./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF --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 d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:42:14,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:42:14,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:42:14,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:42:14,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:42:14,487 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:42:14,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:42:14,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:42:14,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:42:14,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:42:14,496 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:42:14,497 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:42:14,498 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:42:14,499 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:42:14,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:42:14,503 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:42:14,504 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:42:14,505 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:42:14,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:42:14,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:42:14,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:42:14,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:42:14,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:42:14,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:42:14,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:42:14,535 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:42:14,536 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:42:14,537 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:42:14,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:42:14,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:42:14,541 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:42:14,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:42:14,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:42:14,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:42:14,547 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:42:14,547 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:42:14,548 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:42:14,548 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:42:14,549 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:42:14,550 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:42:14,551 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:42:14,552 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:42:14,601 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:42:14,602 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:42:14,602 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:42:14,603 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:42:14,604 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:42:14,604 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:42:14,605 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:42:14,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:42:14,606 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:42:14,606 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:42:14,607 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:42:14,608 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:42:14,608 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:42:14,608 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:42:14,608 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:42:14,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:42:14,609 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:42:14,609 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:42:14,609 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:42:14,610 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:42:14,610 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:42:14,610 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:42:14,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:42:14,611 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:42:14,611 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:14,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:42:14,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:42:14,612 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:42:14,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:42:14,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:42:14,614 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:42:14,614 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:42:14,615 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:42:14,615 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:42:14,615 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_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb [2021-11-20 07:42:14,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:42:14,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:42:14,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:42:14,953 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:42:14,954 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:42:14,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-11-20 07:42:15,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/bb7d83250/146776ef194a4828915b1450338ce118/FLAG9b1d40cba [2021-11-20 07:42:15,448 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:42:15,449 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-11-20 07:42:15,457 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/bb7d83250/146776ef194a4828915b1450338ce118/FLAG9b1d40cba [2021-11-20 07:42:15,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/bb7d83250/146776ef194a4828915b1450338ce118 [2021-11-20 07:42:15,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:42:15,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:42:15,871 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:15,871 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:42:15,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:42:15,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:15" (1/1) ... [2021-11-20 07:42:15,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f1c9f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:15, skipping insertion in model container [2021-11-20 07:42:15,876 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:15" (1/1) ... [2021-11-20 07:42:15,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:42:15,907 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:42:16,103 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-11-20 07:42:16,106 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:16,115 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:42:16,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-11-20 07:42:16,159 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:16,174 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:42:16,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16 WrapperNode [2021-11-20 07:42:16,174 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:16,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:16,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:42:16,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:42:16,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,213 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,254 INFO L137 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 216 [2021-11-20 07:42:16,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:16,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:42:16,259 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:42:16,259 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:42:16,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:42:16,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:42:16,337 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:42:16,337 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:42:16,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (1/1) ... [2021-11-20 07:42:16,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:16,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:42:16,386 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:42:16,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:42:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:42:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:42:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:42:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-20 07:42:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:42:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-20 07:42:16,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:42:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:42:16,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:42:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:42:16,532 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:42:16,534 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:42:16,876 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:42:16,883 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:42:16,883 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-20 07:42:16,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:16 BoogieIcfgContainer [2021-11-20 07:42:16,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:42:16,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:42:16,887 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:42:16,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:42:16,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:42:15" (1/3) ... [2021-11-20 07:42:16,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1000aa10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:16, skipping insertion in model container [2021-11-20 07:42:16,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:16" (2/3) ... [2021-11-20 07:42:16,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1000aa10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:16, skipping insertion in model container [2021-11-20 07:42:16,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:16" (3/3) ... [2021-11-20 07:42:16,906 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970b.c [2021-11-20 07:42:16,911 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:42:16,912 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:42:16,985 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:42:16,997 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:42:16,997 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:42:17,019 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:17,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:42:17,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:17,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:17,026 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:17,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:17,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2021-11-20 07:42:17,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:17,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546634872] [2021-11-20 07:42:17,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:17,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:17,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:17,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:42:17,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546634872] [2021-11-20 07:42:17,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546634872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:17,208 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:17,208 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 07:42:17,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261786584] [2021-11-20 07:42:17,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:17,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:42:17,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:42:17,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:42:17,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:42:17,246 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:17,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:17,263 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2021-11-20 07:42:17,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:42:17,267 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-20 07:42:17,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:17,280 INFO L225 Difference]: With dead ends: 82 [2021-11-20 07:42:17,280 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 07:42:17,283 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:42:17,287 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:17,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:42:17,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 07:42:17,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 07:42:17,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:17,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-11-20 07:42:17,326 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2021-11-20 07:42:17,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:17,327 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-11-20 07:42:17,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:17,328 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-11-20 07:42:17,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:42:17,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:17,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:17,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:42:17,329 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:17,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:17,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2021-11-20 07:42:17,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:42:17,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121131813] [2021-11-20 07:42:17,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:17,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:42:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:42:17,416 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:42:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:42:17,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:42:17,515 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-20 07:42:17,518 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:42:17,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:42:17,524 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-20 07:42:17,527 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:42:17,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:42:17 BoogieIcfgContainer [2021-11-20 07:42:17,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:42:17,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:42:17,596 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:42:17,597 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:42:17,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:16" (3/4) ... [2021-11-20 07:42:17,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-20 07:42:17,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:42:17,602 INFO L158 Benchmark]: Toolchain (without parser) took 1751.17ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 53.2MB in the beginning and 67.5MB in the end (delta: -14.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-20 07:42:17,602 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory was 57.9MB in the beginning and 57.8MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:17,605 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.14ms. Allocated memory is still 88.1MB. Free memory was 53.1MB in the beginning and 61.0MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:42:17,606 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.07ms. Allocated memory is still 88.1MB. Free memory was 61.0MB in the beginning and 58.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:42:17,607 INFO L158 Benchmark]: Boogie Preprocessor took 77.35ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 56.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:42:17,607 INFO L158 Benchmark]: RCFGBuilder took 548.98ms. Allocated memory is still 88.1MB. Free memory was 56.9MB in the beginning and 41.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-20 07:42:17,608 INFO L158 Benchmark]: TraceAbstraction took 708.68ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 41.3MB in the beginning and 68.0MB in the end (delta: -26.7MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2021-11-20 07:42:17,609 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 67.5MB in the end (delta: 527.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:42:17,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 88.1MB. Free memory was 57.9MB in the beginning and 57.8MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.14ms. Allocated memory is still 88.1MB. Free memory was 53.1MB in the beginning and 61.0MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.07ms. Allocated memory is still 88.1MB. Free memory was 61.0MB in the beginning and 58.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.35ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 56.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.98ms. Allocated memory is still 88.1MB. Free memory was 56.9MB in the beginning and 41.9MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 708.68ms. Allocated memory was 88.1MB in the beginning and 113.2MB in the end (delta: 25.2MB). Free memory was 41.3MB in the beginning and 68.0MB in the end (delta: -26.7MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 113.2MB. Free memory was 68.0MB in the beginning and 67.5MB in the end (delta: 527.