./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.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_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg --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 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 .............................................................................................................................................................................................................................................................................................................................. 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg --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 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:46:53,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:46:53,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:46:53,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:46:53,401 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:46:53,408 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:46:53,410 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:46:53,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:46:53,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:46:53,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:46:53,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:46:53,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:46:53,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:46:53,436 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:46:53,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:46:53,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:46:53,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:46:53,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:46:53,460 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:46:53,468 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:46:53,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:46:53,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:46:53,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:46:53,483 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:46:53,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:46:53,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:46:53,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:46:53,499 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:46:53,500 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:46:53,502 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:46:53,503 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:46:53,504 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:46:53,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:46:53,509 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:46:53,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:46:53,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:46:53,513 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:46:53,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:46:53,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:46:53,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:46:53,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:46:53,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:46:53,580 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:46:53,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:46:53,581 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:46:53,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:46:53,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:46:53,584 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:46:53,584 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:46:53,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:46:53,585 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:46:53,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:46:53,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:46:53,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:46:53,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:46:53,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:46:53,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:46:53,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:46:53,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:46:53,589 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:46:53,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:46:53,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:46:53,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:46:53,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:46:53,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:46:53,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:46:53,592 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:46:53,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:46:53,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:46:53,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:46:53,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:46:53,594 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:46:53,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:46:53,594 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:46:53,595 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 [2021-10-28 09:46:53,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:46:54,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:46:54,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:46:54,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:46:54,025 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:46:54,026 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-28 09:46:54,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/38057b791/9786e8723f714ccbaaa7dfd4a1c8ad82/FLAGc658c1d5e [2021-10-28 09:46:54,783 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:46:54,784 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-28 09:46:54,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/38057b791/9786e8723f714ccbaaa7dfd4a1c8ad82/FLAGc658c1d5e [2021-10-28 09:46:55,117 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/38057b791/9786e8723f714ccbaaa7dfd4a1c8ad82 [2021-10-28 09:46:55,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:46:55,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:46:55,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:46:55,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:46:55,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:46:55,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,135 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff1393d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55, skipping insertion in model container [2021-10-28 09:46:55,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:46:55,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:46:55,469 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-28 09:46:55,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:46:55,487 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:46:55,542 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-28 09:46:55,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:46:55,569 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:46:55,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55 WrapperNode [2021-10-28 09:46:55,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:46:55,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:46:55,572 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:46:55,572 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:46:55,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,690 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:46:55,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:46:55,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:46:55,705 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:46:55,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:46:55,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:46:55,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:46:55,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:46:55,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (1/1) ... [2021-10-28 09:46:55,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:46:55,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:46:55,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:46:55,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:46:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:46:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:46:55,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 09:46:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:46:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 09:46:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:46:55,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:46:55,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 09:46:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-28 09:46:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:46:56,550 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:46:56,553 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-28 09:46:56,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:56 BoogieIcfgContainer [2021-10-28 09:46:56,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:46:56,559 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:46:56,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:46:56,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:46:56,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:46:55" (1/3) ... [2021-10-28 09:46:56,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cf88e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:46:56, skipping insertion in model container [2021-10-28 09:46:56,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:46:55" (2/3) ... [2021-10-28 09:46:56,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65cf88e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:46:56, skipping insertion in model container [2021-10-28 