./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD --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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a ........................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD --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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:12,994 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:12,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:13,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:13,058 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:13,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:13,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:13,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:13,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:13,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:13,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:13,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:13,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:13,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:13,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:13,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:13,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:13,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:13,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:13,114 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:13,117 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:13,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:13,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:13,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:13,138 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:13,139 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:13,140 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:13,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:13,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:13,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:13,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:13,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:13,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:13,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:13,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:13,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:13,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:13,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:13,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:13,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:13,158 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:13,159 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-29 00:03:13,216 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:13,217 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:13,218 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:13,218 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:13,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:13,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:13,230 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:13,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:13,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:13,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:03:13,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:13,232 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:13,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:13,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:13,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:13,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:13,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:13,234 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:13,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:13,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:13,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:13,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:13,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:13,236 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:13,236 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:13,236 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:13,237 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:03:13,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:03:13,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:13,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:13,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:13,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:13,239 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_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2021-10-29 00:03:13,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:13,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:13,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:13,726 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:13,727 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:13,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-10-29 00:03:13,812 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/f2f84949b/9a6ac4d6c50b4609be39b9928d7bed82/FLAGa125cc877 [2021-10-29 00:03:14,442 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:14,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-10-29 00:03:14,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/f2f84949b/9a6ac4d6c50b4609be39b9928d7bed82/FLAGa125cc877 [2021-10-29 00:03:14,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/f2f84949b/9a6ac4d6c50b4609be39b9928d7bed82 [2021-10-29 00:03:14,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:14,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:14,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:14,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:14,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:14,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:14" (1/1) ... [2021-10-29 00:03:14,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bd2ca1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:14, skipping insertion in model container [2021-10-29 00:03:14,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:14" (1/1) ... [2021-10-29 00:03:14,784 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:14,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:15,152 WARN L228 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_3704a854-c624-4fac-9445-035bd72a9b86/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-10-29 00:03:15,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:15,183 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:15,249 WARN L228 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_3704a854-c624-4fac-9445-035bd72a9b86/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-10-29 00:03:15,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:15,275 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:15,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15 WrapperNode [2021-10-29 00:03:15,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:15,277 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:15,278 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:15,278 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:15,287 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:15,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:15,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:15,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:15,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,361 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,378 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,378 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:15,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:15,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:15,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:15,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (1/1) ... [2021-10-29 00:03:15,436 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:15,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:15,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:15,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:03:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 00:03:15,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 00:03:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 00:03:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:15,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:15,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 00:03:15,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 00:03:15,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:15,952 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 00:03:15,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:15 BoogieIcfgContainer [2021-10-29 00:03:15,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:15,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:15,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:15,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:15,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:14" (1/3) ... [2021-10-29 00:03:15,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:15, skipping insertion in model container [2021-10-29 00:03:15,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:15" (2/3) ... [2021-10-29 00:03:15,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d20f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:15, skipping insertion in model container [2021-10-29 00:03:15,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:15" (3/3) ... [2021-10-29 00:03:15,985 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2021-10-29 00:03:15,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:15,992 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:16,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:16,074 