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 177]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 163, overapproximation of bitwiseOr at line 134, overapproximation of someBinaryArithmeticDOUBLEoperation at line 135. Possible FailurePath: [L19-L28] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L30] static const double zero = 0.0; [L113-L116] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L118] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L172] double x = -1.0 / 0.0; [L173] CALL, EXPR __ieee754_log10(x) [L121] double y, z; [L122] __int32_t i, k, hx; [L123] __uint32_t lx; VAL [\old(x)=18014398509481986, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L126] ieee_double_shape_type ew_u; [L127] ew_u.value = (x) [L128] EXPR ew_u.parts.msw [L128] (hx) = ew_u.parts.msw [L129] EXPR ew_u.parts.lsw [L129] (lx) = ew_u.parts.lsw [L132] k = 0 VAL [\old(x)=18014398509481986, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=1, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L133] COND TRUE hx < 0x00100000 VAL [\old(x)=18014398509481986, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=1, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L134] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L135] return -two54_log10 / zero_log10; VAL [\old(x)=18014398509481986, hx=-1, ivln10_log10=108573620475812954167/250000000000000000000, k=0, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, lx=1, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] [L173] RET, EXPR __ieee754_log10(x) [L173] double res = __ieee754_log10(x); [L176] CALL, EXPR isnan_double(res) [L163] return x != x; VAL [\old(x)=18014398509481987, \result=0, ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481987, zero=0, zero_log10=0] [L176] RET, EXPR isnan_double(res) [L176] COND TRUE !isnan_double(res) [L177] reach_error() VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, res=18014398509481987, two54_log=18014398509481984, two54_log10=18014398509481984, x=18014398509481986, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 56 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 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 [2021-11-20 07:42:17,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF --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 d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:42:20,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:42:20,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:42:20,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:42:20,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:42:20,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:42:20,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:42:20,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:42:20,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:42:20,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:42:20,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:42:20,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:42:20,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:42:20,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:42:20,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:42:20,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:42:20,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:42:20,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:42:20,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:42:20,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:42:20,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:42:20,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:42:20,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:42:20,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:42:20,358 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:42:20,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:42:20,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:42:20,360 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:42:20,361 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:42:20,362 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:42:20,362 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:42:20,363 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:42:20,364 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:42:20,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:42:20,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:42:20,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:42:20,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:42:20,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:42:20,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:42:20,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:42:20,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:42:20,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-20 07:42:20,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:42:20,438 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:42:20,438 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:42:20,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:42:20,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:42:20,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:42:20,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:42:20,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:42:20,440 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:42:20,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:42:20,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:42:20,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:42:20,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:42:20,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:42:20,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:42:20,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:42:20,442 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-20 07:42:20,442 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-20 07:42:20,443 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-20 07:42:20,443 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:42:20,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:42:20,443 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:42:20,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:42:20,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:42:20,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:42:20,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:42:20,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:20,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:42:20,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:42:20,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:42:20,445 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-20 07:42:20,446 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-20 07:42:20,446 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:42:20,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:42:20,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:42:20,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:42:20,447 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 07:42:20,447 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_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5c5ff1b3d40131cee5d1997b867471744922aa520d3755a38edc2a954869cdb [2021-11-20 07:42:20,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:42:20,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:42:20,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:42:20,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:42:20,821 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:42:20,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-11-20 07:42:20,901 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/1cbe528f7/3b11042470fa457b8927b9e410748b0b/FLAG2931e4526 [2021-11-20 07:42:21,517 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:42:21,521 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c [2021-11-20 07:42:21,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/1cbe528f7/3b11042470fa457b8927b9e410748b0b/FLAG2931e4526 [2021-11-20 07:42:21,871 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/data/1cbe528f7/3b11042470fa457b8927b9e410748b0b [2021-11-20 07:42:21,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:42:21,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:42:21,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:21,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:42:21,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:42:21,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:21" (1/1) ... [2021-11-20 07:42:21,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6870a661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:21, skipping insertion in model container [2021-11-20 07:42:21,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:42:21" (1/1) ... [2021-11-20 07:42:21,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:42:21,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:42:22,208 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-11-20 07:42:22,212 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:22,229 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:42:22,304 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/sv-benchmarks/c/float-newlib/double_req_bl_0970b.c[4615,4628] [2021-11-20 07:42:22,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:42:22,324 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:42:22,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22 WrapperNode [2021-11-20 07:42:22,325 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:42:22,326 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:22,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:42:22,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:42:22,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,377 INFO L137 Inliner]: procedures = 21, calls = 38, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 216 [2021-11-20 07:42:22,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:42:22,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:42:22,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:42:22,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:42:22,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,414 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,419 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:42:22,420 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:42:22,420 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:42:22,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:42:22,421 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (1/1) ... [2021-11-20 