09:46:56,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:56" (3/3) ... [2021-10-28 09:46:56,569 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2021-10-28 09:46:56,576 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:46:56,576 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:46:56,639 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:46:56,648 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 [2021-10-28 09:46:56,648 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:46:56,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 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) [2021-10-28 09:46:56,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:46:56,675 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:46:56,676 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:56,676 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:46:56,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:56,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2021-10-28 09:46:56,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:56,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317242806] [2021-10-28 09:46:56,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:56,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:46:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:46:56,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:46:56,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317242806] [2021-10-28 09:46:56,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317242806] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:46:56,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:46:56,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 09:46:56,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853837712] [2021-10-28 09:46:56,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:46:56,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:46:56,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:46:56,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:46:56,969 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:56,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:46:56,991 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2021-10-28 09:46:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:46:56,993 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 09:46:56,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:46:57,005 INFO L225 Difference]: With dead ends: 64 [2021-10-28 09:46:57,006 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 09:46:57,009 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 [2021-10-28 09:46:57,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 09:46:57,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-28 09:46:57,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-28 09:46:57,069 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2021-10-28 09:46:57,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:46:57,071 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-28 09:46:57,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:46:57,072 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-28 09:46:57,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:46:57,073 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:46:57,073 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:46:57,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:46:57,074 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:46:57,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:46:57,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2021-10-28 09:46:57,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:46:57,091 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680702091] [2021-10-28 09:46:57,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:46:57,091 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:46:57,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:57,208 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:46:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:46:57,335 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:46:57,335 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 09:46:57,338 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:46:57,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:46:57,346 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 09:46:57,351 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:46:57,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:46:57 BoogieIcfgContainer [2021-10-28 09:46:57,395 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:46:57,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:46:57,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:46:57,397 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:46:57,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:46:56" (3/4) ... [2021-10-28 09:46:57,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 09:46:57,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:46:57,405 INFO L168 Benchmark]: Toolchain (without parser) took 2279.70 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 47.0 MB in the beginning and 73.0 MB in the end (delta: -26.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:57,406 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 63.2 MB in the beginning and 63.1 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:57,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 444.21 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 46.8 MB in the beginning and 81.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:57,408 INFO L168 Benchmark]: Boogie Procedure Inliner took 131.67 ms. Allocated memory is still 109.1 MB. Free memory was 80.8 MB in the beginning and 78.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:57,409 INFO L168 Benchmark]: Boogie Preprocessor took 109.64 ms. Allocated memory is still 109.1 MB. Free memory was 78.7 MB in the beginning and 77.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:57,410 INFO L168 Benchmark]: RCFGBuilder took 742.95 ms. Allocated memory is still 109.1 MB. Free memory was 77.0 MB in the beginning and 62.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:46:57,411 INFO L168 Benchmark]: TraceAbstraction took 836.14 ms. Allocated memory is still 109.1 MB. Free memory was 61.9 MB in the beginning and 73.3 MB in the end (delta: -11.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:57,412 INFO L168 Benchmark]: Witness Printer took 5.99 ms. Allocated memory is still 109.1 MB. Free memory is still 73.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:46:57,417 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 63.2 MB in the beginning and 63.1 MB in the end (delta: 60.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 444.21 ms. Allocated memory was 83.9 MB in the beginning and 109.1 MB in the end (delta: 25.2 MB). Free memory was 46.8 MB in the beginning and 81.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 131.67 ms. Allocated memory is still 109.1 MB. Free memory was 80.8 MB in the beginning and 78.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 109.64 ms. Allocated memory is still 109.1 MB. Free memory was 78.7 MB in the beginning and 77.0 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 742.95 ms. Allocated memory is still 109.1 MB. Free memory was 77.0 MB in the beginning and 62.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 836.14 ms. Allocated memory is still 109.1 MB. Free memory was 61.9 MB in the beginning and 73.3 MB in the end (delta: -11.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.99 ms. Allocated memory is still 109.1 MB. Free memory is still 73.0 MB. 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: 134]: 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 17, overapproximation of someUnaryDOUBLEoperation at line 49, overapproximation of bitwiseAnd at line 67, overapproximation of someBinaryArithmeticFLOAToperation at line 70. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L34-L39] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L41-L46] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L48-L52] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L54-L56] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L129] float x = 0.0f / 0.0f; [L59] float w, s1, s2, z; [L60] __int32_t ix, hx, id; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L63] ieee_float_shape_type gf_u; [L64] gf_u.value = (x) [L65] EXPR gf_u.word [L65] (hx) = gf_u.word [L67] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L68] COND TRUE ix >= 0x50800000 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L69] COND TRUE ((ix) > 0x7f800000L) [L70] return x + x; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L130] float res = atan_float(x); [L17] return x != x; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L133] COND TRUE !isnan_float(res) [L134] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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: 43 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=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 09:46:57,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 09:47:00,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:47:00,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:47:00,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:47:00,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:47:00,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:47:00,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:47:00,808 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:47:00,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:47:00,822 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:47:00,824 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:47:00,825 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:47:00,826 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:47:00,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:47:00,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:47:00,832 