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 [2021-10-29 00:03:16,074 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:16,093 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:16,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 00:03:16,099 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:16,100 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:16,100 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:16,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:16,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-10-29 00:03:16,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:16,130 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001578832] [2021-10-29 00:03:16,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:16,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:16,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:16,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:16,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001578832] [2021-10-29 00:03:16,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001578832] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:16,339 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:16,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 00:03:16,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113134272] [2021-10-29 00:03:16,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 00:03:16,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:16,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 00:03:16,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 00:03:16,367 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-29 00:03:16,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:16,389 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-29 00:03:16,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 00:03:16,391 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-10-29 00:03:16,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:16,402 INFO L225 Difference]: With dead ends: 72 [2021-10-29 00:03:16,403 INFO L226 Difference]: Without dead ends: 34 [2021-10-29 00:03:16,408 INFO L786 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 [2021-10-29 00:03:16,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-29 00:03:16,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-29 00:03:16,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 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) [2021-10-29 00:03:16,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-29 00:03:16,458 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-10-29 00:03:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:16,459 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-29 00:03:16,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-29 00:03:16,459 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-29 00:03:16,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 00:03:16,460 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:16,460 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:16,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:03:16,461 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:16,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:16,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-10-29 00:03:16,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:16,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113915202] [2021-10-29 00:03:16,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:16,462 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:16,508 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:16,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:16,571 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:16,575 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 00:03:16,577 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:03:16,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 00:03:16,583 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 00:03:16,586 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:03:16,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:03:16 BoogieIcfgContainer [2021-10-29 00:03:16,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:03:16,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:03:16,629 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:03:16,629 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:03:16,630 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:15" (3/4) ... [2021-10-29 00:03:16,636 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 00:03:16,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:03:16,639 INFO L168 Benchmark]: Toolchain (without parser) took 1873.24 ms. Allocated memory is still 104.9 MB. Free memory was 62.3 MB in the beginning and 35.5 MB in the end (delta: 26.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:16,640 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 78.6 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:16,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 510.86 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 77.1 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:16,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.36 ms. Allocated memory is still 104.9 MB. Free memory was 77.1 MB in the beginning and 75.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:16,646 INFO L168 Benchmark]: Boogie Preprocessor took 70.21 ms. Allocated memory is still 104.9 MB. Free memory was 75.3 MB in the beginning and 73.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:16,646 INFO L168 Benchmark]: RCFGBuilder took 533.27 ms. Allocated memory is still 104.9 MB. Free memory was 73.6 MB in the beginning and 60.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:16,647 INFO L168 Benchmark]: TraceAbstraction took 662.28 ms. Allocated memory is still 104.9 MB. Free memory was 60.0 MB in the beginning and 35.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:16,648 INFO L168 Benchmark]: Witness Printer took 7.54 ms. Allocated memory is still 104.9 MB. Free memory was 35.8 MB in the beginning and 35.5 MB in the end (delta: 325.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:16,651 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 104.9 MB. Free memory was 78.6 MB in the beginning and 78.6 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 510.86 ms. Allocated memory is still 104.9 MB. Free memory was 62.0 MB in the beginning and 77.1 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 72.36 ms. Allocated memory is still 104.9 MB. Free memory was 77.1 MB in the beginning and 75.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.21 ms. Allocated memory is still 104.9 MB. Free memory was 75.3 MB in the beginning and 73.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 533.27 ms. Allocated memory is still 104.9 MB. Free memory was 73.6 MB in the beginning and 60.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 662.28 ms. Allocated memory is still 104.9 MB. Free memory was 60.0 MB in the beginning and 35.8 MB in the end (delta: 24.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 7.54 ms. Allocated memory is still 104.9 MB. Free memory was 35.8 MB in the beginning and 35.5 MB in the end (delta: 325.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * 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: 108]: 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 107, overapproximation of bitwiseAnd at line 26, overapproximation of someUnaryFLOAToperation at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = -0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L108] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=37occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-10-29 00:03:16,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:19,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:19,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:19,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:19,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:19,526 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:19,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:19,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:19,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:19,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:19,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:19,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:19,548 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:19,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:19,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:19,557 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:19,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:19,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:19,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:19,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:19,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:19,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:19,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:19,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:19,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:19,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:19,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:19,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:19,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:19,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:19,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:19,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:19,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:19,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:19,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:19,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:19,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:19,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:19,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:19,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:19,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:19,588 