07:42:22,437 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:42:22,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:42:22,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:42:22,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:42:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:42:22,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-20 07:42:22,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-20 07:42:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-20 07:42:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:42:22,533 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-20 07:42:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:42:22,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:42:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-20 07:42:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:42:22,687 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:42:22,689 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:42:51,729 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:42:51,738 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:42:51,738 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-20 07:42:51,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:51 BoogieIcfgContainer [2021-11-20 07:42:51,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:42:51,743 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:42:51,743 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:42:51,747 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:42:51,747 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:42:21" (1/3) ... [2021-11-20 07:42:51,748 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5362ebbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:51, skipping insertion in model container [2021-11-20 07:42:51,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:42:22" (2/3) ... [2021-11-20 07:42:51,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5362ebbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:42:51, skipping insertion in model container [2021-11-20 07:42:51,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:51" (3/3) ... [2021-11-20 07:42:51,753 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0970b.c [2021-11-20 07:42:51,760 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:42:51,760 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:42:51,825 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:42:51,839 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:42:51,840 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:42:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:51,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-20 07:42:51,863 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:51,863 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:51,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:51,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:51,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1032073611, now seen corresponding path program 1 times [2021-11-20 07:42:51,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:51,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2078951681] [2021-11-20 07:42:51,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:51,889 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:51,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:51,892 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:51,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-20 07:42:52,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:52,916 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-20 07:42:52,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:53,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:53,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:53,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:53,263 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:53,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2078951681] [2021-11-20 07:42:53,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2078951681] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:53,265 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:53,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-20 07:42:53,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880000967] [2021-11-20 07:42:53,268 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:53,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 07:42:53,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:53,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 07:42:53,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 07:42:53,307 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.725) internal successors, (69), 41 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:53,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:53,329 INFO L93 Difference]: Finished difference Result 82 states and 136 transitions. [2021-11-20 07:42:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 07:42:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-20 07:42:53,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:53,341 INFO L225 Difference]: With dead ends: 82 [2021-11-20 07:42:53,341 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 07:42:53,344 INFO L932 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 [2021-11-20 07:42:53,349 INFO L933 BasicCegarLoop]: 56 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:53,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 07:42:53,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 07:42:53,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 07:42:53,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.394736842105263) internal successors, (53), 38 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:53,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2021-11-20 07:42:53,387 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 10 [2021-11-20 07:42:53,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:53,388 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2021-11-20 07:42:53,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:53,388 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-11-20 07:42:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:42:53,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:53,389 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:53,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:53,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:53,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:53,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:53,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1303233586, now seen corresponding path program 1 times [2021-11-20 07:42:53,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:53,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119978185] [2021-11-20 07:42:53,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:53,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:53,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:53,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:53,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-20 07:42:54,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:54,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:42:54,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:55,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:55,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:56,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:56,528 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:56,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119978185] [2021-11-20 07:42:56,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [119978185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:56,528 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:56,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:42:56,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698663620] [2021-11-20 07:42:56,529 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:56,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:42:56,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:56,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:42:56,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:42:56,532 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:56,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:42:56,560 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-11-20 07:42:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:42:56,560 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 07:42:56,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:42:56,561 INFO L225 Difference]: With dead ends: 44 [2021-11-20 07:42:56,561 INFO L226 Difference]: Without dead ends: 39 [2021-11-20 07:42:56,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:42:56,564 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:42:56,565 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 169 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2021-11-20 07:42:56,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-11-20 07:42:56,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2021-11-20 07:42:56,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.368421052631579) internal successors, (52), 38 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:56,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 52 transitions. [2021-11-20 07:42:56,582 