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:47:00,834 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:47:00,836 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:47:00,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:47:00,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:47:00,845 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:47:00,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:47:00,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:47:00,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:47:00,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:47:00,857 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:47:00,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:47:00,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:47:00,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:47:00,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:47:00,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:47:00,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:47:00,865 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:47:00,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:47:00,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:47:00,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:47:00,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:47:00,871 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:47:00,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:47:00,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:47:00,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:47:00,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 09:47:00,938 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:47:00,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:47:00,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:47:00,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:47:00,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:47:00,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:47:00,945 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:47:00,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:47:00,947 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:47:00,947 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:47:00,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:47:00,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:47:00,950 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:47:00,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:47:00,951 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 09:47:00,951 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 09:47:00,952 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:47:00,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:47:00,952 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:47:00,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:47:00,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:47:00,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:47:00,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:47:00,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:47:00,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:47:00,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:47:00,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:47:00,956 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 09:47:00,956 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 09:47:00,956 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:47:00,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:47:00,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:47:00,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:47:00,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 09:47:00,958 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 25249e4a5dfcdfed2078f190bfb36f4672db41bdb03e03d1de22de138ec215e0 [2021-10-28 09:47:01,472 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:47:01,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:47:01,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:47:01,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:47:01,524 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:47:01,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-28 09:47:01,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/34db7c5d0/b5666c00f6074b62b8d019068e58dbe6/FLAG09af3d934 [2021-10-28 09:47:02,338 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:47:02,340 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/sv-benchmarks/c/float-newlib/float_req_bl_0610.c [2021-10-28 09:47:02,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/34db7c5d0/b5666c00f6074b62b8d019068e58dbe6/FLAG09af3d934 [2021-10-28 09:47:02,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/data/34db7c5d0/b5666c00f6074b62b8d019068e58dbe6 [2021-10-28 09:47:02,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:47:02,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:47:02,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:47:02,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:47:02,683 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:47:02,684 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:47:02" (1/1) ... [2021-10-28 09:47:02,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245570ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:02, skipping insertion in model container [2021-10-28 09:47:02,686 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:47:02" (1/1) ... [2021-10-28 09:47:02,695 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:47:02,721 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:47:02,954 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-28 09:47:02,958 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:47:02,979 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:47:03,105 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_38057d2d-b144-4c8d-92fa-57268c3f6b38/sv-benchmarks/c/float-newlib/float_req_bl_0610.c[3190,3203] [2021-10-28 09:47:03,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:47:03,151 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:47:03,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03 WrapperNode [2021-10-28 09:47:03,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:47:03,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:47:03,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:47:03,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:47:03,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:47:03,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:47:03,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:47:03,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:47:03,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,329 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,371 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:47:03,372 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:47:03,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:47:03,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:47:03,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (1/1) ... [2021-10-28 09:47:03,383 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:47:03,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:47:03,414 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:47:03,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:47:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-28 09:47:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 09:47:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:47:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-28 09:47:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 09:47:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:47:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:47:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-28 09:47:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 09:47:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:47:15,555 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:47:15,555 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-28 09:47:15,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:47:15 BoogieIcfgContainer [2021-10-28 09:47:15,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:47:15,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:47:15,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:47:15,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:47:15,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:47:02" (1/3) ... [2021-10-28 09:47:15,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6903a9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:47:15, skipping insertion in model container [2021-10-28 09:47:15,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:47:03" (2/3) ... [2021-10-28 09:47:15,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6903a9dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:47:15, skipping insertion in model container [2021-10-28 09:47:15,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:47:15" (3/3) ... [2021-10-28 09:47:15,575 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0610.c [2021-10-28 09:47:15,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:47:15,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:47:15,654 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:47:15,665 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 [2021-10-28 09:47:15,665 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 09:47:15,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 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) [2021-10-28 09:47:15,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 09:47:15,708 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:15,709 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:15,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:47:15,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:15,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1030411275, now seen corresponding path program 1 times [2021-10-28 