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-29 00:03:19,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:19,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:19,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:19,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:19,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:19,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:19,626 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:19,626 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:19,627 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:19,627 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:19,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:19,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:19,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:19,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:19,628 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 00:03:19,628 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 00:03:19,628 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:19,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:19,629 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:19,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:19,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:19,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:19,630 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:19,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:19,630 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:19,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:19,631 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:19,631 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-29 00:03:19,631 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 00:03:19,631 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:19,632 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:19,632 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:19,632 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:19,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 00:03:19,632 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_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2021-10-29 00:03:20,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:20,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:20,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:20,129 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:20,130 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:20,131 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-10-29 00:03:20,222 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/5114854fe/29e5c21187cb4804b5956fcb9151bbd0/FLAG417cd965e [2021-10-29 00:03:20,916 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:20,916 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-10-29 00:03:20,929 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/5114854fe/29e5c21187cb4804b5956fcb9151bbd0/FLAG417cd965e [2021-10-29 00:03:21,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/data/5114854fe/29e5c21187cb4804b5956fcb9151bbd0 [2021-10-29 00:03:21,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:21,268 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:21,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:21,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:21,277 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:21,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c2944c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21, skipping insertion in model container [2021-10-29 00:03:21,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:21,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:21,475 WARN L228 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_3704a854-c624-4fac-9445-035bd72a9b86/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-10-29 00:03:21,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:21,493 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:21,578 WARN L228 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_3704a854-c624-4fac-9445-035bd72a9b86/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-10-29 00:03:21,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:21,611 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:21,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21 WrapperNode [2021-10-29 00:03:21,612 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:21,613 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:21,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:21,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:21,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,636 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:21,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:21,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:21,665 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:21,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,692 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:21,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:21,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:21,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:21,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (1/1) ... [2021-10-29 00:03:21,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:21,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:21,761 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:21,780 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:21,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 00:03:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-29 00:03:21,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 00:03:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:21,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-29 00:03:21,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 00:03:21,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 00:03:22,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:22,953 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-29 00:03:22,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:22 BoogieIcfgContainer [2021-10-29 00:03:22,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:22,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:22,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:22,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:22,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:21" (1/3) ... [2021-10-29 00:03:22,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343f0aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:22, skipping insertion in model container [2021-10-29 00:03:22,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:21" (2/3) ... [2021-10-29 00:03:22,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343f0aa9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:22, skipping insertion in model container [2021-10-29 00:03:22,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:22" (3/3) ... [2021-10-29 00:03:22,966 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2021-10-29 00:03:22,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:22,972 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:23,029 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:23,037 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 [2021-10-29 00:03:23,037 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:23,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 00:03:23,063 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:23,064 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:23,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:23,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:23,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-10-29 00:03:23,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:03:23,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1000909908] [2021-10-29 00:03:23,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:23,093 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:03:23,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:03:23,105 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:03:23,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 00:03:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:23,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 00:03:23,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:23,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:03:23,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:23,508 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:03:23,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1000909908] [2021-10-29 00:03:23,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1000909908] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:23,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:23,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 00:03:23,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521049799] [2021-10-29 00:03:23,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 00:03:23,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:03:23,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 00:03:23,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 00:03:23,561 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-29 00:03:23,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:23,609 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-29 00:03:23,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 00:03:23,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-10-29 00:03:23,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:23,632 INFO L225 Difference]: With dead ends: 72 [2021-10-29 00:03:23,633 INFO L226 Difference]: Without dead ends: 34 [2021-10-29 00:03:23,637 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 00:03:23,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-29 00:03:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-29 00:03:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 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) [2021-10-29 00:03:23,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-29 00:03:23,716 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-10-29 00:03:23,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:23,717 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-29 00:03:23,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-29 00:03:23,717 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-29 00:03:23,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 00:03:23,718 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:23,718 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:23,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:23,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:03:23,934 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:23,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-10-29 00:03:23,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:03:23,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [134448029] [2021-10-29 00:03:23,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:23,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:03:23,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:03:23,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:03:23,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 00:03:24,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:24,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:03:24,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:24,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:24,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:03:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:24,633 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:03:24,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [134448029] [2021-10-29 00:03:24,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [134448029] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:24,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:24,634 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:03:24,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204169169] [2021-10-29 00:03:24,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:03:24,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:03:24,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:03:24,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:03:24,638 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:24,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:24,747 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-10-29 00:03:24,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:03:24,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-29 00:03:24,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:24,751 INFO L225 Difference]: With dead ends: 43 [2021-10-29 00:03:24,751 INFO L226 Difference]: Without dead ends: 16 [2021-10-29 00:03:24,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-29 00:03:24,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-29 00:03:24,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-29 00:03:24,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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) [2021-10-29 00:03:24,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-10-29 00:03:24,759 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2021-10-29 00:03:24,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:24,760 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-10-29 00:03:24,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-10-29 00:03:24,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 00:03:24,762 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:24,764 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:24,779 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:24,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:03:24,972 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2021-10-29 00:03:24,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:03:24,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767828076] [2021-10-29 00:03:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:24,973 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:03:24,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:03:24,984 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:03:24,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 00:03:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:25,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 00:03:25,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:25,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:25,292 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:03:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:25,402 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:03:25,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1767828076] [2021-10-29 00:03:25,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1767828076] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:25,403 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:25,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-29 00:03:25,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547729213] [2021-10-29 00:03:25,404 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:03:25,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:03:25,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:03:25,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:03:25,407 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-29 00:03:25,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:25,504 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-10-29 00:03:25,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:03:25,505 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 [2021-10-29 00:03:25,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:25,506 INFO L225 Difference]: With dead ends: 19 [2021-10-29 00:03:25,506 INFO L226 Difference]: Without dead ends: 16 [2021-10-29 00:03:25,507 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-29 00:03:25,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-29 00:03:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-29 00:03:25,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:25,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-10-29 00:03:25,512 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-10-29 00:03:25,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:25,512 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-10-29 00:03:25,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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) [2021-10-29 00:03:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-10-29 00:03:25,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 00:03:25,514 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:25,514 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:25,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:25,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:03:25,715 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:25,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:25,716 INFO L85 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2021-10-29 00:03:25,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:03:25,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139671468] [2021-10-29 00:03:25,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:25,717 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:03:25,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:03:25,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:03:25,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 00:03:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:25,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-29 00:03:25,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:26,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:26,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:03:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:26,803 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:03:26,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139671468] [2021-10-29 00:03:26,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139671468] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:26,803 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:26,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-10-29 00:03:26,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529613854] [2021-10-29 00:03:26,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-29 00:03:26,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:03:26,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-29 00:03:26,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-10-29 00:03:26,807 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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) [2021-10-29 00:03:27,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:27,146 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-10-29 00:03:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-29 00:03:27,149 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 00:03:27,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:27,150 INFO L225 Difference]: With dead ends: 16 [2021-10-29 00:03:27,150 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 00:03:27,151 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-10-29 00:03:27,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 00:03:27,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 