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 52 transitions. Word has length 11 [2021-11-20 07:42:56,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:42:56,584 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 52 transitions. [2021-11-20 07:42:56,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:42:56,586 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2021-11-20 07:42:56,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:42:56,586 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:42:56,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:42:56,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:42:56,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:42:56,814 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:42:56,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:42:56,815 INFO L85 PathProgramCache]: Analyzing trace with hash -593045937, now seen corresponding path program 1 times [2021-11-20 07:42:56,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:42:56,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497077189] [2021-11-20 07:42:56,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:42:56,816 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:42:56,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:42:56,819 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:42:56,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-20 07:42:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:42:57,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:42:57,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:42:57,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:57,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:42:58,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:42:58,430 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:42:58,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497077189] [2021-11-20 07:42:58,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497077189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:42:58,430 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:42:58,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:42:58,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255853900] [2021-11-20 07:42:58,431 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:42:58,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:42:58,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:42:58,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:42:58,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:42:58,433 INFO L87 Difference]: Start difference. First operand 39 states and 52 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:01,464 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:01,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:43:01,914 INFO L93 Difference]: Finished difference Result 73 states and 96 transitions. [2021-11-20 07:43:01,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:43:01,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-20 07:43:01,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:43:01,918 INFO L225 Difference]: With dead ends: 73 [2021-11-20 07:43:01,918 INFO L226 Difference]: Without dead ends: 44 [2021-11-20 07:43:01,919 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:43:01,921 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 4 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:43:01,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 211 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 1 Unknown, 22 Unchecked, 3.5s Time] [2021-11-20 07:43:01,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-20 07:43:01,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2021-11-20 07:43:01,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 38 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:01,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 51 transitions. [2021-11-20 07:43:01,930 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 51 transitions. Word has length 11 [2021-11-20 07:43:01,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:43:01,930 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 51 transitions. [2021-11-20 07:43:01,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:01,931 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2021-11-20 07:43:01,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:43:01,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:43:01,932 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:43:01,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:43:02,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:43:02,150 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:43:02,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:43:02,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1811167824, now seen corresponding path program 1 times [2021-11-20 07:43:02,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:43:02,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [751462929] [2021-11-20 07:43:02,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:43:02,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:43:02,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:43:02,153 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:43:02,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-20 07:43:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:43:03,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:43:03,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:43:04,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:04,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:43:12,265 WARN L838 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log10_~x#1| |c_ULTIMATE.start___ieee754_log10_~x#1|) c_~zero_log10~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from false [2021-11-20 07:43:14,467 WARN L860 $PredicateComparison]: unable to prove that (= (fp.div c_currentRoundingMode (fp.sub c_currentRoundingMode |c_ULTIMATE.start___ieee754_log10_~x#1| |c_ULTIMATE.start___ieee754_log10_~x#1|) c_~zero_log10~0) (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) is different from true [2021-11-20 07:43:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:43:35,444 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:43:35,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [751462929] [2021-11-20 07:43:35,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [751462929] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:43:35,445 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:43:35,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-20 07:43:35,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263861624] [2021-11-20 07:43:35,446 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:43:35,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-20 07:43:35,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:43:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-20 07:43:35,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=54, Unknown=2, NotChecked=14, Total=90 [2021-11-20 07:43:35,448 INFO L87 Difference]: Start difference. First operand 39 states and 51 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:43:43,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.74s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:45,820 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:48,616 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:50,876 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:54,548 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:57,458 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:43:59,655 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:02,232 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:04,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:06,731 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:09,099 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.37s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:11,351 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:13,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-20 07:44:14,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:14,158 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2021-11-20 07:44:14,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 07:44:14,172 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-20 07:44:14,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:14,173 INFO L225 Difference]: With dead ends: 57 [2021-11-20 07:44:14,173 INFO L226 Difference]: Without dead ends: 52 [2021-11-20 07:44:14,174 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=44, Invalid=90, Unknown=2, NotChecked=20, Total=156 [2021-11-20 07:44:14,175 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 40 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 49 IncrementalHoareTripleChecker+Unchecked, 36.