09:47:15,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:15,737 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1788413478] [2021-10-28 09:47:15,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:15,739 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:15,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:15,743 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:15,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 09:47:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:17,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 09:47:17,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:17,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:17,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:17,475 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:17,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1788413478] [2021-10-28 09:47:17,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1788413478] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:47:17,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:47:17,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 09:47:17,479 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488992259] [2021-10-28 09:47:17,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 09:47:17,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:17,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 09:47:17,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:47:17,505 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.6129032258064515) internal successors, (50), 32 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:17,531 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2021-10-28 09:47:17,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 09:47:17,533 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 09:47:17,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:17,546 INFO L225 Difference]: With dead ends: 64 [2021-10-28 09:47:17,547 INFO L226 Difference]: Without dead ends: 30 [2021-10-28 09:47:17,551 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 09:47:17,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-28 09:47:17,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-28 09:47:17,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:17,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-28 09:47:17,598 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2021-10-28 09:47:17,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:17,598 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-28 09:47:17,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:17,599 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-28 09:47:17,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-28 09:47:17,600 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:17,600 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:17,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:17,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:17,801 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:47:17,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:17,803 INFO L85 PathProgramCache]: Analyzing trace with hash -1304895922, now seen corresponding path program 1 times [2021-10-28 09:47:17,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:17,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1355438246] [2021-10-28 09:47:17,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:17,805 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:17,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:17,806 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:17,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 09:47:19,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:19,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 09:47:19,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:19,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:19,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:21,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:21,720 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:21,721 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1355438246] [2021-10-28 09:47:21,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1355438246] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:47:21,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:47:21,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-28 09:47:21,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838739351] [2021-10-28 09:47:21,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-28 09:47:21,724 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:21,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-28 09:47:21,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-28 09:47:21,726 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:45,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:45,741 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2021-10-28 09:47:45,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:47:45,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-28 09:47:45,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:45,788 INFO L225 Difference]: With dead ends: 45 [2021-10-28 09:47:45,789 INFO L226 Difference]: Without dead ends: 37 [2021-10-28 09:47:45,790 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-10-28 09:47:45,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-28 09:47:45,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 30. [2021-10-28 09:47:45,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 29 states have internal predecessors, (38), 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) [2021-10-28 09:47:45,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 38 transitions. [2021-10-28 09:47:45,797 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 38 transitions. Word has length 11 [2021-10-28 09:47:45,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:45,798 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 38 transitions. [2021-10-28 09:47:45,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 09:47:45,799 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2021-10-28 09:47:45,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 09:47:45,800 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 09:47:45,800 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:47:45,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-28 09:47:46,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:46,002 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 09:47:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:47:46,003 INFO L85 PathProgramCache]: Analyzing trace with hash -1812830160, now seen corresponding path program 1 times [2021-10-28 09:47:46,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 09:47:46,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1696176015] [2021-10-28 09:47:46,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:47:46,004 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 09:47:46,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat [2021-10-28 09:47:46,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 09:47:46,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-28 09:47:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:47:47,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-28 09:47:47,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 09:47:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:47,788 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 09:47:48,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 09:47:48,568 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 09:47:48,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1696176015] [2021-10-28 09:47:48,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1696176015] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 09:47:48,569 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:47:48,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2021-10-28 09:47:48,570 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444006938] [2021-10-28 09:47:48,570 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 09:47:48,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 09:47:48,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 09:47:48,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-10-28 09:47:48,572 INFO L87 Difference]: Start difference. First operand 30 states and 38 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-10-28 09:47:49,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:47:49,011 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2021-10-28 09:47:49,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 09:47:49,013 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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 12 [2021-10-28 09:47:49,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 09:47:49,014 INFO L225 Difference]: With dead ends: 30 [2021-10-28 09:47:49,014 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 09:47:49,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-10-28 09:47:49,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 09:47:49,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 09:47:49,015 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) [2021-10-28 09:47:49,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 09:47:49,016 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-28 09:47:49,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 09:47:49,016 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 09:47:49,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 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) [2021-10-28 09:47:49,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 09:47:49,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 09:47:49,019 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:47:49,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-28 09:47:49,222 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/mathsat -unsat_core_generation=3 [2021-10-28 09:47:49,224 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 09:47:49,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:47:49,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:47:49,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:47:49,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:47:49,278 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:47:49,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 09:47:49,575 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-28 09:47:49,576 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 76 101) no Hoare annotation was computed. [2021-10-28 09:47:49,576 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-10-28 09:47:49,577 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-10-28 09:47:49,577 INFO L857 garLoopResultBuilder]: For program point L118-2(line 118) no Hoare annotation was computed. [2021-10-28 09:47:49,578 INFO L853 garLoopResultBuilder]: At program point L118-3(lines 58 120) the Hoare annotation is: (and (= |ULTIMATE.start_atan_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:47:49,578 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 80) no Hoare annotation was computed. [2021-10-28 09:47:49,578 INFO L857 garLoopResultBuilder]: For program point L77-2(lines 77 80) no Hoare annotation was computed. [2021-10-28 09:47:49,579 INFO L857 garLoopResultBuilder]: For program point L69(lines 69 70) no Hoare annotation was computed. [2021-10-28 09:47:49,579 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 09:47:49,579 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 09:47:49,579 INFO L857 garLoopResultBuilder]: For program point L78(lines 78 79) no Hoare annotation was computed. [2021-10-28 09:47:49,580 INFO L857 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-10-28 09:47:49,580 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-28 09:47:49,580 INFO L857 garLoopResultBuilder]: For program point L62-3(lines 62 66) no Hoare annotation was computed. [2021-10-28 09:47:49,581 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-10-28 09:47:49,581 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-10-28 09:47:49,581 INFO L857 garLoopResultBuilder]: For program point L71(lines 71 74) no Hoare annotation was computed. [2021-10-28 09:47:49,582 INFO L860 garLoopResultBuilder]: At program point L138(lines 122 139) the Hoare annotation is: true [2021-10-28 09:47:49,582 INFO L853 garLoopResultBuilder]: At program point L31(lines 19 32) the Hoare annotation is: false [2021-10-28 09:47:49,582 INFO L857 garLoopResultBuilder]: For program point L114(lines 114 119) no Hoare annotation was computed. [2021-10-28 09:47:49,583 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 09:47:49,583 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 134) no Hoare annotation was computed. [2021-10-28 09:47:49,583 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 09:47:49,584 INFO L853 garLoopResultBuilder]: At program point L17(line 17) the Hoare annotation is: (and (= |ULTIMATE.start_atan_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_atan_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-10-28 09:47:49,584 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 136) no Hoare annotation was computed. [2021-10-28 09:47:49,584 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-10-28 09:47:49,585 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 19 32) no Hoare annotation was computed. [2021-10-28 09:47:49,585 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-10-28 09:47:49,585 INFO L857 garLoopResultBuilder]: For program point L84(lines 84 100) no Hoare annotation was computed. [2021-10-28 09:47:49,586 INFO L857 garLoopResultBuilder]: For program point L76(lines 76 101) no Hoare annotation was computed. [2021-10-28 09:47:49,586 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-28 09:47:49,586 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 75) no Hoare annotation was computed. [2021-10-28 09:47:49,591 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 09:47:49,594 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:47:49,605 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,607 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,607 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,608 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,613 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,614 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,614 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,614 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,616 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,617 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,618 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,619 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,619 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,620 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:47:49 BoogieIcfgContainer [2021-10-28 09:47:49,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:47:49,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:47:49,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:47:49,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:47:49,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:47:15" (3/4) ... [2021-10-28 09:47:49,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:47:49,644 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-28 09:47:49,645 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-28 09:47:49,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:47:49,646 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:47:49,680 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-28 09:47:49,681 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-10-28 09:47:49,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:47:49,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:47:49,744 INFO L168 Benchmark]: Toolchain (without parser) took 47070.98 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 46.6 MB in the beginning and 47.0 MB in the end (delta: -371.5 kB). Peak memory consumption was 26.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,745 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 67.1 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:47:49,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 479.47 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 48.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.48 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 45.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,747 INFO L168 Benchmark]: Boogie Preprocessor took 103.96 ms. Allocated memory is still 67.1 MB. Free memory was 45.6 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,748 INFO L168 Benchmark]: RCFGBuilder took 12186.91 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 43.5 MB in the beginning and 66.4 MB in the end (delta: -22.9 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,748 INFO L168 Benchmark]: TraceAbstraction took 34057.36 ms. Allocated memory is still 92.3 MB. Free memory was 66.1 MB in the beginning and 52.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,749 INFO L168 Benchmark]: Witness Printer took 120.38 ms. Allocated memory is still 92.3 MB. Free memory was 51.8 MB in the beginning and 47.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:47:49,752 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 67.1 MB. Free memory is still 48.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 479.47 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 48.1 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 110.48 ms. Allocated memory is still 67.1 MB. Free memory was 47.9 MB in the beginning and 45.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 103.96 ms. Allocated memory is still 67.1 MB. Free memory was 45.6 MB in the beginning and 43.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12186.91 ms. Allocated memory was 67.1 MB in the beginning and 92.3 MB in the end (delta: 25.2 MB). Free memory was 43.5 MB in the beginning and 66.4 MB in the end (delta: -22.9 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 34057.36 ms. Allocated memory is still 92.3 MB. Free memory was 66.1 MB in the beginning and 52.1 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. * Witness Printer took 120.38 ms. Allocated memory is still 92.3 MB. Free memory was 51.8 MB in the beginning and 47.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 134]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 33.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 87 SDslu, 121 SDs, 0 SdLazy, 69 SolverSat, 3 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 23.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 65 GetRequests, 43 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 3 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 60 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 6 QuantifiedInterpolants, 330 SizeOfPredicates, 17 NumberOfNonLiveVariables, 296 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant [2021-10-28 09:47:49,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,764 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,765 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,766 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,766 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 58]: Loop Invariant [2021-10-28 09:47:49,767 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,767 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,767 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,767 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,768 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 62]: Loop Invariant [2021-10-28 09:47:49,769 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-28 09:47:49,770 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-28 09:47:49,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38057d2d-b144-4c8d-92fa-57268c3f6b38/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...