00:03:27,152 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) [2021-10-29 00:03:27,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 00:03:27,152 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-29 00:03:27,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:27,153 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:03:27,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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) [2021-10-29 00:03:27,153 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:03:27,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 00:03:27,156 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:03:27,175 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 00:03:27,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:03:27,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 00:03:27,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:03:27,577 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-10-29 00:03:27,578 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-10-29 00:03:27,578 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-10-29 00:03:27,578 INFO L857 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-10-29 00:03:27,578 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 00:03:27,578 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 00:03:27,579 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-10-29 00:03:27,579 INFO L857 garLoopResultBuilder]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2021-10-29 00:03:27,579 INFO L853 garLoopResultBuilder]: At program point L86-2(lines 86 90) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-10-29 00:03:27,579 INFO L857 garLoopResultBuilder]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2021-10-29 00:03:27,580 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-10-29 00:03:27,580 INFO L857 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-10-29 00:03:27,580 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-10-29 00:03:27,580 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-29 00:03:27,580 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-10-29 00:03:27,581 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) [2021-10-29 00:03:27,581 INFO L857 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-10-29 00:03:27,581 INFO L860 garLoopResultBuilder]: At program point L112(lines 95 113) the Hoare annotation is: true [2021-10-29 00:03:27,581 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-10-29 00:03:27,582 INFO L853 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-10-29 00:03:27,582 INFO L857 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-10-29 00:03:27,582 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-10-29 00:03:27,582 INFO L853 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)))))) [2021-10-29 00:03:27,583 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-29 00:03:27,583 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-10-29 00:03:27,583 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 00:03:27,583 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2021-10-29 00:03:27,583 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-29 00:03:27,584 INFO L857 garLoopResultBuilder]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2021-10-29 00:03:27,584 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-29 00:03:27,584 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 00:03:27,584 INFO L857 garLoopResultBuilder]: For program point L108(line 108) no Hoare annotation was computed. [2021-10-29 00:03:27,584 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-10-29 00:03:27,585 INFO L853 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-10-29 00:03:27,585 INFO L857 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-10-29 00:03:27,585 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-10-29 00:03:27,585 INFO L853 garLoopResultBuilder]: At program point L92(lines 83 93) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___signbit_float_#res| (_ bv1 32)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-10-29 00:03:27,593 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-29 00:03:27,595 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:03:27,603 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,604 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,605 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,616 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,617 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,626 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,627 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,632 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,633 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,641 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,642 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,642 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,642 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:03:27 BoogieIcfgContainer [2021-10-29 00:03:27,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:03:27,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:03:27,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:03:27,646 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:03:27,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:22" (3/4) ... [2021-10-29 00:03:27,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 00:03:27,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-29 00:03:27,667 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 00:03:27,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:03:27,668 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:03:27,709 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0)) [2021-10-29 00:03:27,711 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x [2021-10-29 00:03:27,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x [2021-10-29 00:03:27,758 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:03:27,759 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:03:27,767 INFO L168 Benchmark]: Toolchain (without parser) took 6491.60 ms. Allocated memory was 60.8 MB in the beginning and 92.3 MB in the end (delta: 31.5 MB). Free memory was 38.7 MB in the beginning and 68.4 MB in the end (delta: -29.7 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:27,767 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.0 MB in the beginning and 41.9 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:27,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.79 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 42.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:27,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 40.8 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:27,770 INFO L168 Benchmark]: Boogie Preprocessor took 50.88 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 39.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:27,770 INFO L168 Benchmark]: RCFGBuilder took 1239.29 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 57.2 MB in the end (delta: -18.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:27,771 INFO L168 Benchmark]: TraceAbstraction took 4686.58 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 56.9 MB in the beginning and 72.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:27,771 INFO L168 Benchmark]: Witness Printer took 112.91 ms. Allocated memory is still 92.3 MB. Free memory was 72.0 MB in the beginning and 68.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:27,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 60.8 MB. Free memory was 42.0 MB in the beginning and 41.9 MB in the end (delta: 44.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.79 ms. Allocated memory is still 60.8 MB. Free memory was 38.6 MB in the beginning and 42.7 MB in the end (delta: -4.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 40.8 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.88 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 39.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1239.29 ms. Allocated memory was 60.8 MB in the beginning and 75.5 MB in the end (delta: 14.7 MB). Free memory was 39.2 MB in the beginning and 57.2 MB in the end (delta: -18.0 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4686.58 ms. Allocated memory was 75.5 MB in the beginning and 92.3 MB in the end (delta: 16.8 MB). Free memory was 56.9 MB in the beginning and 72.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 28.4 MB. Max. memory is 16.1 GB. * Witness Printer took 112.91 ms. Allocated memory is still 92.3 MB. Free memory was 72.0 MB in the beginning and 68.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 108]: 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 101 SDslu, 61 SDs, 0 SdLazy, 56 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 147 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 373 SizeOfPredicates, 22 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 83]: Loop Invariant [2021-10-29 00:03:27,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,791 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,793 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,793 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,794 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,794 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 86]: Loop Invariant [2021-10-29 00:03:27,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,800 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant [2021-10-29 00:03:27,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-10-29 00:03:27,808 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0)) RESULT: Ultimate proved your program to be correct! [2021-10-29 00:03:27,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3704a854-c624-4fac-9445-035bd72a9b86/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...