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:14,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 201 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 13 Unknown, 49 Unchecked, 36.6s Time] [2021-11-20 07:44:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-20 07:44:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 39. [2021-11-20 07:44:14,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 38 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) [2021-11-20 07:44:14,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2021-11-20 07:44:14,192 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 12 [2021-11-20 07:44:14,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:14,193 INFO L470 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2021-11-20 07:44:14,193 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 10 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:14,193 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2021-11-20 07:44:14,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-20 07:44:14,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:44:14,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:44:14,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:44:14,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:44:14,396 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:44:14,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:44:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash -72340386, now seen corresponding path program 1 times [2021-11-20 07:44:14,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-20 07:44:14,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083581653] [2021-11-20 07:44:14,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:44:14,398 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-20 07:44:14,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat [2021-11-20 07:44:14,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-20 07:44:14,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-20 07:44:14,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:44:14,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 07:44:14,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:44:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:15,918 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:44:16,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:44:16,783 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-20 07:44:16,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083581653] [2021-11-20 07:44:16,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083581653] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-20 07:44:16,784 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:44:16,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-20 07:44:16,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970155739] [2021-11-20 07:44:16,784 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-20 07:44:16,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 07:44:16,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-20 07:44:16,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:44:16,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:44:16,786 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:16,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:44:16,814 INFO L93 Difference]: Finished difference Result 39 states and 50 transitions. [2021-11-20 07:44:16,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:44:16,815 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-20 07:44:16,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:44:16,816 INFO L225 Difference]: With dead ends: 39 [2021-11-20 07:44:16,816 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:44:16,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:44:16,818 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 4 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:44:16,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 4 Unchecked, 0.0s Time] [2021-11-20 07:44:16,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:44:16,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:44:16,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:16,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:44:16,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-20 07:44:16,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:44:16,820 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:44:16,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 6 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:44:16,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:44:16,821 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:44:16,823 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:44:16,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:44:17,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/mathsat -unsat_core_generation=3 [2021-11-20 07:44:17,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:44:17,818 INFO L854 garLoopResultBuilder]: At program point L159(lines 120 160) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_~x#1|) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:44:17,818 INFO L858 garLoopResultBuilder]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2021-11-20 07:44:17,818 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 56) the Hoare annotation is: false [2021-11-20 07:44:17,819 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 179) no Hoare annotation was computed. [2021-11-20 07:44:17,819 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:44:17,819 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:44:17,819 INFO L858 garLoopResultBuilder]: For program point L152-1(lines 152 157) no Hoare annotation was computed. [2021-11-20 07:44:17,819 INFO L854 garLoopResultBuilder]: At program point L152-2(lines 152 157) the Hoare annotation is: false [2021-11-20 07:44:17,819 INFO L858 garLoopResultBuilder]: For program point L152-3(lines 152 157) no Hoare annotation was computed. [2021-11-20 07:44:17,820 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-20 07:44:17,820 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 57) no Hoare annotation was computed. [2021-11-20 07:44:17,820 INFO L858 garLoopResultBuilder]: For program point L45-1(lines 32 111) no Hoare annotation was computed. [2021-11-20 07:44:17,820 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-11-20 07:44:17,820 INFO L858 garLoopResultBuilder]: For program point L37-1(lines 37 42) no Hoare annotation was computed. [2021-11-20 07:44:17,820 INFO L854 garLoopResultBuilder]: At program point L37-2(lines 37 42) the Hoare annotation is: false [2021-11-20 07:44:17,820 INFO L858 garLoopResultBuilder]: For program point L37-3(lines 37 42) no Hoare annotation was computed. [2021-11-20 07:44:17,821 INFO L858 garLoopResultBuilder]: For program point L46(lines 46 47) no Hoare annotation was computed. [2021-11-20 07:44:17,821 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 87) no Hoare annotation was computed. [2021-11-20 07:44:17,821 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 68) no Hoare annotation was computed. [2021-11-20 07:44:17,821 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 63 68) the Hoare annotation is: false [2021-11-20 07:44:17,821 INFO L858 garLoopResultBuilder]: For program point L63-3(lines 63 68) no Hoare annotation was computed. [2021-11-20 07:44:17,821 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 79) no Hoare annotation was computed. [2021-11-20 07:44:17,822 INFO L854 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (_ +zero 11 53)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) (_ +zero 11 53))) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res#1|) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_~x#1|) (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-20 07:44:17,822 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 86) no Hoare annotation was computed. [2021-11-20 07:44:17,822 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 49) no Hoare annotation was computed. [2021-11-20 07:44:17,822 INFO L858 garLoopResultBuilder]: For program point L106(lines 106 109) no Hoare annotation was computed. [2021-11-20 07:44:17,822 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 78) no Hoare annotation was computed. [2021-11-20 07:44:17,822 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 110) no Hoare annotation was computed. [2021-11-20 07:44:17,823 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:44:17,823 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 177) no Hoare annotation was computed. [2021-11-20 07:44:17,823 INFO L861 garLoopResultBuilder]: At program point L181(lines 165 182) the Hoare annotation is: true [2021-11-20 07:44:17,823 INFO L858 garLoopResultBuilder]: For program point L140-1(lines 140 144) no Hoare annotation was computed. [2021-11-20 07:44:17,823 INFO L854 garLoopResultBuilder]: At program point L140-2(lines 140 144) the Hoare annotation is: false [2021-11-20 07:44:17,823 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:44:17,823 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 145) no Hoare annotation was computed. [2021-11-20 07:44:17,824 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 120 160) no Hoare annotation was computed. [2021-11-20 07:44:17,824 INFO L858 garLoopResultBuilder]: For program point L100(lines 100 104) no Hoare annotation was computed. [2021-11-20 07:44:17,824 INFO L858 garLoopResultBuilder]: For program point L125-1(lines 125 130) no Hoare annotation was computed. [2021-11-20 07:44:17,824 INFO L854 garLoopResultBuilder]: At program point L125-2(lines 125 130) the Hoare annotation is: (and (= (_ +zero 11 53) ~zero_log10~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 11 53) currentRoundingMode 1.0)) (_ +zero 11 53)) |ULTIMATE.start___ieee754_log10_~x#1|))) [2021-11-20 07:44:17,824 INFO L858 garLoopResultBuilder]: For program point L125-3(lines 125 130) no Hoare annotation was computed. [2021-11-20 07:44:17,824 INFO L854 garLoopResultBuilder]: At program point L109(lines 32 111) the Hoare annotation is: false [2021-11-20 07:44:17,825 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 135) no Hoare annotation was computed. [2021-11-20 07:44:17,829 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-20 07:44:17,832 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:44:17,850 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,851 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,851 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,851 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,851 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,852 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,852 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,861 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,862 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,862 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,862 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,862 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,862 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,863 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,865 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,866 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,866 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,866 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,866 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,866 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,867 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,867 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,868 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,869 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,870 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,870 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,871 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,871 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,872 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:44:17 BoogieIcfgContainer [2021-11-20 07:44:17,873 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:44:17,874 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:44:17,874 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:44:17,874 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:44:17,875 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:42:51" (3/4) ... [2021-11-20 07:44:17,877 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:44:17,891 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-20 07:44:17,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 07:44:17,892 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:44:17,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:44:17,919 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~Pluszero~LONGDOUBLE() == zero_log10 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) [2021-11-20 07:44:17,919 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:44:17,920 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-20 07:44:17,953 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:44:17,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:44:17,954 INFO L158 Benchmark]: Toolchain (without parser) took 116076.10ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 23.1MB in the beginning and 23.3MB in the end (delta: -180.7kB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,955 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 30.0MB in the beginning and 29.9MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:44:17,955 INFO L158 Benchmark]: CACSL2BoogieTranslator took 445.35ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 22.9MB in the beginning and 44.0MB in the end (delta: -21.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,956 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.45ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 41.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,956 INFO L158 Benchmark]: Boogie Preprocessor took 41.27ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 39.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,957 INFO L158 Benchmark]: RCFGBuilder took 29320.87ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 34.9MB in the end (delta: 4.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,957 INFO L158 Benchmark]: TraceAbstraction took 86130.15ms. Allocated memory is still 62.9MB. Free memory was 34.5MB in the beginning and 29.6MB in the end (delta: 4.9MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,957 INFO L158 Benchmark]: Witness Printer took 80.12ms. Allocated memory is still 62.9MB. Free memory was 29.6MB in the beginning and 23.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-20 07:44:17,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 48.2MB. Free memory was 30.0MB in the beginning and 29.9MB in the end (delta: 31.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 445.35ms. Allocated memory was 48.2MB in the beginning and 62.9MB in the end (delta: 14.7MB). Free memory was 22.9MB in the beginning and 44.0MB in the end (delta: -21.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.45ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 41.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.27ms. Allocated memory is still 62.9MB. Free memory was 41.5MB in the beginning and 39.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 29320.87ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 34.9MB in the end (delta: 4.5MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * TraceAbstraction took 86130.15ms. Allocated memory is still 62.9MB. Free memory was 34.5MB in the beginning and 29.6MB in the end (delta: 4.9MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 80.12ms. Allocated memory is still 62.9MB. Free memory was 29.6MB in the beginning and 23.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation 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 - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 177]: 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, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 86.0s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 42.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 40.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 649 SdHoareTripleChecker+Invalid, 37.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 98 IncrementalHoareTripleChecker+Unchecked, 458 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 68 IncrementalHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 191 mSDtfsCounter, 68 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 87 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 101 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 37.9s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 108 ConstructedInterpolants, 22 QuantifiedInterpolants, 775 SizeOfPredicates, 33 NumberOfNonLiveVariables, 280 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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: 152]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 163]: Loop Invariant [2021-11-20 07:44:17,985 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,986 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,986 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,986 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,986 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,986 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,987 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,987 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,987 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,988 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,988 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,988 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,988 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,988 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && 1bv32 == \result) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 140]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 120]: Loop Invariant [2021-11-20 07:44:17,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,990 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,991 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,991 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,991 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,992 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,992 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,992 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,992 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,992 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,993 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.sub~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~Pluszero~LONGDOUBLE()) && ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == zero_log10) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 125]: Loop Invariant [2021-11-20 07:44:17,993 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,994 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-20 07:44:17,994 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-20 07:44:17,995 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~Pluszero~LONGDOUBLE() == zero_log10 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) RESULT: Ultimate proved your program to be correct! [2021-11-20 07:44:18,198 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-20 07:44:18,253 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_065c27a1-b8b0-4a2f-9b65-fbaf24f1e848/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE