.9MB in the beginning and 32.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-07 01:40:10,332 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 41.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.62ms. Allocated memory is still 60.8MB. Free memory was 40.7MB in the beginning and 41.1MB in the end (delta: -362.0kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.54ms. Allocated memory is still 60.8MB. Free memory was 41.1MB in the beginning and 38.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.85ms. Allocated memory is still 60.8MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11671.46ms. Allocated memory was 60.8MB in the beginning and 81.8MB in the end (delta: 21.0MB). Free memory was 36.4MB in the beginning and 59.8MB in the end (delta: -23.4MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 22716.56ms. Allocated memory is still 81.8MB. Free memory was 59.3MB in the beginning and 37.9MB in the end (delta: 21.4MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Witness Printer took 46.15ms. Allocated memory is still 81.8MB. Free memory was 37.9MB in the beginning and 32.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 194]: 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, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 22.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 622 SdHoareTripleChecker+Invalid, 10.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 32 IncrementalHoareTripleChecker+Unchecked, 413 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 209 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=58occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 47 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 10 QuantifiedInterpolants, 295 SizeOfPredicates, 20 NumberOfNonLiveVariables, 232 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 178]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2021-12-07 01:40:10,338 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,338 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,338 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,338 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,338 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,338 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,342 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,342 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,342 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,343 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,343 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~x#1,QUANTIFIED] [2021-12-07 01:40:10,343 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists ULTIMATE.start___ieee754_asinf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_asinf_~x#1, ULTIMATE.start___ieee754_asinf_~x#1), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_asinf_~x#1, ULTIMATE.start___ieee754_asinf_~x#1)) == \result) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 113]: Loop Invariant [2021-12-07 01:40:10,343 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-07 01:40:10,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-12-07 01:40:10,344 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.gt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))) || (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0))))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-07 01:40:10,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2a208e5-7601-41e1-9602-c7af57aa6683/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE